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Tia has a sample of pure gold (Au). She weighed the sample and the result was 25.0 grams. Tia wants to determine the number of atoms in the sample. Calculate the number of atoms in 25.0 g of pure gold.
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3 votes
Tia has a sample of pure gold (Au). She weighed the sample and the result was 25.0 grams. Tia wants to determine the

number of atoms in the sample. Calculate the number of atoms in 25.0 g of pure gold.

User Sherif ElKhatib
by
4.0k points

2 Answers

0 votes
25g divided by the molecular mass of gold (periodic table) and then multiply is by 6 x 10^23
User Enoah Netzach
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4.7k points
7 votes
764.325billion atoms
User Christopher Clark
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4.9k points
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