Question
How to calculate mole
Answers
Answered by
GPT 3.5
To calculate the number of moles in a sample, you can use the formula:
number of moles = mass of sample / molar mass
1. Determine the mass of the sample in grams.
2. Determine the molar mass of the substance in grams per mole. You can find the molar mass by adding up the atomic masses of all the elements in the chemical formula.
3. Divide the mass of the sample by the molar mass to calculate the number of moles.
For example, if you have a sample of sodium chloride (NaCl) that weighs 58.44 grams, and the molar mass of NaCl is 58.44 g/mol, then:
number of moles = 58.44 g / 58.44 g/mol
number of moles = 1 mole
Therefore, the sample contains 1 mole of sodium chloride.
number of moles = mass of sample / molar mass
1. Determine the mass of the sample in grams.
2. Determine the molar mass of the substance in grams per mole. You can find the molar mass by adding up the atomic masses of all the elements in the chemical formula.
3. Divide the mass of the sample by the molar mass to calculate the number of moles.
For example, if you have a sample of sodium chloride (NaCl) that weighs 58.44 grams, and the molar mass of NaCl is 58.44 g/mol, then:
number of moles = 58.44 g / 58.44 g/mol
number of moles = 1 mole
Therefore, the sample contains 1 mole of sodium chloride.