Therefore the concentration of NH3 is 30000mg/L.
What is density?
A material's density specifies the density of that material in a given region. The mass per unit volume of a material is defined as its density. The density of matter is a measurement of how tightly stuff is packed together. It is a specific physical property of anything. The density principle was established by Archimedes, a Greek scientist. Calculating density is simple if you know the formula and understand the units. The symbol denotes density, which can also be represented by the letter D.
Understanding density is critical since it affects many aspects of life. In physics, density is something that affects which clouds float high in the sky and which sink lower. The motions of gases in the atmosphere are determined by density when one material rises over another. It has an impact on what sinks and what floats in a body of water. So, what exactly does density imply? The definition of density is a measure of how dense matter is. Simply put, how much "things" can fit into a given space. The more "stuff" or substance crammed into a place, the denser it becomes.
Calculate the mass of NH3 in household ammonia as follow
[NH3] = weight of NH3 ( Density of water)
[NH3]= 30Kg/[tex]m^{3}[/tex]
[NH3] IN mg/L
Therefore the concentration of NH3 is 30000mg/L.
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Compare and contrast filtration and chromatography
On a solid media, chromatography requires solvent separation. Different boiling points are used in distillation. A liquid is removed through evaporation from a solution to leave a solid behind. Filtration separates different-sized particles.
What is chromatography ?Chromatography is a method used in laboratories to separate mixtures into their constituent parts. The combination is dissolved in a liquid solvent known as the mobile phase, which transports it through a system where a substance known as the stationary phase is fixed.
Chromatography paper is another name for filter paper. Paper for chromatography is entirely white. Chemical analysis filter paper, quality filter paper, ashless filter paper, air filter paper, engine oil filter paper, fuel filter paper, etc.
The basis for gel filtration chromatography is the distinct migration of dissolved solutes through gels with predetermined-sized holes.
Thus, A column of insoluble but highly hydrated polymers, such as dextran, agarose, or polyacrylamide, is used in gel filtering or gel-permeation chromatography.
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Five characteristics of a molecule that can be determined from a lewis structure.
The Lewis structure can be used to identify the following traits. Considering one,
H₃N + BF₃ ———> [H₃N—->BF₃]
what is a Lewis structure?The valence shell electrons of a molecule are depicted in a highly condensed manner in a Lewis structure. It serves as a visual representation of the electron arrangements surrounding specific atoms in molecules. In bonds involving two atoms, electrons are shown as lines or as "dots" respectively.
A molecule's Lewis structure reveals how many valence electrons are attached to each atom. The Lewis structure of a molecule can be used to infer a lot of significant information. These details include, among others;
Each atom in the molecule has a certain number of valence electrons attached to its valence shell.
The molecule's type of bonding
Whether the atoms in the molecule follow the octet rule or not
Potential resonance configurations that the molecule might have
whether or not atoms in the molecule have lone pairs of electrons.
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Calculate the amount of heat released when one bottle (250 g) of ethanol is cooled from 45°C to 40°C. The specific heat of ethanol is 2.45 J/g°C
2054 J
-1533 J
-3063 J
4063 J
Answer:
C) -3063J
Explanation:
multiply m, c, and change in T
How does the enthalpy change of this reaction and your knowledge of molecular structure inform your understanding of why excess oxalate ions in the body can lead to kidney stones but excess chloride ions will not?.
The heat that enters or leaves the system is determined by the enthalpy change that takes place during a reaction. whether there is a rise in the system's enthalpy.
What does urine containing calcium oxalate mean?Kidney stones are frequently linked to calcium oxalate crystals, which can develop when the body has an excessive amount of oxalate (found in foods like spinach). Severe groin or stomach discomfort, nausea, fever, and problems urinating are all signs of kidney stones.
Does calcium promote absorption of oxalate?In healthy adults who consume 800 mg of calcium per day, two to twenty percent of the oxalate they consume is absorbed in their digestive tracts. The most effective moderator of oxalate absorption is calcium.
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draw the lewis structure of co2. what is the shape of the molecule? is it polar or nonpolar? what types of molecules would you expect to dissolve in co2?
The structure of CO2 is linear as it has two oxygen atoms on both side of carbon, it nullifies the polar charge and makes it a nonpolar molecule.
According to Lewis structure we know that it denotes the number of electrons donated or shared to complete the octane rule (all atoms must have 8 electrons in the outer shell).
Lewis's structure gives us the idea of whether a compound is basic or acidic in nature in terms of the electrons shared. In the given condition, for CO2 the Lewis structure is shown below.
If we draw the Lewis structure for CO2, we will get a linear structure as it would contain two oxygen atoms on both side of carbon. As it contains two carbon atoms, it shares a covalent bond with carbon.
As there are two oxygen atoms on both side of carbon and being equally electronegative it cancels out the charges and makes it a nonpolar molecule.
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The percent by mass of calcium in the compound calcium sulfate (caso4) is approximately.
Calcium has approximately 20.439% of mass in calcium sulphate compound.
Calcium sulphate is the inorganic compound with the formula CaSO4 and related hydrates. in the form of anhydrite, it is used as a dessicant. One particular hydrate is better known as plaster of paris and another occurs naturallly as the mineral gypsum. It has many uses in the industry. All forms are white solids that are poorly soluble in water. Calcium sulfate causes permanent hardness in water.
The compounds exist in three level of hydration corresponding to different crystallographic structure and to minerals.
a. CaSO4 is an anhydrous state. The structure is related to that of zirconium orthosilicate.
b. CaSO4.H2O Dihydrate
c. CaSO4.1/2H2O Hemihydrate.
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The antacid component of tumsris calcium carbonate. Assume tumsris 40. 0 percent caco3by mass. If we have 400. Mg of tumsrhow many ml of 0. 100 m hcl can we neutralize? express your answer in ml.
The amount of 0.100 M HCl that 400 mg of Tumsr can neutralize, measured in mL, is 32 mL.
What exactly is stoichiometry?Chemical A chemical reaction's reactants and products are studied quantitatively in stoichiometry. The Greek words "stoikhein" (which means element) and "metron" (which means measure) are the roots of the English word "stoichiometry."
CaCO3 makes up 40 percent of Tumsr. As a result, 400 mg of Tumsr will have
400 x 40/100 = 160 mg CaCO3
According to the reaction's equation:
CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂(carbondioxide)
Mole ratio = 1:2
Mole of CaCO₃ = 0.16g/100 = 0.0016 moles
Equivalent mole of HCl = 0.0016 x 2 = 0.0032 moles
Volume of 0.0032 mole= 0.0032/0.1
Volume of 0.0032 mole = 32 ml.
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What volume of 0. 220 m ethanol solution contains each of the following number of moles of ethanol?.
Each of the following number of moles of ethanol is present in a 13.2 mL volume of 0. 220 m ethanol solution.
Why do we do it?
The notion is that the number of moles of solute contained in 1L=10^3mL of solution may be calculated from the molarity of the solution. In our situation, a solution of ethanol with a concentration of 0.220 M will have 0.220 moles of ethanol per 10^3 mL of solution. This suggests that 2.90 10 3 moles of ethanol will be present in the mixture of 2.90 ×10^3 moles of ethanol in a 10^3 mL solution and 0.22 moles of ethanol in a 13.2 mL solution.
Describe ethanol.A renewable fuel called ethanol is produced from corn and other plant components. The United States uses ethanol extensively, and more than 98% of gasoline contains some ethanol.
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4.
What does the law of conservation of matter state?
A Matter will only combine with other types of matter in specific ratios that
never change.
B Matter can be created or destroyed, but can never change from one form to
another.
C Matter can't be created or destroyed but can change from one form to
another.
D Matter can be created, but it can never be destroyed.
Answer:
Explanation:
The law of conservation of matter state that matter can't be created or destroyed but can change from one form to another. Option C is correct.
What is the law of conservation of matter?
According to the principle of conservation of matter, although matter cannot be generated or destroyed.
The law of conservation of matter state that matter can't be created or destroyed but can change from one form to another.
Hence option C is correct.
Answer:
c
Explanation:
When the rate of reaction of bleach and dye are studied which reactant is in excess?.
In the reaction between bleach and dye, the bleach was excess relative to the dye.
what are the properties of bleach ?bleach is used for bleaching of cotton and linen in textile industry and also used as bleaching wood pulp in paper industry, bleaching washed clothes in laundry.
It is the main constituent of a solution which constitute ~3-6% sodium hypochlorite (NaOCl), is a mixed with small amounts of sodium hydroxide, hydrogen peroxide, and calcium hypochlorite.
Chlorine bleach is a type of base and especially good at removing stains and dyes.
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A wave's frequency is 5.00x10^14 s-1.
What is the wavelength?
The wavelength of the wave having a frequency of 5.00×10¹⁴ s⁻¹ is 6×10⁻⁷ m
How do I determine the wavelength?We know that the velocity is related to wavelength and frequency according to the following formula:
Velocity (v) = wavelength (λ) × frequency (f)
v = λf
Thus, with the above formula, we can determine the wavelength. Details below:
Frequency (f) = 5.00×10¹⁴ s⁻¹Speed of wave (v) of = 3×10⁸ m/sWavelength (λ) = ?Velocity (v) = wavelength (λ) × frequency (f)
3×10⁸ = wavelength × 5.00×10¹⁴
Divide both sides by 5.00×10¹⁴
Wavelength = 3×10⁸ / 5.00×10¹⁴
Wavelength = 6×10⁻⁷ m
Therforee, the wavelength is 6×10⁻⁷ m
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When three molecules of carbon dioxide (co2) react with three molecules of rubp during the calvin cycle, six molecules of the sugar g3p are produced. One g3p molecule exits the calvin cycle during phase 2. What happens to the other five g3p molecules?.
Three molecules of ribulose-1,5-biphosphate are generated from the remaining five G3P molecules.
What is Calvin cycle?Calvin cycle, also known as the photosynthesis's light-independent phase. In this stage, glucose is synthesized using the NADPH and ATP created during the light stage.
There are three primary phases of the Calvin cycle: carbon fixation, reduction, and regeneration.
In the process of fixing carbon, ribulose-1,5-biphosphate, a CO2 acceptor, combines with three molecules of CO2 to produce two molecules of 3-phosphoglycerate. This reaction is catalyzed by RUBISCO (PGA)
PGA is reduced by NADPH during the reduction stage, and ATP phosphorylates PGA to generate six molecules of glyceraldehyde-3-phosphate (G3P). According to the answer, while the other five molecules of G3P continue in the cycle, one leaves it to be used to create glucose.
The initial five molecules of G3P are rearranged into three molecules of the five-carbon CO2 acceptor known as ribulose-1,5-biphosphate during the third stage, dubbed the regeneration stage (RUBP).
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A bottling plant has 126,515 bottles with a capacity of 335 mL, 108,500 caps and 48,775L of beverages
And let us address the bottle capacity....and this is given by the product. We know that, 1ml= 10⁻³ L
126,515 × 0.335 L = 42382 .525 L and it is the the bottle capacity.
The number of bottles you need is given by
33500/ 0.355= 9436 Bottles and there are enough caps . The limiting quantity is the beverage and there are reserve bottles and caps for the breakages and the failed seals that will undoubtedly occur.
Having brewed beer, ginger beer, or other beverages at home (and this is something that it is easy to do, and you get VERY good results). Most of the time, the bottles are the finite resource. You must gather, carefully clean, and disinfect each bottle.
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The statement from which investigation is an example of repetition?
A. Investigation 1
B. Investigation 2
C. Investigation 3
D. Investigation 4
Option D. Investigation 4, represents the statement from which investigation is an example of repetition.
Each is a repeated run of your combination of things and stages. Repetition does the replica runs consecutively even as replication does more than one run but throughout identical but special experimental runs. The investigation is a radical search for data, particularly the ones which are hidden or need to be sorted out in a complicated state of affairs. The intention of the research is commonly to decide how or why something befell.
Experimental investigations contain a procedure in which a "honest test" is designed and variables are actively manipulated, managed, and measured which allows you to collect proof to aid or refute a causal courting.
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Disclaimer:- your question is incomplete, please see below for the complete question.
Based on the parameters set forth in your lab procedure, what is the ph you should observe when you added the hcl to water?.
Acid has a pH below 7 while water has a pH of 7. A strong acid with a pH of roughly 3, HCl is. Water gets more acidic and loses pH in the range of 4-5 when HCl is added to it.
What is pH?A substance's pH is a gauge of how basic or acidic it is. It is a measurement of the amount of H+ present in the solution. It is equivalent to the negative logarithm of the concentration of H+ ions mathematically.
A solution is acidic if its pH value is less than 7, and basic if it is greater than 7. Acids have a lower pH because they contain more H+ ions. Strong acid hydrochloric acid has a pH between 2 and 3.
Water has no charge. Water becomes acidic in pH if any acid is introduced. Therefore, if HCl is given to water, the pH of the water will change to 3-5 depending on the acid content.
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Write a balanced chemical equation that describes an acid-base reaction that would allow you to determine the moles of aspirin present in a sample.
C9H8O4 + NaOH = C9H7O4Na + H2O, which is the same reaction, is a balanced chemical equation that describes an acid-base reaction that enables you to calculate the moles of aspirin contained in a sample.
Describe aspirin.Acetylsalicylic acid is simply known by its common name, aspirin. It is a benzoic acid that has had an acylated alcohol (really a phenol) function substituted in the ortho position. As a result, there are two possible reactions that might happen when aspirin and NaOH are combined: the quicker reaction is the deprotonation of the acid function, which results in sodium acetylsalicylate. In fact, several aspirin formulations contain this ingredient.
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explain the sequence of events that resulted in the end of reconstruction
The sequence of events that resulted in the end of reconstruction include:
Republicans lost powerSouthern Democrats agreed to Hayes becoming president if he would end ReconstructionHayes removed federal troops and Reconstruction ended.What is the reconstruction?The Reconstruction era was a period in American history following the American Civil War (1861–1865) and lasting until approximately the Compromise of 1877—when the last federal troops were withdrawn from the South—where attempts were made to deal with the problems of readmitting the eleven states that had seceded from the Union and fought against it in the Civil War, and to redress the political, social, and economic legacies of slavery.
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Calcium and Hydroxide combine to produce:
Electron Dot Formula of compound
Compound formula
Compound name
Calcium hydroxide is created when calcium and oxygen mix.
Calcium Hydroxide in the Electron Dot formula:
Ca is a compound (OH)
Name of second compound is Calcium Hydroxide.
The Lewis structure is what?A Lewis structure is a very condensed representation of the electrons in the valence shell of a molecule. It is used to show the electron arrangements around specific atoms in compounds. The electrons are shown as "dots" or as a line when two atoms are bound together. To reach the "ideal" electron configuration, the octet rule and formal charges must be met.
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Explain why a solution that is prepared by dissolving 0. 1 mol each of kh2po4 and k3po4 in 1 l of water is not a buffer solution.
The term "buffer" refers to a solution's capacity to withstand pH fluctuations, even when additional bases or acids are introduced. Buffer has the ability to neutralize any acids or bases supplied to the system in order to stabilize it.
Why does it act as a buffer?Equivalent molar ratios of KH2PO4 and K2HPO4 when combined with water result in the creation of buffer solution. A particular kind of dibasic salt is dipotassium phosphate. K2HPO4 is the solution that is created when hydrogen ions are added to K3PO4, and it functions as a conjugate acid. H2PO4 acts as a weak acid and HPO2 acts as a conjugate base of a in this system of buffers diluted acid . As a result, this KH2PO4 and K2HPO4 solution in water serves as a buffer.
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The relationship between absorbance of light by a solution and its concentration should be choose. So that when concentration increases, absorbance choose. .
Explanation:
Relation between concentration and absorbance: Absorbance is directly proportional to the concentration of the substance. The higher the concentration, the higher its absorbance.
The relationship between absorbance of light by a solution and its concentration should be Linear
b) Linear
so that when concentration increases, absorbance Increases
c) Increases
The Beer-Lambert Law, also known as the Beer-Lambert-Bouguer Law, describes the relationship between the absorbance of light by a solution and the concentration of the absorbing solute in that solution. This law is fundamental in spectroscopy and is used to quantify the concentration of a solute in a solution.
The Beer-Lambert Law is expressed as:
A = ε * c * l
Where:
A is the absorbance of the solution (unitless),
ε is the molar absorptivity or molar extinction coefficient (a constant specific to the solute and the wavelength of light),
c is the concentration of the solute in the solution (usually in mol/L or M),
l is the path length of the light through the solution (usually in centimeters).
The relationship between absorbance of light by a solution and its concentration should be: Linear
so that when concentration increases, absorbance: Increases
In a linear relationship, the absorbance of light by a solution increases in direct proportion to the concentration of the solute in the solution. As the concentration of the solute increases, more light is absorbed by the solution, leading to a higher absorbance value.
Therefore, when the concentration of a solution increases, the absorbance of light by that solution also increases in a linear fashion.
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The complete question is:
The relationship between absorbance of light by a solution and its concentration should be ___
Choose:
a) Exponential
b) Linear
c) Inverse
so that when concentration increases, absorbance ___
Choose:
a) Does Not Change
b) Decreases
c) Increases
write the equations that represent the first and second ionization steps for selenous acid (h2seo3) in water.
First ionization reaction: -
H₂SeO₄(aq) + H₂O(l) → H₃O⁺(aq) + HSeO₄⁻(aq)
Second ionization reaction: -
HSeO₄⁻(aq) + H₂O(l) → H₃O⁺(aq) + SeO₄⁻²(aq)
Selenic acid is a diprotic and a strong acid with the formula: H₂SeO₄.
When it reacts to water, it releases two protons in two ionizations.
Finally, it gives hydronium to the medium.
H₂SeO₄(aq) + H₂O(l) → H₃O⁺(aq) + HSeO₄⁻(aq)
HSeO₄⁻(aq) + H₂O(l) → H₃O⁺(aq) + SeO₄⁻²(aq)
According to the given condition the selenous acid is a diprotic acid (two hydrogen ions) we can identify two ionization reactions, the first one, showing up the dissociation of the first hydrogen to yield hydrogen selenic ions and the second one, showing up the dissociation of the hydrogen sulfate ions to hydrogen ions and selenic ions.
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16. a domain is atomic if elements of the domain is considered units. a. different b. indivisible c. constant d. divisible
A domain is atomic if elements of the domain is considered indivisible units that is cannot be divided in parts.
What is domain and at what condition is the domain is atomic specifically?A domain is atomic only when each nonzero and non- unit factors are irreducible and non dividing.Here the question is asked for when a domain is atomic and when a domain can not be atomic.And when the elements of the domain is considered units and which unit for the domain to be remain atomic.If every nonzero and along with non unit factor can be expressed in the form of product of irreducible elements then domain is atomic.Hence the answer would be indivisible , that is a domain is atomic if elements of the domain is considered indivisible units.Not constant , not divisible but only when indivisible then only domain will be atomic.To know more about domain visit:
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The map below shows Mach's route to the pool. Mich left his house and walked to Javier's house. It took him 12 minutes. Then, Mitch and Javier walked to Andrew's house. It took them 6 minutes.
Finally the 3 boys walked to the pool in 2 minutes. What was Mach's average speed for his entire journey?
100%
A
B
Andrew
C
D
100 m
500 m
7 m/min
60 min
Javier
800 m
Which explains the change in ionization energy that occurs between removing the first and second electrons from an atom?
The ionization energy decreases because the ratio of the protons to electrons increases.
The ionization energy increases because the ratio of the protons to electrons increases.
The ionization energy decreases because the ratio of the protons to electrons decreases.
The ionization energy increases because the ratio of the protons to electrons decreases.
Option B. The ionization energy increases because the ratio of protons to electrons increases. explains the change in ionization energy that occurs between removing the first and second electrons from an atom.
The ionization energy is the degree of the functionality of an element to go into chemical reactions requiring ion formation or donation of electrons. it is also usually associated with the nature of the chemical bonding within the compounds shaped by the factors. See additionally binding strength; electron affinity.
Ionization energy is superb for neutral atoms, meaning that ionization is an endothermic system. more or less speaking, the nearer the outermost electrons are to the nucleus of the atom, the higher the atom's ionization electricity. In physics, ionization power is typically expressed in electronvolts (eV) or joules (J).
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If 3. 0 g of nh3 reacts with 5. 0 g of hcl, what is the limiting reactant? nh3(g) + hcl(g) --> nh4cl(s).
HCl (g)+ NH
3
(g) → NH
4
Cl (s)
Which of the noble gases should show the greatest deviation from the ideal gas law at high pressures?.
Xenon a noble gas shows the greatest deviation from the ideal gas law at high pressures.
Real gases behave very differently from ideal gases at high pressures or low temperatures. It's useful to be aware that the ideal gas law considers the size of gas molecules to be minimal or nonexistent.
Due to its size and the fact that it is the largest of the group, Xe is predicted to deviate from the ideal gas the most under conditions of high pressure or low temperature.
Van der Waal forces come into play as gaseous atoms or molecules grow closer to one another under high pressure and low temperature. As a result, atoms or molecules begin to attract one another. As a result, gas behaves the furthest from its ideal state. While in an ideal world there would be no intermolecular forces of attraction, we can assume that gases do not attract one another.
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Would a precipitate form if a solution of calcium acetate were mixed with a solution of sodium phosphate? if so, what precipitate would form?.
Precipitate Ca₃(PO₄)₂ would be created by mixing sodium phosphate with calcium acetate.
What is precipitation reaction?When dissolved compounds react, they might produce one or more solid products in a process known as precipitation. Double displacement, double replacement, or metathesis reactions are some names for several of these processes, which frequently include the exchange of ions between ionic compounds in aqueous solutions.
Two soluble salts react to form precipitates, an insoluble salt.
The following equation illustrates the reaction between calcium acetate and sodium phosphate:
3Ca(C₂H₃O₂)₂ + 2Na₃PO₄ → Ca₃(PO₄)₂ +6NaC₂H₃O₂
The reaction produces Ca3(PO4)2, which is an insoluble salt and a precipitate.
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When parts of the upper mantle collide with each other, the force causes changes on the surface like volcanoes and fractures. Why does the collision not impact the asthenosphere?
When parts of the upper mantle collide with each other, the force causes changes on the surface like volcanoes and fractures the collision not impact the asthenosphere because asthenosphere is the plastic and brittle
The asthenosphere is the unique to our planet and earth is the only planet in the solar system with an asthenosphere and if planet doesn't have water this means it doesn't have an asthenosphere and the asthenosphere play an important role in plate tectonic movement and asthenosphere is situated underneath the solid lithosphere and the asthenosphere is ductile and deform easily compared to the overlying lithosphere so the collision not impact the asthenosphere because asthenosphere is the plastic and brittle
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a 1.00 g sample of potassium bicarbonate is decomposed by heating. part a if the resulting potassium carbonate weighs 0.710 g and the calculated yield is 0.690 g , what is the percent yield? general exercises
The percent yield will be 103 %
Mass of potassium bicarbonate = 1.00 g
Molar mass of potassium bicarbonate = 100.115 g/mol
Mass of potassium carbonate = 0.710 g
Molar mass of potassium bicarbonate = 138.205 g/mol
Calculated yield = 0.690 g
Percent yield = ?
Calculated yield is given, if not you can find out by following steps:
Write the balanced chemical equation
2KHCO₃ → K₂CO₃ + H₂O + CO₂
Hence 2 moles of KHCO₃ decompose to produce 1 mole of K₂CO₃
This means that 2 × 100.115 g of KHCO₃ will produce 138.205 g of K₂CO₃
Calculate for 1 g = 138.205 / 200.23
Calculate for 1 g = 0.690 g
This means that 1 g of KHCO₃ will produce 0.690 g of K₂CO₃
Now calculate % yield
% yield = (actual yield / calculated yield)
% yield = (0.710 / 0.690) 100
% yield = 1.029 * 100
% yield = 103 %
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when barium chloride is allowed to react with silver nitrate to give barium nitrate and silver chloride, what are the coefficients for the balanced equation and what type of reaction is this?
A white solid precipitate is created when silver nitrate (AgNo3) and barium chloride (BaCl2) are combined.
What distinguishes a balanced equation from an ionic equation?The main distinction between a balanced equation and a net ionic equation is that a balanced equation displays all of the system's reactions together, but a net ionic equation just displays the net reaction that followed the conclusion of a given reaction.
Similar charges repel one another (positive to positive or negative to negative). A neutral item is one that typically has an even mix of positive and negative charges. Negative and positive charges in an item must balance out for static electricity to occur.
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