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natulia [17]
3 years ago
12

Convert 12 kcal to joules

Chemistry
2 answers:
miss Akunina [59]3 years ago
8 0

Answer:

50241.6

Explanation

sladkih [1.3K]3 years ago
5 0

Answer:50208

Explanation:

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The density of mercury is 13.5g/mL. What is the volume of this liquid if the sample weighs 12.5 pounds?
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Explanation :

Density : The mass per unit volume of a substance is known as density.

Formula used:

\text{Density}=\frac{\text{Mass}}{\text{Volume}}

As we are given:

Density of mercury = 13.5 g/mL

Mass = 12.5 pounds

First we have to convert mass of sample from pound to gram.

Conversion used:

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So, 12.5 pounds = 453.6 × 12.5 g = 5670 g

Now we have to calculate the volume of liquid.

\text{Density}=\frac{\text{Mass}}{\text{Volume}}

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Volume = 420 mL

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