gaebrielle gaebrielle

19-10-2020
Chemistry

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40 g of CaCO3 is how many moles of CaCO3?
10 moles
0.4 moles
40 moles
100 moles

Respuesta :

tbert55 tbert55

19-10-2020

Answer:

0.4 moles

Explanation:

To convert between moles and grams you need the molar mass of the compound. The molar mass of of CaCO3 is 100.09g/mol. You use that as the unit converter.

40gCaCO3* 1mol CaCO3/100.09gCaCO3 = 0.399640 mol CaCO3

This rounds to 0.4 moles CaCO3

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