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Which type of stoichiometric calculation does not require the use of molar mass?
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∙ 11y ago
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∙ 11y ago
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Is molar mass the conversion factor in stoichiometry?
Yes - it allows one to convert the stoichiometric ratios into mass ratios.
Does percentage calculation require the chemical formula of the solute?
For mass % only the mass is required for this calculation. When only moles are known, than also molar composition - formula and atomic- or molecular masses are needed to calculate % of composition
What is molar mass's role in reaction-stoichiometry?
Stoichiometry is based on the fact that chemical reactions occur in ratios of moles of all substances. The problem is that there is no device that directly measures moles. We do have a device to measure mass, so molar mass is used in stoichiometric calculations to give results which are measurable.
What is the molar mass of lithium sulfate?
Molecular weight calculation: 6.941*2 + 32.065 + 15.9994*4
Find the number of moles in 25.0 grams of potassium?
Since we know the mass and molar mass, we can just insert them into this equation: n = m / M where n is the number of moles, m is the mass and M is the molar mass. I will not do the calculation for you, you should make your homework yourself (the molar mass of potassium can be found in the periodic table) :)
Is molar mass the conversion factor in stoichiometry?
Yes - it allows one to convert the stoichiometric ratios into mass ratios.
Does percentage calculation require the chemical formula of the solute?
For mass % only the mass is required for this calculation. When only moles are known, than also molar composition - formula and atomic- or molecular masses are needed to calculate % of composition
What is the calculation for the formula FeSO4.7H2O?
The molar mass of iron(II) sulfate heptahydrate is 278,01556.
What is molar mass's role in reaction-stoichiometry?
Stoichiometry is based on the fact that chemical reactions occur in ratios of moles of all substances. The problem is that there is no device that directly measures moles. We do have a device to measure mass, so molar mass is used in stoichiometric calculations to give results which are measurable.
How many moles are in acetylsalicylic acid?
The molar mass of acetylsalicylic acid is 180.157 g/mol. There is a calculation involved in order to find the number of moles in a sample of ASA in which you divide the mass of your sample with the molar mass.
What is the molar mass of lithium sulfate?
Molecular weight calculation: 6.941*2 + 32.065 + 15.9994*4
Find the number of moles in 25.0 grams of potassium?
Since we know the mass and molar mass, we can just insert them into this equation: n = m / M where n is the number of moles, m is the mass and M is the molar mass. I will not do the calculation for you, you should make your homework yourself (the molar mass of potassium can be found in the periodic table) :)
What is the molar mass of KC2H3O2?
Molar mass of KC2H3O2 = 98.14232 g/mol Molecular weight calculation: 39.0983 + 12.0107*2 + 1.00794*3 + 15.9994*2 See the 'sources and related links' at bottom of this answer. The site there works the molar mass out for you automatically, all you have to do is insert 'KC2H302')
What information do you need to predict the mass of a reactant or product in a chemical reaction?
To predict the mass of a reactant or product in a chemical reaction, you would need the balanced chemical equation for the reaction, as it provides the stoichiometric ratio between the reactants and products. Additionally, you would need the molar mass of the specific substance you are interested in. With this information, you can calculate the mass using stoichiometry and molar ratios.
If one knows the mass and molar mass of reactant A and the molar mass of product D in a chemical reaction one can determine the mass of product D produced by using the?
Balanced chemical equation along with the stoichiometric ratios derived from that chemical reaction. A + B --> 2C mass of A * 1/molar mass of A = moles of A Moles of A * 2 moles of C/mole of A = moles of C Moles of C * molar mass of C = mass of C Also, you must think about limiting reagents, because if there is not enought reactant B to react with the amount of reactant A then the amount of reactant B will limit the production of product C!
What is the molar mass of sulfur?
The molar mass of sulfur is 32.065. Molar mass is the mass per mole of a substance. In other words, Molar Mass = Mass/Amount of Substance.
The mass of a mole of a substance expressed in grams is called a?
molacular mass
