Calculate the mass of salt required to make 300 g of 30% solution of salt in water.
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There are many concentration terms for a solution but by going with the information given in this question
%concentration of salt
= mass of salt/mass of solution *100
= 35/(300+35). *100
{solution contains both salt and water}
= 35/ 335. *100
=7/37. *100
=0.189. *100
=18.9
Explanation:
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