Chemistry

Problem

A limestone block has a mass of 0.250 kg and is assumed to be pure calcium carbonate, CaCO

_3

. Determine the amount of CaCO

_3

, in moles, present in the block. (Molar mass of CaCO

_3

= 100.09 g mol

^{-1}

.) a)

0.400\ \text{mol}

2.50\ \text{mol}

6.23\ \text{mol}

0.00250\ \text{mol}