Question

write the mass percentage of water when 2 gram of NaCI is precent in 100g of water
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Answer 1

Answer:

Mass of solute i.e, for the sodium chloride =58.5g

Mass of solvent i.e, for the water=100g

Mass of solution=58.5+100=158.5g

The concentration of solution in terms of mass percentage is given as,

 

                          =  

Massofsolution×100

Massofsolute

​  

 

                           =  

158.5×100

58.5

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                             36.9%