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Ksenya-84 [330]
3 years ago
13

The density is 5.4 g/mL and the volume is 12.9 mL.

Chemistry
1 answer:
marishachu [46]3 years ago
5 0

Answer:

69.66 g

Explanation:

We have the following from the question;

Density of the substance = 5.4 g/ml

Volume of substance = 12.9 ml

Mass of substance= the unknown

Since we have both density and volume of the substance, the question must be for us to obtain the mass of the substance, hence;

Density= mass/volume

Mass= Density × volume

Mass = 5.4 g/ml × 12.9 ml

Mass= 69.66 g

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A substance releases 2,192 J of heat, changing its temperature from 50 degrees C to 5 degrees C. The mass of the substance is 73
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The specific heat capacity of the given substance is -0.66 J/g°C.

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The heat absorbed by any substance is the product of its mass, specific heat capacity and change in temperature.

q = m × c × ΔT

m is the mass in grams

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c = $\frac{q}{m \times dT}

Plugin the values, we will get,

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