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valentinak56 [21]
3 years ago
11

The ratio of zinc to copper in some alloy is 2 to 5. If 60 kilograms of zinc are used, how many kilograms of copper are needed t

o make this alloy
Chemistry
1 answer:
NemiM [27]3 years ago
5 0

Answer:

The correct answer is 150 kilograms.

Explanation:

Based on the given information, the ratio of zinc and copper within the alloy is 2:5. The amount of zinc used in the alloy is 60 kg. Now the amount of copper used within the alloy would be,

Zinc/Copper = 2/5

60/Copper = 2/5

Copper(Cu) = 60*5/2

Cu = 150 Kilograms.

Thus, the amount of Cu used in the alloy is 150 Kg.

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First, we can assume the density of water to be 1 g/mL, so the volume of water would be 725 mL. The density of Acetic Acid (Pure) is 1,05 g/mL so 8 grams would represent 7,61 mL

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[CH_3CO_2H]=\frac{8 g_{CH_3CO_2H}  }{725 mL + 7,61 mL}* \frac{1000 mL}{1 L}* \frac{1 mol_{CH_3CO_2H} }{60,05 g_{CH_3CO_2H} }

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