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Oliga [24]
3 years ago
10

A saline solution contains 1.1% NaCl by mass. How much NaCl is present in 96.3 g of this solution

Chemistry
1 answer:
timurjin [86]3 years ago
8 0

Answer:

= 1.0593 g

Explanation:

1.1% NaCl by mass, means;

1.1 g per 100 g = 0.011

Therefore; the amount of NaCl present in 93.6 g of the solution is;

= 0.011 × 96.3 g

<u>= 1.0593 g</u>

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This problem involves a weak diprotic acid which we can solve by realizing they amount  to buffer solutions.  In the first  deprotonation if all the acid is not consumed we will have an equilibrium of a wak acid and its weak conjugate base. Lets see:

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For polyprotic acids the second or third deprotonation contribution to the pH when there is still unreacted acid ( Maleic in this case) unreacted.

           

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