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Anna35 [415]
3 years ago
15

Help plz

Chemistry
1 answer:
SIZIF [17.4K]3 years ago
6 0
Not sure about the first one.
Wind farms can be set up anywhere.
To provide electricity to homes.
Recycling aluminum cans.
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Answer:

145 grams of a 0.480 % KCN solution contains 697 mg of KCN.

Explanation:

w/w % : The percentage mass or fraction is mass of the of solute present in 100 grams of the solution.

w/w\%=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100

given =  w/w% = 0.480 %

Mass of solute that KCN = 697 mg = 0.697 g

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145 grams of a 0.480 % KCN solution contains 697 mg of KCN.

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