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Natasha2012 [34]
3 years ago
7

What is the volume of 1.50 lb (pounds) of mercury? The density of mercury is 13.546 g/mL. Use the conversion that 1 kg = 2.20 lb

. mL.
Chemistry
1 answer:
Arada [10]3 years ago
7 0

Answer:

50.3mL of mercury are in 1.50lb

Explanation:

Punds are an unit of mass. To convert mass to volume we must use density (13.546g/mL). Now, As you can see, density is in grams but the mass of mercury is in pounds. That means we need first, to convert pounds to grams to use density and obtain volume of mercury.

<em>Mass mercury in grams:</em>

1.50lb * (1kg / 2.20lb) = 0.682kg = 682g of mercury.

<em>Volume of mercury:</em>

682g Mercury * (1mL / 13.546g) =

<h3>50.3mL of mercury are in 1.50lb</h3>
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<u>Answer:</u> The correct answer is Option d.

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3 years ago
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This uses the concept of freezing point depression. When faced with this issue, we use the following equation:
ΔT = i·Kf·m
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Answer:

Explanation:

From the given information:

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\Delta \ T_f = 2.9 ^0 \ C

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K_f = 4.82 ^0 C / m}

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= \dfrac{61.6 \ g \times \dfrac{1 \ mol \ NH_4Cl}{53.5 \ g} }{1150 \ g \times \dfrac{1 \ kg}{1000 \g }}

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\mathbf {i = 1.51 }

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