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Keith_Richards [23]
3 years ago
10

100gm of a 55% (M/M) nitric acid solution is to be diluted to 20% (M/M) nitric acid.

Chemistry
1 answer:
yawa3891 [41]3 years ago
7 0

Volume of H₂O added = 175 ml

<h3>Further explanation</h3>

Given

100 gm of a 55% (M/M)  and 20% (M/M) nitric acid solution

Required

waters added

Solution

starting solution

mass H₂O = 45%=45 g

%mass of H₂O in new solution = 100%-20%=80%

Can be formulated for %mass H₂O :

\tt \dfrac{45+x}{100+x}=80\%\\\\45+x=0.8(100+x)\\\\45+x=80+0.8x\\\\35=0.2x\rightarrow x=175~g

For water mass=volume(density = 1 g/ml)

So volume added = 175 ml

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An object has a density of 10.00 g/mL. If the object has a volume of<br> 25.00 ml, what is the mass?
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