The partial pressure (P) Xe = 203 mm Hg & (P) He = 648 mm Hg
According to Dalton's Law of partial pressure , Partial pressure of gas in mixture = X gas ( P total )
Where X gas is mole fraction of gas.
First calculate no. of moles & mole fraction of each gas.
We know that , No. of moles = Mass / Molar mass
therefore No. of moles of Xe ( n Xe ) = 9.81 g / ( 131.30 g /mol ) = 0.074 mol
therefore No. of moles of He ( n He ) = 0.946 g / ( 4.00 g / mol ) = 0.2365 mol
Mole fraction of Xe = Moles of Xe / Total moles of gas = n Xe / ( n Xe + n He )
therefore Mole fraction of Xe = 0.074 / ( 0.074 + 0.2365 ) = 0.2383
Mole Fraction of He = n He / ( n Xe + n He )
therefore Mole fraction of He = 0.2365 / ( 0.074 + 0.2365 ) = 0.7616
Partial pressure of Xe = 0.238 ( 851 mm Hg ) = 203 mm Hg
Partial pressure of He = 0.761 ( 851 mm Hg ) = 648 mm Hg
ANSWER : P Xe = 203 mm Hg & P He = 648 mm Hg
To learn more about Dalton's Law of partial pressure visit:
https://brainly.com/question/26587194
#SPJ4
10 The labels from bottles of hydrochloric acid, sodium hydroxide and potassium carbonate solutions have fallen off. Using only three test tubes and three pieces of magnesium metal, describe how you could find out what was in each bottle. Include any safety precautions you need to take in your answer. [Total ?]
To determine the contents of the bottles, the following steps can be taken:
Safety precautions: Wear gloves and goggles to protect against potential chemical spills or splashes.Add a small amount of the contents of one bottle to a test tube and label it "A." Add a small amount of the contents of the second bottle to a second test tube and label it "B." Add a small amount of the contents of the third bottle to a third test tube and label it "C."Place a piece of magnesium metal in test tube "A." Observe any reaction. If there is no reaction, the contents of bottle "A" are not hydrochloric acid or sodium hydroxide. If there is a reaction, proceed to the next step.Place a piece of magnesium metal in test tube "B." Observe any reaction. If there is no reaction, the contents of bottle "B" are not hydrochloric acid or sodium hydroxide. If there is a reaction, proceed to the next step.Place a piece of magnesium metal in test tube "C." Observe any reaction. If there is no reaction, the contents of bottle "C" are not hydrochloric acid or sodium hydroxide. If there is a reaction, the contents of the bottle are either hydrochloric acid or sodium hydroxide.To determine which of these two substances is present, add a small amount of the contents of bottle "A" to a test tube with a piece of magnesium metal. If there is no reaction, the contents of bottle "A" are hydrochloric acid. If there is a reaction, the contents of bottle "A" are sodium hydroxide.Repeat this process for bottles "B" and "C" to determine their contents.Dispose of the chemicals safely and wash the test tubes thoroughly before discarding.How do you rearrange the Arrhenius equation to solve for T2?
ln(k2/k1)=Ea/R(1/T1-1/T2) [or should it be ln(k2/k1) = Ea/R(1/T2-1/T1)?]
Info given in the question:
(k2/k1)=2
Ea= 3.87*10^4 J/mol
R= 8.314 J/mol*K
T1=293K
The Arrhenius equation is given by k = Ae^(-Ea/RT), where A is the frequency or preexponential component and e^(-Ea/RT) is the percentage of collisions with energy sufficient to break through the activation barrier at temperature T.
The Arrhenius equation in physical chemistry is a formula for the temperature dependence of reaction rates. Based on the research of Dutch chemist Jacobus Henricus van 't Hoff, who had noted in 1884 that the van 't Hoff equation for the temperature dependence of equilibrium constants suggests such a formula for the rates of both forward and reverse reactions, Svante Arrhenius proposed the equation in 1889.
This equation has numerous and significant applications in calculating the energy of activation and the rate of chemical reactions. Arrhenius explained and justified the formula using physical principles. The best way to view it right now is as an empirical relationship.
It can be used to simulate a wide range of thermally induced processes and reactions, including the temperature variation of diffusion coefficients, the population of crystal vacancies, creep rates, and many more. The 1935-created Eyring equation also explains the connection between rate and energy.
To know more about the Arrhenius Equation:
https://brainly.com/question/13467424
#SPJ4
Calculate Δ H o for the following reaction in two ways, using the data given below.
H2(g) + I2(g) → 2HI(g)
(a) Using the equation Δ H o rxn = ∑ (BE(reactants)) − ∑ (BE(products)) ???kJ/mol
(b) Using the equation Δ H o rxn = ∑ (nΔ H o f (products)) − ∑ (mΔ H o f (reactants)) ??? kJ/mol
a). According to given question using the equation ΔH°rxn = -9.2kJ/mol
b). According to given question using the second equation ΔH°rxn = -9.2kJ/mol
How do you define reaction in chemistry?In a reaction mixture, one or maybe more compounds called as reactants—are changed into one or maybe more additional substances—also known or products. Substances or compounds make up substances.
Briefing:Hess's law allows you to calculate the H of the a reaction given the H at which the compounds participating in the reaction were formed, as shown below:
ΔH°rxn = ∑(BE(reactants)) − ∑(BE(products))
Or:
ΔH°rxn = ∑(nΔH°f (products)) − ∑(mΔH°f (reactants))
For the reaction:
H₂(g) + I₂(g) → 2HI(g)
a). Using the first equation:
ΔH°rxn = ΔH (H-H) + ΔH (I-I) - 2ΔHBE (H-I)
ΔH°rxn = 436.4kJ + 151kJ - 2×298.3kJ
ΔH°rxn = -9.2kJ/mol
b). Using the second equation:
ΔH°rxn = 2Δ°f (HI) − ΔH°f (H₂) - ΔH°f (I₂)
ΔH°rxn = 2×25.9kJ - 0kJ - 61.0kJ
ΔH°rxn = -9.2kJ/mol
To know more about Reaction visit:
https://brainly.com/question/26505550
#SPJ4
What is the molecular geometry of the SBr6 molecule? a)octahedral b)trigonal bipyramidal c)tetrahedral d)bent e)trigonal pyramidal
The molecular geometry of the SBr6 molecule is a) octahedral.
Molecular Geometry:
Molecular geometry is the three-dimensional arrangement of atoms that make up a molecule. This includes not only the general shape of the molecule, but also bond lengths, bond angles, torsion angles, and all other geometric parameters that determine the position of each atom.
Molecular structure influences several properties of matter, such as reactivity, polarity, phase, color, magnetism, and bioactivity. The bond angles an atom falls into are only slightly dependent on the rest of the molecule. That is, they are mostly local and can therefore be understood as transferable properties.
Octahedral Molecular geometry:The concept of octahedral coordination geometry was developed by Alfred Werner to describe the stoichiometry and isomerism of coordination compounds.
In chemistry, the octahedral molecular geometry, also called the tetragonal bipyramid, consists of six atoms or groups of atoms or ligands arranged symmetrically around a central atom and defining the vertices of the octahedron. represents the shape of a compound with The octahedron has eight faces, so the prefix is okta.
This is because the molecule is composed of 6 Br atoms that are arranged symmetrically around the central S atom, forming an octahedron.
Learn more about Molecular Geometry:
https://brainly.com/question/7558603
#SPJ4
How can I convert R-2-bromopentane to a Fisher projection?
The simplest way to convert R-2-bromopentane to a Fisher projection is to draw a Newman projection of the molecule, then convert the Newman projection to a Fischer projection.
To draw a Newman projection, start with a pentane structure and place a bromine atom on the second (R) carbon. The Newman projection should look like a cross with four carbon atoms and a bromine atom in the center. The bromine atom should be facing away from the viewer.
To convert the Newman projection to a Fischer projection, rotate the cross 90 degrees counter-clockwise and draw a line connecting the two ends of the cross. This will produce a Fischer projection with four carbon atoms and a bromine atom at the center. The bromine atom should be facing down.
Learn more about Newman Projection:
https://brainly.com/question/5597731
#SPJ4
5. in this experiment, 1.0 ml of saturated sodium chloride is used to rinse the hickman head after the initial distillation. why is saturated sodium chloride, rather than pure water, used for this procedure and the subsequent washing of the organic layer?
Saturated sodium chloride is used in this procedure because it helps to separate the organic layer from the aqueous layer.
What is organic layer?
Organic layer is a type of soil layer that includes organic matter such as leaves, wood, roots, and other plant and animal remains. This type of soil is important for agricultural production and is also beneficial to the environment. Organic layer is also known as top soil or humus. It is the most fertile and nutrient rich soil layer, due to the presence of the decomposing organic matter. Organic layer helps to regulate soil temperature and moisture, improve soil structure and aeration, and provide essential nutrients for plant growth. It also helps to reduce erosion, improve water-holding capacity, and keep soil particles in place. Organic layer also helps to increase the biodiversity of the soil, as it provides a habitat for beneficial microorganisms and other organisms. Organic layer is an important part of any healthy soil system.
The sodium chloride solution has a higher density than water and helps to ensure that the two layers remain distinct. Additionally, the sodium chloride helps to break the surface tension between the two layers, making it easier to separate them.
To learn more about organic layer
https://brainly.com/question/14356327
#SPJ4
The quantum number defines the shape of an orbital. spin magnetic principal angular momentum psi The subshell contains only one orbital. 5d 6f 4s 3d 1p The angular momentum quantum number is 3 in orbitals. s p d f a The principal quantum number of the first d subshell is 1 2 3 4 0 [Ar]4s^23d^104p^3 is the electron configuration of a(n) atom. As V P Sb Sn
The primary quantum number (n), the orbital angular momentum quantum number (l), the magnetic quantum number (ml), and the electron spin quantum number are the four quantum numbers that make up an atom (ms).
There can be no zero for the main quantum number (n). Therefore, the permitted values for n are 1, 2, 3, 4, and so forth. Any integer between 0 and n – 1 can serve as the angular quantum number (l). For instance, if n = 3, l can be one of 0, 1, or 2. Any integer between -l and +l can be used as the magnetic quantum number (m). The principal quantum number is the first quantum number (n). The energy of an electron is substantially determined by the fundamental quantum number.
To know more about the quantum number,
https://brainly.com/question/2292596
#SPJ4
Naphthalene (moth balls) contains 93.7% carbon and 6.3% hydrogen. The molar mass of naphthalene is 128 g/mol. Determine the empirical and molecular formulas for naphthalene.
Molecular formula naphthalene is C₁₀H₈ and empirical formula naphthalene is C₅H₄
What is molecular and empirical formula?Molecular formulas tells how many atoms of each element are present in a compound whereas empirical formulas tells the simplest or reduced ratio of elements in a compound.
Given, 93.7 g of Carbon
and 6.3 g of H
In 100 g of naphthalene we have 93.7 g of Carbon and 6.3 g of Hydrogen
So, in 128 g of naphthalene we will have:
128 . 93.7 / 100 = 120 g of C
128. 6.3 / 100 = 8 g of H
Convert mass to moles,
120 g . 1mol / 12 g = 10 moles C
8 g . 1mol/ 1g = 8 moles H
Hence, Molecular formula naphthalene becomes C₁₀H₈
and Empirical formula naphthalene becomes C₅H₄.
To know more about molecular and empirical formula, refer
https://brainly.com/question/13058832
#SPJ4
Explain why Group 1 metals such as potassium should not be used in displacement reactions with Copper sulphate solution
Group 1 metals such as potassium should not be used in displacement reactions with Copper sulphate solution because Copper cannot displace potassium from a compound because copper is less reactive than potassium.
What is displacement reaction?A displacement reaction, also known as single replacement reaction or exchange reaction, is described as a chemical reaction in which one element is replaced by another in a compound.
Most group 1 elements react with oxygen from the air to make metal oxides.
Learn more about displacement reactions at: https://brainly.com/question/20690229
#SPJ1
Question 22 Cr is a member of which family? noble gases halogens alkaline earth metals alkali metals None of these
Chromium (Cr) is a member of transition metals family, so the correct answer is E none of these.
What is transition metal?Usually transition metals are strong and hard elements. Both the melting and boiling points of these metals are high. Transitional metals family are versatile materials that can be hammered, bent, and drawn into wires. They also carry heat and electricity effectively. These metals' atoms have a strong attraction to one another. They are typically glossy as well.
The chemical element chromium has the atomic number 24 and the symbol Cr. It is the group 6's first element. It is a transition metal family that is steely-grey, glossy, tough, and brittle.
The great corrosion resistance and hardness of chromium metal make it valuable. The discovery that steel could be rendered extremely resistant to corrosion and discoloration by adding metallic chromium to make stainless steel was a significant advancement in the production of steel. 85% of commercial use is made up of stainless steel with chrome plating (electroplating with chromium). Chromium is highly prized for its ability to be finely polished while remaining tarnish-resistant. Nearly 70% of the visible spectrum and approximately 90% of infrared light are reflected by polished chromium.
Learn more about transition metal at https://brainly.com/question/12843347
#SPJ4
the combustion of carbon disulfide with oxygen forms carbon dioxide and sulfur dioxide. what are the coefficients when the reaction equation is balanced using the simplest, whole number coefficients? the pink spheres represent sulfur atoms, the black spheres carbon atoms and the open spheres, oxygen atoms.
Fuel consumption and other atoms than carbon and hydrogen, such as sulfur, nitrogen, or oxygen, have a direct impact on carbon dioxide emissions.
What is the carbon combustion equation in words?Charcoal, a solid, and oxygen, a gas, are the reactants in the described reaction, and carbon dioxide gas is the result. It is possible to write the chemical equation as C (s) + O2 (g) CO2 (g) Q.
Carbon combustion is what kind of a reaction?Since heat is produced during the reaction, it is an exothermic reaction. As carbon and oxygen combine to generate carbon dioxide, it is a combination reaction. It is a combustion reaction because oxygen causes carbon to burn.
To know more about Fuel consumption visit:-
https://brainly.com/question/27959746
#SPJ4
Question 45 4.00 moles of sodium have a mass of 0 11.08 0 44.03. 92.03. 4603
4.00 moles of Sodium have a mass equivalent to 92 grams.
Sodium contains 12 neutrons and 11 protons and has a mass number of 23, which means one mole (6.022 X 1023) of sodium have a mass of 23 grams
Atomic mass of Sodium =23 grams/mol
Mass of 1.00 mole of sodium = 23 grams
Mass of 4.00 moles of sodium = 4 X 23 grams
= 92 grams
Therefore, 4.00 moles of Sodium have a mass equivalent to 92 grams.
To learn more about mass, click here:
https://brainly.com/question/18803094
#SPJ4
explain the difference between hybrid atomic orbitals in valence bond theory and lcao molecular orbitals in mo theory.
In valence bond theory, a hybrid orbital is a weighted linear sum of the valence orbitals of a particular atom, and the hybrid orbital remains localized to that atom. In molecular orbital theory, a molecular orbital is a weighted linear sum of the valence atomic orbitals of all atoms in a molecule, and many of the molecular orbitals are delocalized throughout the molecule.
A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds. Depending on the context, the term may or may not include ions that meet this criterion.In quantum physics, organic chemistry and biochemistry, ions The distinction between is removed and molecule is often used when referring to polyatomic ions.
Molecules can be isonuclear. H. Consists of atoms of chemical elements. Two atoms in the oxygen molecule (O2). Or it may be heteronuclear, which is a compound composed of multiple elements. Water (2 hydrogen atoms and 1 oxygen atom; H2O). In gas dynamics theory, the term molecule is often used for gas particles, regardless of their composition. This relaxes the requirement that molecules contain more than one atom, since noble gases are single atoms.
Learn more about molecules here : https://brainly.com/question/475709
#SPJ4
When 1-chlorobutane is treated with sodium hydroxide, two products are formed_ 14.17a1 Identify the two products: (Select all that apply:) a)1-butyne b) 1-butanal c)1-butene d)2-butanol e)2-butene f)1-butanol
Two products that are created 1-Butene and 1-Butanol are produced when sodium hydroxide is used to treat 1-Chlorobutane.
NaOH + CH3CH2CH2CH2-Cl NaCl + CH3CH2CH2CH2-OH
This is a substitution reaction as opposed to an elimination reaction. One of the primary (1°) alkyl halides, 1-chlorobutane, is "unhindered," and sodium hydroxide's hydroxide ion (OH-) is a potent nucleophile. In this reaction, the hydroxide will take the place of the chloro group to produce solely 1-butanol. The alkyl halide must be sterically inhibited, that is, either tertiary (3°) or secondary (2°), for elimination to take place. However, substitution reactions can also take place for 2° alkyl halides as a rival process, producing a variety of products.
When 1-chlorobutane is present in a sodium hydroxide solution and an E2 elimination takes place, the hydroxide will vigorously deprotonate the 1-chlorobutane. In turn, a double-bond will form and the chlorine group will go as a result. As a result, but-1-ene will be the end result.
To learn more about sodium hydroxide click here https://brainly.com/question/29327783
#SPJ4
What is the correct chemical formula for hexachlorostannate (IV) ion?
The correct chemical formula for hexachlorostannate (IV) ion is SnCl6^2-.
The hexachlorostannate (IV) ion is an inorganic compound that consists of a central tin (Sn) atom surrounded by six chlorine (Cl) atoms. The charge on the ion is 2-, which indicates that there are two extra electrons present. The (IV) in the name refers to the oxidation state of the tin atom, which is +4. The chemical formula for hexachlorostannate (IV) ion is therefore SnCl6^2-.
Acetaminophen, better known as paracetamol, has the following Lewis structure: (a) What are the approximate values of the bond angles labelled 1, 2, and 3? (b) What hybrid orbitals are used about the central atom of each of these angles? (c) How many bonds are in the molecule?
(a) What are the approximate values of the bond angles labelled 1, 2, and 3?
Bond Angle 1 = 105°
Bond Angle 2 = 120°
Bond Angle 3 = 120°
(b) What hybrid orbitals are used about the central atom of each of these angles?
Oxygen at 1 = [tex]sp^{3}[/tex] = Bent
Carbon at 2 = [tex]sp^{2}[/tex] = Trigonal Planar
Carbon at 3 = [tex]sp^{2}[/tex] = Trigonal Planar
(c) How many bonds are in the molecule?
Number of bonds = 20
Molecule : Molecules are made up of one or more atoms. The smallest particle of a substance that has all of the chemical and physical properties of that substance. For example, oxygen atom is represented as O, oxygen molecule is represented as [tex]O_{2}[/tex].
Molecules are of 3 types : Molecule of an atom, Molecule of an element and Molecule of a compound. There are four major classes of large biological molecules—carbohydrates, lipids, proteins, and nucleic acids.
To know more about Molecule : https://brainly.com/question/1446104
#SPJ4
Why is helium not the most electronegative elemnt?
[tex]\huge\underline{\red{A}\green{n}\blue{s}\purple{w}\pink{e}\orange{r} —}[/tex]
It has no electronegativity because it is a noble gas.
Explanation:
Electronegativity describes an atoms relative tendency to attract a pair of electrons in a molecule. It can be described as a property of an atom within a molecule. As helium is a noble gas it will not react to form molecules and will thus not be in a situation where it would attract a pair of electrons within a molecule.
Hope it helps you!!Answer: As helium is a noble gas it will not react to form molecules and will thus not be in a situation where it would attract a pair of electrons within a molecule.
Explanation:
what mass of a 0.1500% solution can be made from 0.2755 g of potassium iodide? b. a 750. ml bottle of merlot is 185 ppm in sodium sulfite. if the density of the wine is 0.992 g/ml, how many grams of sodium sulfite are in the bottle of merlot? c. a 375 ml solution is 0.486 m in sodium acetate. how many grams of sodium acetate are in the solution? d. how would you prepare 1500. g of a 2.000% sucrose (sugar) mass percent solution to be used for intravenous feeding in a hospital?
10 g of glucose present in 100g of water.
A hospital is a medical facility that provides patient care using specialized medical and medical support staff and medical equipment.
Hospitals and facilities are constructed, staffed, and equipped for the diagnosis of disease. For medical and surgical treatment of the sick and injured. And for their accommodation during this process. Modern hospitals often also serve as a testing and teaching centers.
Hospitals complement and enhance the effectiveness of many other parts of the healthcare system by providing ongoing services for both acute and complex illnesses. They focus scarce resources on a well-planned referral network to efficiently meet the health needs of the population.
Learn more about the hospital here:-https://brainly.com/question/1908877
#SPJ4
a recursive definition is characteristically a three-step process.
TRUE , a recursive definition is characteristically a three-step process.First, we specify some basic objects in the set
A three-step method is typical of a recursive definition. We start by defining a few fundamental set objects. Then, using the ones we already know, we provide rules for creating other items from the set. Third, we stipulate that the only items that are permitted in the set are those that were made in this manner. A recursive rule for a sequence is a formula that explains how to move from one term in a sequence to the next. The variable typically serves as a symbol for the concept of number. In other words, takes on the values 1 for the first term, 2 for the second term, 3 for the third term, etc.
Learn more about recursive here:
https://brainly.com/question/17298888
#SPJ4
What kind of intermolecular forces act between two carbon disulfide molecules? Note: If there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force.
Two molecules of carbon disulfide are held together by nonpolar intermolecular interactions. The C-S bond is nonpolar because C and S have different electronegativities.
Two bond dipoles in opposite orientations in the linear structure of carbon disulfide balance out the dipole moments. Having the chemical symbol C and atomic number 6, carbon is an element with the meaning "coal" in Latin. It is nonmetallic and tetravalent, meaning that four of its atom's electron molecules can be used to create covalent chemical connections. The periodic table's group 14 is where it belongs. Only 0.025 percent of the crust of the Earth is made up of carbon. The tendency of an atom of a certain chemical element to draw shared electrons (or electron density) when forming a chemical connection is known as electronegativity and is represented by the symbol.
Learn more about molecules here
https://brainly.com/question/19556990
#SPJ4
CO₂
How to find the chemical or iupac name
Answer: Carbon oxide
Explanation:
Which of the following aqueous solutions has highest osmotic pressure at 25 degree Celsius?
A. glucose
B. urea
C. CaCl2
D. KCl
C. CaCl2 following aqueous solutions has highest osmotic pressure at 25 degree Celsius
How is osmotic pressure determined?Temperature and concentration both have an impact on osmotic pressure. Temperature and solute concentration both have an impact on how much pressure is generated when water moves through a membrane. Osmotic pressure rises with temperature and concentration.
By controlling the quantities of electrolytes present in the three main fluids of blood plasma, extracellular fluid, and intracellular fluid, mammalian systems have developed to control osmotic pressure. The volume of these fluid compartments may fluctuate as a result of water movement caused by osmotic pressure across membranes.
learn more about osmotic pressure refer
https://brainly.com/question/25904085
#SPJ4
Classify each of the following diatomic species as ionic, polar covalent or nonpolar covalent. Bra CsBr NaCl Cao HCI 02 KE HBr
The classification of each of the following diatomic species as ionic, polar covalent, or nonpolar covalent is given below:
Br₂ - nonpolar covalentCsBr - ionicNaCl - ionicCaO - ionicHCl - polar covalentO₂ - nonpolar covalentKF - ionicHBr - polar covalentWhat are diatomic species?Diatomic species are species that are composed of two atoms alone which may be the same or different atoms.
When the two atoms of a diatomic species are of the same element, the species formed is a molecule of the element.
When the two atoms of a diatomic species are of different elements, the species formed is a molecule of a compound.
The nature of the given diatomic species is determined by the atoms present in the diatomic species.
If the atoms have similar electronegativities, a non-polar covalent species are formed.
If the atoms have different electronegativities, polar covalent species or ionic species are formed.
Learn more about covalent and ionic species at: https://brainly.com/question/861309
#SPJ1
what happens to acid when heated
Answer:
What happens to acid when heated? When heated, the pure 100% acid loses sulfur trioxide gas, SO3, until a constant-boiling solution, or azeotrope, containing about 98.5% H2SO4 is formed at 337°C. Hot concentrated sulfuric acid reacts with most metals and with several nonmetals, e.g., sulfur and carbon.
Explanation:
if deficient, which of the following minerals would have the least affect on bone health?
Calcium plays a crucial role in affecting a bone health, and if chloride is present in deficient amount then it will have least effect on bone health.
Bone fitness as a public fitness trouble with an emphasis on prevention and early intervention to sell robust bones and save you fractures and their consequences. Vitamin D facilitates the frame take in and system calcium. Together, those vitamins are the cornerstone of healthful bones. Poor diet, low in nutrients and calcium. Changes in hormones (from smoking or menopause) Age. Medical situations like rheumatoid arthritis, persistent kidney disease, overactive parathyroid gland or celiac sprue.
To learn more about bones check the link below:
https://brainly.com/question/412179
#SPJ4
how much heat, in kj, is required to warm 10.0 g of ice, initially at -10.0 degrees celsius, to steam at 110 degrees celsius?
Qt = 4.719kJ heat, is required to warm 10.0 g of ice, initially at -10.0 degrees Celsius, to steam at 110 degrees celsius. The heat capacity of ice is, c = 2.09 J/g C.
The mass of ice is, m = 10.0 g.
The initial temperature is, T = - 10 degree Celsius.
The final temperature is, T' = 110.0 degree Celsius.
The heat capacity of ice is, c = 2.09 J/g C.
The heat capacity of steam is, c' = 2.01 J/g C.
When ice absorbs heat, the conversion takes place from ice to water (liquid) and from the liquid to steam at 110 degree Celsius. So,
The amount of heat absorbed is given as,
Q = m[c(T' - T) + c'T']
Q = 10[2.09(110-(-10)+(2.01*110)]
Q = 4719J
Convert in kJ as,
Q = 4719/1000
Q = 4.719 kJ
Thus, we can conclude that the amount of heat required to warm the ice is 4.719 kJ.
Learn more about steam here
https://brainly.com/question/15447025
#SPJ4
The complete question is -
How much heat (in kJ) is required to warm 10.0 g of ice, initially at −10.0 °C, to steam at 110.0 °C? The heat capacity of ice is 2.09 J/g · °C, and that of steam is 2.01 J/g °C.
Select all the intermolecular forces associated With NaCl? a)Ion-dipole b) London Disperson c)H-bonding d)Dipole-dipole
the intermolecular forces associated With NaCl Is option (a) )Ion-dipole.
Ion-ion forces: Intermolecular force between two ions with diametrically opposed charges. like NaCl.
In solutions when an ionic chemical is dissolved into a polar solvent, such that of a solution of table salt (NaCl) in water, ion-dipole forces are at play. Note that because they include two distinct species, these must be solutions and not pure substances (an ion and a polar molecule). Intermolecular forces may be classified into four categories: dispersion, dipole-dipole, hydrogen bonding, and ion-dipole. Ion-dipole interaction is the most important and powerful intermolecular force that exists between sodium chloride (NaCl) and carbon monoxide (CO) It lacks both hydrogen bond acceptors and donors (hydrogens bound to O, N, or F) (O, N or F). Therefore, it is unable to establish hydrogen bonds with water. It cannot be solved at all.
To learn more about ionic please click on below link
https://brainly.com/question/14614762
#SPJ4
assign an iupac name for the following compound
The IUPAC name for the given compound is 4-formyl-2-oxocyclohexane-1-carboxylic acid. (Option B)
In chemical nomenclature, the IUPAC name or the nomenclature of organic chemistry refers to a method of naming organic chemical compounds based on the recommendation of the International Union of Pure and Applied Chemistry. It is published in the Nomenclature of Organic Chemistry. IUPAC name is the naming of a molecule's longest chain of carbons which are connected by single bonds (whether in a continuous chain or in a ring). All deviations, either multiple bonds or atoms other than carbon and hydrogen, are indicated by prefixes or suffixes according to a specific set of priorities. The IUPAC name for the given compound is 4-formyl-2-oxocyclohexane-1-carboxylic acid as the acyclic ring is directly attached to the carbon containing the functional group, the carbon atom of the functional group is not included in the parent name of the alicyclic ring.
Note: The question is incomplete as it is missing options which are A) 2, 4-dioxocyclohexane- 1-carboxylic acid B) 4-formyl-2-oxocyclohexane-1-carboxylic acid C) 2,4-dioxocyclohexanoic acid D) 2-oxo cyclohexane-1,4-dicarboxylic acid.
Learn more about IUPAC name:
https://brainly.com/question/28872356
#SPJ4
31. Applying Concepts Element Q forms
compounds with element X and with element Z.
Write the formulas for these two compounds.
formula be for these two compounds
—HELP!!! ASAP
Acetylsalicylic acid, better known as aspirin, has the Lewis structure (a) What are the approximate values of the bond angles labeled 1, 2, and 3? (b) What hybrid orbitals are used about the central atom of each of these angles? (c) How many σ bonds are in the molecule?
a) Approximate values of the bond angles labeled is 2
b) 120 degree sp2 hybridized carbon, 109.5 degree sp3 hybridized oxygen c) total 21 sigma bonds.
Sigma bonds are the strongest kind of covalent chemical bonding in chemistry. They are made when atomic orbitals directly overlap one another, according to. Using symmetry group terminology and tools, sigma bonding is most easily explained for diatomic molecules. According to this formal method, rotation about the bond axis is symmetrical for a -bond. S+s, pz+pz, s+pz, and dz2+dz2 are examples of common sigma bonds according to this description (where z is defined as the axis of the bond or the internuclear axis). Molecular orbitals (MO) with the same symmetry are also predicted to mix or hybridize according to quantum theory. The wavefunctions of the molecular orbitals s+s and pz+pz merge as a practical result of this mixing of diatomic molecules.
Learn more about sigma bonds here:
https://brainly.com/question/13818226
#SPJ4
