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You need the balanced symbol equation for the reaction. The numbers in front of the formulae show the mole ratios. For example, in the thermal decomposition of calcium carbonate:
CaCO3 --> CaO + CO2
The equation is balanced.
The mole ratio between CaCO3 and CO2 is 1:1 because there is 1 mole of CaCO3 for every mole of CO2
What else can I help you with?
How do you calculate mass of an unknown liquid in grams per mole?
To calculate the mass of an unknown liquid in grams per mole, you would need to know the substance's molar mass (g/mol) and the amount of the substance in grams. Then, divide the mass in grams by the molar mass to get the value in grams per mole.
What is the mole fraction of solute and solvent is equal to?
When the mole fraction of solute and solvent is equal, it means that both components are present in equal amounts in the solution. This would correspond to a mole fraction of 0.5 for both the solute and solvent.
Explain the henry's law about dissolution of in a liquid?
Henry's law states that, the partial pressure of the gas in vapour phase is proportional to the mole fraction of the gas in the solution.
Molar volume of liquid is greater than molar volume of gas. why?
The molar volume of a liquid is greater than that of a gas because in a liquid, the particles are closer together and have stronger intermolecular forces holding them in place, resulting in a higher density compared to a gas where particles are more spread out and have weak intermolecular forces. This leads to a smaller volume per mole for gases compared to liquids.
Why One mole should represent the same volume?
One mole represents the same number of particles, regardless of the substance. Since the volume that a mole occupies is determined by the substance's molar mass and density, one mole of any substance at the same conditions of temperature and pressure will have the same volume.
State relation between mole fraction and Volume fraction?
For Ideal gases, mole fraction=volume fraction
When can volume fraction be equal to mole fraction?
The volume fraction of a substance is equal to the mole fraction for ideal gas mixture
Why mole fraction does not dependend upon temperature?
because mole fraction doesnot depend on volume
What is the mole fraction of oxygen in a gas mixture that is 37 percent oxygen and 63 percent nitrogen in volume?
To find the mole fraction of oxygen, first convert the percentages to fractions: 37% oxygen is 0.37 and 63% nitrogen is 0.63. Since the total mole fraction in a mixture is 1, the mole fraction of oxygen would be 0.37/(0.37 + 0.63) = 0.37/1 = 0.37. Therefore, the mole fraction of oxygen in the gas mixture is 0.37.
How can the molality of a solution be converted to its corresponding mole fraction?
To convert the molality of a solution to its corresponding mole fraction, you can use the formula: Mole fraction (molality / (molality 1000)) This formula calculates the ratio of the moles of solute to the total moles of solute and solvent in the solution.
What is the relationship between mole fraction and concentration in a solution?
The mole fraction of a substance in a solution is the ratio of the number of moles of that substance to the total number of moles in the solution. Concentration, on the other hand, is the amount of a substance present in a given volume of the solution. The mole fraction and concentration are related because the mole fraction can be used to calculate the concentration of a substance in a solution.
What are the mole fraction and molality of ethanol -C2H5OH in an aqueous solution that is 45.0 percent ethanol by volume-The density of water is 1.00g per mL and that of ethanol is 0.789 grams per mL?
First, calculate the volume percentages of ethanol and water in the solution. Since we know the density of both solvents, convert the percentages to mass (using density and volume). Then calculate the mole fraction of ethanol by dividing the moles of ethanol by the total moles of all components in the solution. Finally, calculate molality using the moles of solute (ethanol) and the mass of the solvent (water).
How do you solve mole to mole Stoichiometry problems?
To solve mole to mole stoichiometry problems, first write a balanced chemical equation. Convert the given amount of the starting substance (in moles) to moles of the desired substance using the mole ratio from the balanced equation. Finally, convert the moles of the desired substance to the desired unit, such as grams or volume, if necessary.
What is the approximate mole fraction of nitrogen and oxygen in the atmosphere combined?
The approximate mole fraction of nitrogen in the atmosphere is about 0.7808, and the approximate mole fraction of oxygen is about 0.2095. When combined, the mole fraction of nitrogen and oxygen in the atmosphere is approximately 0.9903.
What formula do you use to find a solution stregth?
Your question doesn't have a single answer. In Chemistry solution strength is usually calculated in moles pe liter of mole per kilogram or as a mole fraction ( moles per mole) but can also be mass per liter, mass per mass, volume per volume, percent by mass, or percent by volume.
What is the mole fraction of solute in a 3.82 m aqueous solution?
To find the mole fraction of solute, you need to know the moles of solute and solvent. In this case, the moles of solute can be calculated by multiplying the molarity of the solution by the volume of the solution. Once you have the moles of solute and solvent, you can find the mole fraction of solute by dividing the moles of solute by the total moles of solute and solvent.
Why mole fraction is independent of temperature?
as we define mole to be mass of the solute divided by molecular mass of the solute so all the solutes are taken in the solid form not in the liquid like we take 1L in molarity,so solids are generally independent of temp thats why both molality and mole fraction are independent of temperature
