Question

What is the Molarity of a solution with 257 grams of sodium hydroxide in a 650. mL of solution?

Answer 1

Solution.

$m=257g;$

$V=650mL=0.65L;$

$M(NaOH)=39.997g/mol;$

$C=\dfrac{m}{MV};$

$C=\dfrac{256g}{39.997g/mol\sdot0.65L}=9.85mol/L;$

Answer:$C=9.85mol/L.$