How many moles of $HCl$ are in 75.0 mL of 0.200 M solution?

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Answer 1 · 2016-05-12T09:47:59

0.015 moles.

These questions can easily be resolved using the relationship that concentration (or molarity) m = no. of moles / no. of litres.

In this case, simply rearrange for no. of moles.

No. of moles = molarity x no. of litres = 0.2 x (75/1000) = 0.015 mol.

How many moles of HClHCl are in 75.0 mL of 0.200 M solution?