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Be sure to answer all parts.

How many moles are contained in each of the following? Report your answer with the appropriate number of significant figures.
Thank you!

Be sure to answer all parts How many moles are contained in each of the following Report your answer with the appropriate number of significant figures Thank yo class=

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The number of moles contained in each of the question are a) 3.935 and b) 0.001165 mol.

What are moles?

Moles are a quantity or amount of a substance. Denoted by n.

To calculate moles, mass is divided by the molar mass

n = m/M

mass is divided by the molar mass

a) 230 grams of NaCl

n = m/M

molar mass of NaCl is 58.44 g/mol

n = 230 / 58.44 = 3.935 mol

b) 0.210 g of aspirin

n = m/M

molar mass of aspirin is 180.158 g/mol

n = 0.210 / 180.158 = 0.001165 mol

Thus, the moles are a) 3.935 and b) 0.001165 mol.

Learn more about moles

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