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

Question

Newman

Chemistry

15 June, 16:13

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

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Answers (1)

Know the Answer?

Elianna Werner · Answer 1

0.005 mol

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