Question 1072370
14 M  means  14 MOLES per LITER.

C, new molarity when diluted
{{{(0.70)(14)=(4)*C}}}


{{{C=(0.70*14)/4}}}


{{{C=2.45}}}




<s>Amount of water added,</s>  {{{cross(2.45-0.7=highlight(1.75*liters))}}}
<s>To two significant figures,</s> {{{cross(highlight(1.8*liters))}}}.