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How many moles are in 1.05 g of gold (Au)?

User Larjudge
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1 Answer

6 votes

Answer:

0.005 mol

Step-by-step explanation:

Moles is denoted by given mass divided by the molecular mass ,

Hence ,

n = w / m

n = moles ,

w = given mass ,

m = molecular mass .

From the question ,

w = given mass of Gold = 1.05 g ,

m = molecular mass of Gold = 197 g/mol

Hence , moles can be calculated as -

n = w / m = 1.05 g / 197 g/mol = 0.005 mol

User Ihammys
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