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alina1380 [7]
3 years ago
10

A liquid that occupies a volume of 9.0 L has a mass of 7.2 kg. What is the density of the liquid in kg/L ?

Chemistry
2 answers:
Katyanochek1 [597]3 years ago
8 0

Answer:

Density of the liquid is 0.8 kg/L

Explanation:

It is given that,

Mass of liquid, m = 7.2 kg

Volume of liquid, v = 9 L

We have to find the density of liquid. Density of a liquid is defined as the ratio of mass per unit volume. Mathematically, it can be written as :

\rho=\dfrac{m}{V}

\rho=\dfrac{7.2\ kg}{9\ L}

\rho=0.8\ kg/L

So, the density of the liquid is 0.8 kg/L. Hence, this is the required solution.

choli [55]3 years ago
4 0
The density of an object is mass / volume. These units are unusual but since you are reporting your answer in kg/L, the actual conversion is unnecessary

d = m/V
d = 7.2 kg / 9 L
d = 0.8 kg / L
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Answer: 17.34 grams of alum will be produced if 0.9875 g of Aluminium foil was used.

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2Al(s)+2KOH(aq.)+2H_2O(l)+4H_2SO_4(aq.)\rightarrow 2KAl(SO_4)_2(s).12H_2O(l)+3H_2(g)

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54 g/mol of aluminium will produce 948 g/mol of alum, so

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