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To prepare 1 ltr of 14% NaCl solution, 700 ml of 20 % Nacl solution will be mixed with 300 ml of water.
<h3>What is percentage composition ?</h3>
The percent composition of a compound is the mass percent of each element in the compound.
To prepare ;
14 % NaCl Solution, Which means 140 gm of NaCl in 1000 ml solution.
Given Slolution ;
20% NaCl solution, Which means 200 gm of NaCl in 1000 ml Solution.
We need 140gm of NaCl from above solution
If 1000 ml consist of 200 gm NaCl
then, X ml will contain 140 gm of Nacl ;
140 / x = 200 / 1000
Therefore,
x = 1000 x 140 / 200
= 700 ml of Nacl solution of 20%.
Hence, 700 ml of 20% solution are needed to mix 300 ml of water to make 1L of a 14% NaCl solution.
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