Respuesta :

I believe it to be g/mol of Calcium carbonate
because to finde mass...u must have grams(g) as units....
it is the only one that have g as units 

as for the first answer the avogadros number gives u the number of atoms in  one mole of calcium carbonate....
the second one is based on ... At s.t.p one mole of gas occupies 22.4 dm³⇒to find volume 

To find the mass of 3.2 moles of calcium for carbonate, the formula that will use is g/MOL of calcium carbonate.

What is calcium carbonate?

Calcium carbonate is a carbonic salt of calcium. It is used as antacid, to relief from gastric relief. It relieves in acidic discomfort. It is also used as dietary supplement to cover up the deficiency of calcium.

Thus, the correct option is C, g/MOL of calcium carbonate.

Learn more about calcium carbonate

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