Question

How many moles of carbon atoms are there in 4 mol of each of the following compounds?

Calcium carbonate, CaCO3. Express your answer numerically in moles.

Urea, CO(NH2)2. Express your answer numerically in moles.

Ethylene glycol, C2H6O2. Express your answer numerically in moles.

Answer 1

How many moles of carbon atoms are there in 4 mol of each of the following compounds?

Calcium carbonate, CaCO3. Express your answer numerically in moles.

Urea, CO(NH2)2. Express your answer numerically in moles.

Ethylene glycol, C2H6O2. Express your answer numerically in moles.

Sol :-

(a). CaCO₃ :-

1 mole of CaCO₃ contains = 1 mole of C atom

So,

4 mole of CaCO₃ contains = 1 x 4 mole of C atom

= 4 moles of Carbon atom.

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(b). CO(NH₃)₂ :-

1 mole of CO(NH₃)₂ contains = 1 mole of C atom

So,

4 mole of CO(NH₃)₂ contains = 1 x 4 mole of C atom

= 4 moles of Carbon atom.

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(c). C₂H₆O₂ :-

1 mole of C₂H₆O₂ contains = 2 mole of C atom

So,

4 mole of C₂H₆O₂ contains = 2 x 4 mole of C atom

= 8 moles of Carbon atom.