Calculate the mass of common salt required to be dissolved into 50g of water to prepare 20% (by mass) solution.
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MASS BY MASS %=(MASS OF SALT/MASS OF SALT+WATER)*100
20=(X/X+50)*100
5X=X+50
4X=50
X=50/4=12.5g OF SALT
Answered by
1
The answer is 12.5g of salt
Mass by mass %=(mass of salt/mass of salt+ water)*100
20=(x/x+50)*100
5x=x+50
4x=50
x=50/4
x =12.5g of salt
#SPJ3
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