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Question #7d366

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Jul 19, 2017

$C = 0.01175 M$ $C=0.01175M$

Explanation:

Let's first find how many mols are $2.35 g r a m s$ $2.35 grams$ of $N a O H$ $NaOH$

$n_{NaOH} = \frac{m}{M r} = \frac{2.35}{40} = 0.05875 m o l s$ $n_"NaOH"=m/(Mr)=2.35/40=0.05875mols$

Let's now convert the $500 c m^{3}$ $500cm^3$ into $L i t r e s$ $Litres$

$500 c m^{3} = 500 c m^{3} \cdot \frac{0.001 L}{1 c m^{3}} = 5 L$ $500cm^3=500cm^3*(0.001L)/(1cm^3)=5L$

Now the concentration is:

$C = \frac{n}{V} = \frac{0.05875}{5} = 0.01175 M$ $C=n/V=0.05875/5=0.01175M$

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