Lithium and potassium have similar chemical properties because they both have the same number of valence electrons.
Give a brief idea about valence electrons.A valence electron is an electron that is part of an atom's outer shell and can take part in the synthesis of a chemical bond if the outer shell is open. Each atom in the bond contributes one valence electron to create a shared pair in a single covalent bond.
The chemical properties of an element, such as its valence—whether it can connect with other elements and, if so, how quickly and with how many—may be affected by the existence of valence electrons. In this approach, the electrical arrangement of an element greatly influences its reactivity. A valence electron can only be found in the outermost electron shell of a main-group element, but it can also be found in an inner electron shell of a transition metal.
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write the balanced equation for the neutralization reaction between h2so4 and koh in aqueous solution.
Balanced equation for the neutralization reaction between H₂SO₄ and KOH in an aqueous solution will be:
H₂SO₄ + 2KOH K₂SO₄ + 2H₂O
Sulphuric acid reacts with potassium hydroxide, to produce potassium sulfate and water. It is an acid-base reaction in which an acid (H₂SO₄) reacts with a base (KOH) to produce a salt (K₂SO₄) and water.
Balance the chemical reaction:
To balance the chemical equation first write down the reaction which is;
H₂SO₄ + KOH → K₂SO₄ + H₂O
Total number of hydrogen on reactants side = 3
Total number of hydrogen on product side = 2
Total number of oxygen on reactants side = 5
Total number of oxygen on product side = 5
Total number of potassium on reactants side = 1
Total number of potassium on reactants side = 2
Total number of sulfur on reactants side = 1
Total number of sulfur on product side = 1
As you can see the number of hydrogen and potassium are not the same in the equation, so to balance this we add 2 with KOH and H₂O
Balanced equation
H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O
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The modern periodic table arranges the elements according to their atomic number and shared properties. If you wanted to predict which elements are explosive how would you organize the periodic table?.
Lower explosive elements should go on the left side of the periodic table, while high explosive elements go on the right.
Why is called the periodic table?The arrangement of the elements is why it is known as the periodic table. You'll see that they are arranged in rows and columns. Periods and Groups are the names given to the horizontal rows that go from left to right and up to down, respectively.
The periodic table will be arranged in the same way as the modern periodic table, starting with the least explosive elements at the bottom and moving up to the most explosive ones on the right. Elements with lower atomic numbers will be on the left side of the periodic table, and those with higher atomic numbers will be on the right side.
All known elements are grouped together in the periodic table of elements into groups with related properties.
As a result, the periodic table is arranged with lesser explosive elements on the left and high explosive elements on the right.
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What is most similar to ATP?.
The RNA molecule resembles an ATP molecule structurally, according to the claim made.
How do molecules differ from atoms?Single, neutral particles make up an atom. As neutral objects consisting with more than two atoms joined together, molecules are. A positively charged or negatively charged molecule is called an ion.
Is gold a molecule or an atom?The nucleus of the atom of gold has 79 protons. The number of electrons and protons in every neutral (charge-free) atom is the same. Although neutrons vary, they are often equal to or 1.5 times as numerous as protons (in smaller atoms) (larger atoms).
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Explain why atoms can have different isotopes. In other words, how is it that helium can exist in three different forms?
Answer:
The number of protons, massive, positively charged nuclear particles defines the identity of the nucleus.
Woah. Vocabulary here.
An isotope is any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic weight. There are 275 isotopes of the 81 stable elements, in addition to over 800 radioactive isotopes, and every element has known isotopic forms. Isotopes of a single element possess almost identical properties.
Helium is usually defined as an inert, gaseous element present in the sun's atmosphere and in natural gas, and also occurring as a radioactive decomposition product, used as a substitute for flammable gases in dirigible balloons. Symbol: He; atomic weight: 4.0026; atomic number: 2; density: 0.1785 g/l at 0 °C and 760 mm pressure.
Explanation:
The number of protons, massive, positively charged nuclear particles, gives Z, the atomic number, which defines the identity of the nucleus.
Z=1, "hydrogen",Z=2, "helium",Z=3, "lithium",...........Z=21, "scandium".
The nucleus may contain various numbers of neutrons, massive, neutrally charged nuclear particles, which gives to the existence of isotopes.
For hydrogen, [tex]Z=1[/tex] by defintion. That is there is a proton in all hydrogen nuclei. Some hydrogen nuclei contain 1 neutron to give the deuterium isotope, [tex]^2H[/tex] ; an even smaller number of hydrogen nuclei contain 2 neutrons, to give the tritium isotope, [tex]^3H[/tex] ; Most atoms have a number of isotopes in different proportions.
To answer your question, the helium atom has [tex]Z=2[/tex] ; i.e. there are 2 nuclear protons, which is what defines the atom as helium. The most common isotope of helium is [tex]^4He.^3He[/tex] and [tex]^5He[/tex] re known with vanishingly small abundances, and half lives.
This video discusses how to determine the number of subatomic particles in C-12 , C-14 , H-1 , H-2 and H-3 .
Thanks.
In most cells, there are electrochemical gradients of many ions across the plasma membrane even though there are usually only one or two electrogenic pumps present in the membrane. The gradients of the other ions are most likely accounted for by.
The gradients of the other ions are most likely accounted for by Cotransport protein. The movement of the majority of the ions takes place by the phenomenon of electrochemical gradients.
electrochemical gradients of which some are found on the surface of the membrane and function as electrogenic pumps. While the gradients of some of the ions are mostly accounted for by the co - transport proteins, as these proteins take part in the movement of ions or molecule through a plasma membrane that involves concentration gradient based on the kind of molecules and movement.
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Even if all burning of fossil fuels was stopped today, why will temperatures continue to increase?.
When the world stops using fossil fuels, some of these toxins will vanish, taking their little masking impact with them.
In the medium run, the researchers believe that global temperatures will rise somewhat when all emissions are stopped.
How does the use of fossil fuels effect global warming?When fossil fuels are burnt, significant volumes of carbon dioxide, a greenhouse gas, are released into the atmosphere. Greenhouse gases trap heat in our atmosphere, which contributes to global warming. Already, the average global temperature has risen by 1 degree Celsius.
With the impacts of anthropogenic climate change become more severe, it is evident that reversing them is preferable to delaying them. If we stopped using fossil fuels today, warming would undoubtedly slow, but greenhouse gas emissions would continue to rise.
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a 3.48 mol sample of kr has a volume of 409 ml. how many moles of kr are in a 2.93 l sample at the same temperature and pressure?
344 moles of Kr are in a 2.93 l sample at the same temperature and pressure.
Define Avogadro law.According to Avogadro's law, equal volumes of various gases each contain an equal number of molecules at the same temperature and pressure. Under the presumption of an ideal gas, this empirical relation can be deduced from the kinetic theory of gases. For actual gases, the law is roughly applicable when temperatures and pressures are both low enough.
The concept was first proposed in 1811 by Amedeo Avogadro, a longtime professor of higher physics at the University of Turin, but it wasn't until Stanislao Cannizzaro built a rational system of chemistry on its foundation in 1858 that it received widespread acceptance.
At constant temperature and pressure volume is proportional to number of moles,
3.48 mol / 409 ml = 2.93 mols / x m
x = 344 mls
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which of these are factors that will affect the solubility of a solid in water.select all that apply.group of answer choicespartial pressure of the solventtemperaturepartial pressure of the soluteintermolecular forces
Temperature and intermolecular forces are factors that will affect the solubility of a solid in water.
What is solubility?
The ability of a material, the solute, to combine with another substance, the solvent, is known as solubility in chemistry. The concentration of the solute in a saturated solution—a solution in which no more solute can be dissolved—is typically used to gauge the degree of a substance's solubility in a particular solvent.
What factors affect solubility?
The two compounds are said to be at the solubility equilibrium at this time. Four parameters — temperature, pressure, polarity, and molecular size — have an impact on solubility. Most substances dissolved in liquid water become more soluble as the temperature rises.
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1 25ml sample of 0.25m potassium carbonate solution is added to a 30 ml of a 0.4m barium nitrate solution. what is the concnetration of the excess metal ion after hte prceipiaton reaction is complete
After the precipitation reaction is finished, the concentration of the excess metal ion is 0.1045 M of a 25 ml sample of 0.25 m potassium carbonate solution is added to a 30 ml of a 0.4 m barium nitrate solution.
We must ascertain the amount of surplus metal ions present once the precipitation reaction is finished, according to the concentration.
The balanced chemical equation for the reaction will be written first.
K2CO3 + Ba(NO3) is the reaction's balanced concentration.
2 BaCO3 plus 2KNO3
Accordingly, 1 mole of potassium carbonate is necessary for 1 mole of Ba(NO3) to totally react.
We will now calculate how many moles of each reactant are present.
Volume = 25.0 mL for potassium carbonate equals 0.025 L.
Concentration equals 0.25 M.
Utilizing the equation
Concentration times volume times number of moles There are 0.25 0.025 moles of K2CO3 in total.
There are 0.00625 moles of K2CO3 in total.
Volume for Ba(NO3)2 is 30.0 mL, or 0.03 L.
Concentration:0.40 M There are currently 0.40 0.03 moles of Ba(NO3)2.
After the precipitation reaction is finished, the concentration of the excess metal ion is 0.1045 M
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in a sample of germanium at room temperature (293 k), what fraction of the ge atoms must be replaced with donor atoms in order to increase the population of th conduction band by a factor of 3? assume that all donor atoms are ionized, and take the energy gap in ge to be 0.66 ev
A sample of germanium at ambient temperature has to have 4.2 ppm of donor atoms added in order to expand the population of the conduction band by a factor of 3.
When excited, electrons can move from the valence band into the band of electron orbitals known as the conduction band. The electrons have sufficient energy in these orbitals to travel freely throughout the substance. Electric current is produced by this movement of electrons.
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What is the concentration of an alcl3 solution if 150. Ml of the solution contains 250. Mg of cl- ion?.
Answer:
0.015 M
Explanation:
Therefore, the concentration of AlCl3 A l C l 3 comes out to be 0.015 M.
what is the pressure (in atmospheres) of the gas inside the container connected to an open-end, mercury-filled manometer as shown in the picture? (figure 1) the atmospheric pressure is 0.95 atm .
The pressure (in atmospheres) of the gas inside the container connected to an open-end, mercury-filled manometer is 1.19 atm
How do I determine the pressure of the gas?The pressure of a gas inside a container connected to an open-end manometer is given as:
Pressure of gas = Atmospheric presure + pressure due to height
Now, we shall determine the pressure of the gas as illustrated below:
Atmospheric pressure = 0.95 atmPressure due to height = 18 cmHg = 180 mmHg = 180 / 760 = 0.24 atmPresure of gas =?Pressure of gas = Atmospheric presure + pressure due to height
Pressure of gas = 0.95 + 0.24
Pressure of gas = 1.19 atm
Thus, the pressure of the gas is 1.19 atm
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Complete question:
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When a negatively charged beta particle is emitted by a radioactive nucleus, which change happens in the nucleus?.
In the case when there is a negatively charged beta particle so the number of nucleons decreased by one.
What are nucleons?In terms of chemistry and physics, a nucleon could be treated as a proton or neutron also considered as the component of the atomic nucleus. Here the no of nucleons in the nucleus should represent the atom's mass number.
So based on this, we can conclude that In the case when there is a negatively charged beta particle so the number of nucleons decreased by one.
What is the order of penetration between alpha, beta, and gamma rays?Alpha particles, beta particles, and gamma rays all penetrate in the following order: gamma rays > beta particles > alpha rays.
Describe beta emission.The process by which a beta particle transforms an unstable nucleus into a stable nucleus is known as beta emission.
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1 part, I don’t know if it right
Answer:
atomic number = 5
element is Boron
mass number = 9
Isotope name = Boron-9
Explanation:
Answer:
Explanation:
An element with a low ionization energy is more likely to form ______ during reactions, while elements with high ionization energies tend to form _____. Noble gases are excluded from this trend.
An element with a low ionization energy is more likely to form cations during reactions, while elements with high ionization energies tend to form anions. Noble gases are excluded from this trend.
Ionization energy may be defined as the minimum energy needed to remove the electrons which are loosely bounded in the outermost shell of an atom. It is also known as Ionization potential. Whenever an electron is removed it has its own ionization energy and the energy for each electron removed after the first electron is different. The unit of Ionization energy is Joules. Elements having low Ionization energy tend to loose electron quickly and they are highly reactive in nature and when an electron is lost positive charge is acquired on an atom, so cation is formed. Elements with high ionization energy do not loose electrons quickly and they are less reactive in nature, so extra energy is required to remove the electron which forms an anion.
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During aerobic respiration, h2o is formed. Where does the oxygen atom for the formation of the water come from?.
For the creation of water, molecular oxygen provides the oxygen atom.
Where does the oxygen atom come from that directly contributes to the creation of water?As the ETC's final electron acceptor, oxygen performs this function. The oxygen atoms then absorb the electrons from the complex IV and combine with the protons of hydrogen to form water. The oxygen atoms are extracted from the gaseous oxygen.
Where does the oxygen atom that is needed to create water during aerobic respiration come from?All that is known is that this oxygen atom was initially one of the atoms in the process' reactants.
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Which is the iupac name of o3? dioxide oxygen trioxygen monoxide
The IUPAC name for O3 is Trioxygen
Trioxygen is one of the three allotropes of the element oxygen
the compound has 3 atoms of oxygen bonded together
The compound is mostly found in the stratosphere where it forms a layer that absorbs ultraviolet rays the radiation and convert them to thermal energy preventing them from reaching the planet's surface.
The layer is quakily diminishing because of combining with halogens, especially chlorine and bromine atoms this is because Trioxygen is a reactive gas thats why it compines with bromine and chroline.
The gas also is used in industries for the purification of air and drinking water bleaching and industrial treatment of wastes.
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removal with base of an acidic proton from acetophenone results in the formation of a nucleophilic species called an .
Enolate production, a nucleophilic compound that interacts with electrophiles.
An explanation of nucleophilic speciesA nucleophile is a chemical entity in chemistry that establishes bonds by giving up a pair of electrons. Nucleophiles include all ions and molecules with a free pair of electrons or at least one pi bond. Lewis bases are nucleophiles because they donate electrons.
How does a nucleophile develop?As a nucleophile, the hydroxide ion contributes two electrons to an electrophilic atom, in this case the carbon atom, to create a new covalent bond. A hydroxide ion is said to be behaving as a "base" when it transfers a pair of electrons to a (acidic) proton to create a new covalent bond, as we've seen before.
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For cis‑1,3‑dimethylcyclohexane, which two chair conformations are in equilibrium?.
For the 1,3-cyclohexanes, the most stable conformation of the cis isomer has both methyl groups in equatorial positions. As you know, the geometry of sp³ hybridized carbon is tetrahedral. With cyclohexane, the whole molecule is not as flat as I often sketch in my notebook. Therefore, cyclohexane adopts two conformations. Boat form and chair form. The boat structure is less frequently seen due to its slightly greater steric hindrance, while the chair structure is preferred as it is very stable.
The figure below shows the chair conformation of cis-1 3-dimethylcyclohexane. Also, cis-1,3-dimethylcyclohexane exists in two chair forms. This is because the conformation continuously changes shape and is also called a compound in a dynamic state. The conformation is also temperature dependent. Therefore, cyclohexane shows different peaks in H NMR at low temperature and room temperature.
A closer look at cyclohexane reveals that the 12 substituents are not the same. However, six substituents occupy axial positions and the remaining six occupy equatorial positions.
The figure below shows the dynamic equilibrium conformation of cis-1 3-dimethylcyclohexane.
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Formula for
lithium nitrate + zinc sulfate ->
lithium sulfate + zinc nitrate
The formula for the reaction is given as; [tex]ZnSO_{4} + 2LiNO_{3} ----- > Zn(NO_{3} )_{2} + Li_{2} SO_{4}[/tex]
What is the formula?We know that a reaction occurs when there is a combination between two or more reactants. When the reaction occurs, there is a change in the reactans and we obtain the products. There would be a recombination of the reactants and then we would get the products of the reaction.
In this case, we have to find the formula reaction for the equation that has the word equation; lithium nitrate + zinc sulfate -> lithium sulfate + zinc nitrate. This would be done by writing the symbols of the reactants and products and then balancing the reaction equation as shown.
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9.17 give the possible compounds (including stereoisomers) that could be formed in the e2 reactions of each compound.
In an E2 reaction, the most frequent reactants are alkyl halides and alcohols.
What is E2 reaction ?In an E2 reaction, the most frequent reactants are alkyl halides and alcohols. Here are some E2 response examples. Alkenes are formed through the removal of alkyl halides. Alkenes are formed through the removal of alcohols.The unusual alignment of the -hydrogen and the leaving group in the transition state is the cause of the stereochemistry in E2 reactions. The prerequisite is that these two groups be located in the same plane - periplanar: A syn periplanar molecule has the -hydrogen and the leaving group on the same side of the molecule.To learn more about E2 reaction refer,
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Answer:
In syn elimination, the base attacks the β-hydrogen on the same side as the leaving group.
Explanation:
E2 Stereochemistry
In anti elimination, the base attacks the β-hydrogen on the opposite side of the leaving group. It has been experimentally determined that E2 elimination occurs through an anti mechanism.
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If pyruvate processing is blocked, what will happen to the levels of oxaloacetate and citrate in the citric acid cycle?.
The levels of oxaloacetate and citrate in the citric acid cycle will increase if pyruvate oxidation is prevented, whereas citrate levels will fall.
What part of the citric acid cycle does oxaloacetate play?In the citric acid cycle, oxaloacetate interacts with acetyl-CoA to produce citrate, a reaction that is catalyzed by citrate synthase. Gluconeogenesis, the urea cycle, the glyoxylate cycle, amino acid synthesis, and fatty acid synthesis are further processes in which it participates. Another effective complex II inhibitor is oxaloacetate.
What transpires when oxaloacetate levels are low?Oxaloacetate decarboxylase FAHD1 depletion causes human endothelial cells to age and impairs mitochondrial electron transport.
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Every day on his ride to school, Max sees some sedimentary rock. He starts to wonder: Could material from this sedimentary rock ever form igneous rock?
Material from this sedimentary rock ever forms igneous rock, Option D. Yes, if the sedimentary rock is moved below Earth’s outer layer and exposed to energy from Earth’s interior, it can melt into liquid rock and form igneous rock.
Sedimentary rocks are shaped from pre-existing rocks or pieces of soon-as-dwelling organisms. They form from deposits that collect on this planet's floor. Sedimentary rocks regularly have special layering or bedding.
Igneous rock, or magmatic rock, is one of the 3 primary rock kinds, the others being sedimentary and metamorphic. Igneous rock is shaped via the cooling and solidification of magma or lava. The magma may be derived from partial melts of existing rocks in either a planet's mantle or crust.
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Disclaimer:- your question is incomplete, please see below for the complete question.
Every day on his ride to school, Max sees some sedimentary rock. He starts to wonder: Could material from this sedimentary rock ever form igneous rock?
A. No, igneous rock can only form out of other igneous rocks. Sedimentary rock cannot change into igneous rock.
B. No, igneous rock forms under Earth’s outer layer due to energy from Earth’s interior, but the sedimentary rock is only at Earth’s surface.
C. Yes, if the sedimentary rock is exposed to energy from the sun at Earth’s surface for a long enough time, it can melt into liquid rock and form igneous rock.
D. Yes, if the sedimentary rock is moved below Earth’s outer layer and exposed to energy from Earth’s interior, it can melt into liquid rock and form igneous rock.
if the bond energy of the no bond in no2 (g) is 285 kj/mol, what photon(s) would have sufficient energy to cause this process to occur?
If the bond energy of the NO bond in NO₂ (g) is 285 kJ/mol, photon(s) would have sufficient energy to cause this process to occur is 422nm of wavelength.
Bond energy = 285 kJ /mol = 285000 J/mol
E = 285 × 10³ / 6.022 × 10²³ = 4.7 × 10⁻¹⁹ J
now wavelength formula is given as :
= h c / E
where,
h = Planck's constant = 6.626 × 10⁻³⁶ J.s
c = speed of light = 3 × 10⁸ m/s
= (6.626 × 10⁻³⁴ J.s × 3 × 10⁸ m/s ) / 4.7 × 10⁻¹⁹ J
= 4.22 × 10⁻⁷ m = 422 nm
Thus, If the bond energy of the NO bond in NO₂ (g) is 285 kJ/mol, photon(s) would have sufficient energy to cause this process to occur is 422nm of wavelength.
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The n = 5 to n = 3 transition in the bohr hydrogen atom corresponds to the __________ of a photon with a wavelength of __________ nm.
The n = 5 to n = 3 transition in the bohr hydrogen atom corresponds to the emission of a photon with a wavelength of 1280 nm.
Why is Bohr's model limited to hydrogen?Because it does not account for forces owing to inter-electronic attractions, Bohr's atomic model is only valid for single electron species.
The Bohr Model of the Hydrogen Atom presented the planetary model initially, but an assumption about electrons was subsequently established. The premise was that the structure of atoms could be quantized. Bohr hypothesised that electrons orbited the nucleus in fixed-radius orbits or shells.
Electrons orbit the nucleus in fixed-size, fixed-energy orbits. The orbit's energy is proportional to its size. The smallest orbit has the lowest energy. When an electron travels from one orbit to another, it absorbs or emits radiation.
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how many sigma and pi bonds are in this molecule (aka benzene)? enter a number, e.g. 0, 1, 2... what is the hybridization on the carbons? for hybridization enter either sp, sp2, sp3, sp3d, sp3d2
Hybridization determines what kind of connection is formed around the core atom. All four bonds involved in hybridization are sigma bonds. As a result, the hybridised atom has no pi bonds.
In benzene, where may one find pi bonds?Each of the six carbon atoms in benzene's cyclic arrangement of six carbons has a hydrogen atom attached to it. In benzene, there are 3 pi bonds that alternate with 6 sigma bonds connecting the carbon atoms. Four electrons in bonded electron pairs make up each carbon atom. Three of these are involved in sigma bonding, while one helps form a pi bond.
They are overlapping just about here, and this sp3 orbital is heading in that direction. When the overlap is along the same axis, this is known as a sigma bond.
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the vapor pressure of pure water at 308 k is 5571 pa. the vapor forms an ideal gas. 1) in some oil, the equilibrium concentration of water molecules is only 1% as large as in pure water. suppose that the pure water is covered with a layer of that oil. what's the equilibrium vapor pressure of water above the oil layer?
In this particular question, the equilibrium vapor pressure of water above the oil layer is 55.71 Pa.
Give a brief detail about vapor pressure.
The pressure exerted by a vapour in thermodynamic equilibrium with its condensed phases (solid or liquid) at a specific temperature in a closed system is referred to as vapour pressure (or vapour pressure in English-speaking nations other than the US; see spelling variants). A liquid's evaporation rate can be determined by looking at the equilibrium vapour pressure. It has to do with how often particles tend to float away from liquids (or a solid). Volatile is a term used to describe a chemical that has a high vapour pressure at room temperature. Vapor pressure is the force that vapour exerts when it is present above a liquid surface.
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How do humans maintain homeostasis ?
Answer:
Homeostasis is generally maintained by a negative feedback loop that includes a stimulus , sensor , control centre , and effector . Negative feedback serves to reduce an excessive response and to keep a variable within the normal range. Negative feedback loops control body temperature and the blood glucose level.
nergy payback, and state which form of renewable energy has the lowest payback period and the lowest cost at present. which two types of energy are collected under the title of marine energy? what is meant by geothermal energy? list some examples of how and where it is tapped. why are all geothermal resources not used to generate electricity? what are some environmental issues associated with geothermal energy? describe the difference between the two methods of absorbing energy from sunlight. what is the difference between active and passive systems? what is meant by solar thermal electricity, and how is it generated? describe the operation of a solar power tower that uses molten salts. what is meant by the term cogeneration? write the general chemical reactions involving metal oxides by which a fuel can be produced by using concentrated solar energy. state the second law of thermodynamics. according to this law, what formula gives the maximum fraction of heat that can be transformed into electricity? define the terms photovoltaic effect and band gap. why is amorphous rather than crystalline silicon used in some solar cells? describe the process of chemical vapor deposition. describe the workings of
While geothermal energy is energy that comes from heat contained in the bowels of the earth and is generally associated with the presence of volcanoes. Technically, water that comes from, among other things, rain will seep into the rock beneath the ground until it reaches the reservoir rock.
Energy explanationGeothermal electricity generation is done by drilling the ground in areas that have geothermal potential to create hot gas holes which will be used to heat the boiler so that the steam can drive a steam turbine connected to a generator. For geothermal energy that has high pressure, it can directly rotate the generator turbine, after the steam that comes out is cleaned first.
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a water solution of sulfuric acid has a density of 1.67 g/ml and is 75 percent h2so4 by mass. how many moles of h2so4 are contained in 400. ml of this solution?
3.193 moles of H2SO4 are contained in 400 ml of this solution
Molarity (M) is actually the amount of a substance that is present in certain volume of solution. Molarity is defined as the moles of a solute per liters of a solution. Molarity is also known as the molar concentration of the solution.
Number of moles of a solution is nothing but the given mass divided by the molecular mass. Considering this the number of moles of H2SO4 can be;
Consider 100 grams of solution contains 75 grams of solution, so
Number of moles of H2SO4 = 75 = 0.765
98
Volume of solution = 400
1.67
So molarity = 0.765 × 1.67 × 1000 = 3.193M
400
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