Question

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How many moles are in 325 g of MgCO3?

0.161 moles
0.269 moles
1.98 moles
3.85 moles

Answer 1

3.85

Step-by-step explanation:

Calculate molar mass, starting with each element, then find grams per mole, then convert.

Answer 2

The answer is the fourth one you’ve listed, 3.85 mole