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Darya [45]
3 years ago
14

A sample of gold (Au) has a mass of 35.12 g. what is the moles of each element for AU?

Chemistry
1 answer:
vlada-n [284]3 years ago
5 0
To determine the number of moles(n) of a substance, divide its amount given in grams by the molar mass. The element in the problem is gold (Au) which has a molar mass of 196.97 grams per mole. The division is better illustrated below
 
                                     n = 35.12 g / 196.97 grams per mole

The answer to the operation above is 0.1783 moles. Therefore, there are approximately 0.1783 moles of Au in 35.12 grams.


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