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Vikentia [17]
3 years ago
9

What is the density (g/mL) of an object that has a mass of 0.03 kg and occupies a volume of 25 mL?

Chemistry
2 answers:
tatyana61 [14]3 years ago
5 0
First convert the kg to g ----- 0.03kg = 30g
Then divide the mass by the volume ----- 30g ÷ 25mL = 1.2
The density is 1.2g/mL<span />
zavuch27 [327]3 years ago
3 0

Answer : The density of an object is 1.2 g/mL

Explanation :

Density : It is defined as the mass contained per unit volume.

Formula used :

Density=\frac{Mass}{Volume}

Given :

Mass of object = 0.03 kg = 30 g

conversion used : (1 kg = 1000 g)

Volume occupied by object = 25 mL

Now put all the given values in the above formula, we get :

Density=\frac{30g}{25mL}=1.2g/mL

Therefore, the density of an object is 1.2 g/mL

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Now put all the given values in Q_1, we get:

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<u>For process 2 :</u>

Q_2=m\times c_{p,l}\times (T_{final}-T_{initial})

where,

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c_{p,l} = specific heat of liquid water = 4186J/Kg^oC

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Now put all the given values in Q_2, we get:

Q_2=1.0Kg\times 4186J/Kg^oC\times (100-0)^oC

Q_2=4.186\times 10^5J

From this we conclude that, Q_1 that means it takes less amount of heat to metal 1.0 Kg of ice.

Hence, the it takes less amount of heat to metal 1.0 Kg of ice.

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