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Calculate the present by mass of NaC1 i...

Calculate the present by mass of `NaC1 ` if 1.75 g of NaC1 is dissolved in 7.88g of water

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Mass percentage of NaCl
`= ("Mass of NaCl ")/( "Total mass of the solution ") xx 100`
`= ( 1.75)/( 1.75+ 7.88) =( 1.75)/(9.6) = 18.2%`
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