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MAXImum [283]
3 years ago
12

Question a chemist mixes 35 milliliters of a solution that is 18% acid with 90 milliliters of a solution that is 68% acid. answe

r the questions below. do not do any rounding.
Chemistry
1 answer:
Allushta [10]3 years ago
8 0
Missing questions: 
<span>a) How many milliliters of acid are in the resulting mixture?
b) What percentage of the resulting mixture is acid?
a) V</span>₁ = 35 ml.
ω₁ = 18% = 0,18.
V₂ = 90 ml.
ω₂ = 68% = 0,68.
V(acid) = V₁ · ω₁ + V₂ · ω₂.
V(acid) = 35 ml · 0,18 + 90 ml · 0,68 = 67,5ml.
b) ω(acid) = 67,5 ml ÷ (35 ml + 90 ml).
ω(acid) = 54%.
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