Question

You have 31.87g of carbon how many moles do you have?

Answer 1

To find the number of moles from 31.87g of carbon, divide by the molar mass of carbon (12.0g/mol), resulting in roughly 2.6558 moles of carbon.

Step-by-step explanation:

To calculate the number of moles of carbon you have from 31.87g, you can use the molar mass of carbon. One mole of carbon has a mass of 12.0 grams because it is primarily composed of the isotope carbon-12 (¹2C). To find the number of moles, you divide the total mass of carbon you have by the molar mass of carbon.

The calculation would be as follows:

1. Determine the mass of carbon you have (given as 31.87g).
2. Use the molar mass of carbon, which is 12.0 g/mol.
3. Divide the mass of carbon by the molar mass to find the number of moles:

31.87g ÷ 12.0g/mol = 2.6558 moles (rounded to four decimal places).

Therefore, you have roughly 2.6558 moles of carbon.