Question

Calculate the molality of 117 g of NaCl dissolved in 500 mL of water. Density of water is 1.01 g/mL.
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Answer 1

Answer:

$\huge \bold \red {Answer}$

Number of moles of NaCl=

58.5

117

Molarity = 2/500/100

=4 M

Answer 2

Answer:

Number of moles of NaCl= 117/58.5 =2

Molarity= 2/500/1000 =4 M