Problem: A cube of gold that is 1.00 cm on a side has a mass of 19.3 g. A single gold atom has a mass of 197.0 amu.How many gold atoms are in the cube?

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FREE Expert Solution

We have to determine the number of gold atoms in a gold cube with sides equal to 1.00 cm and the mass of 19.3 g.


The number of atoms in the given mass of an element can be determined by this formula:

# atoms = massmolar mass×NA

Where,

NA = Avogadro’s number = 6.022×1023 atoms/mol

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Problem Details

A cube of gold that is 1.00 cm on a side has a mass of 19.3 g. A single gold atom has a mass of 197.0 amu.

How many gold atoms are in the cube?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Mole Concept concept. You can view video lessons to learn Mole Concept. Or if you need more Mole Concept practice, you can also practice Mole Concept practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Davis' class at UCF.