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Citrus2011 [14]
3 years ago
13

Suppose you have two cubes of exactly the same volume. You weigh them and find a mass of 8.91g for one and 8.88g for the other c

ube even though they are made of the same material. How is this possible? ANSWER FAST
Chemistry
2 answers:
Blababa [14]3 years ago
7 0

Explanation:

Mass of the cube -1 = 8.91 g

Mass of  the cube-2 = 8.88 g

Volume of the cube-1 = Volume of cube-2 = V

Density of the cube-1 = D

Density of cube-2 = D'

Density=\frac{Mass}{Volume}

D=\frac{8.91 g}{V}

D'=\frac{8.88 g}{V}

\frac{D}{D'}=\frac{\frac{8.91 g}{V}}{\frac{8.88 g}{V}}=1.0033

D=1.0033\times D'

Density directly depends upon mass of the substance and inversely depends upon volume of the substance.

Here volume of the both cubes are same but masses are different. So, in this case densities of both cubes can be compared on the basis of masses.

This difference in densities of same material can be due following possibles:

1. May be an impurity present in the one of the cubes for which they have given different values their mass.

2. Weighing may not be working well.

3. May be an air trapped inside in one of the cubes.

Yuliya22 [10]3 years ago
3 0
The two substances have different densities. Density can be affected by the temperature of a substance. Since they have to same volume but weigh differently, they have different densities. Remember, density = mass/volume
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The empirical formula of a compound found to have 55.7% hafnium and 44.3% chlorine is HfCl4.

<h3>How to calculate empirical formula?</h3>

The empirical formula of a compound is a notation indicating the ratios of the various elements present in a compound, without regard to the actual numbers.

The empirical formula of the given compound can be calculated as follows:

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First, we convert mass values to moles by dividing by the molar mass of each element

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Therefore, the empirical formula of a compound found to have 55.7% hafnium and 44.3% chlorine is HfCl4.

Learn more about empirical formula at: brainly.com/question/14044066

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