Which statement best describes a solution?

2 answers:

8 0

I think the correct answer 3. A solution is a type of mixture having a uniform composition where the components can't be seen separately and all components are in the same state. It is considered as a homogeneous mixture where at any point the properties and the concentration of the solution would have the same value.

Alinara [238K]3 years ago

4 0

Answer: Option (3) is the correct answer.

Explanation:

A solution is defined as a homogeneous mixture in which solute particles are evenly distributed into the solvent.

A solution is a clear solution whose particles cannot be separated out as they are all present in same state.

On the other hand, a mixture in which particles are unevenly distributed into the solvent is known as a heterogeneous mixture.

For example, sand in water is a heterogeneous mixture.

Particles of a heterogeneous mixture can be separated out generally through filtration. This is because these particles are not present in same state.

Thus, we can conclude that the statement a mixture having a uniform composition where the components can't be seen separately and all components are in the same state, best describes a solution.

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You have 16.0 g of some compound and you perform an experiment to remove all of the oxygen, 11.2 g of iron is left. What is the

oksian1 [2.3K]

The empirical formula of this compound is equal to $Fe_{2}O_3$ .

<h3>Empirical formula</h3>

To calculate the empirical formula of a compound, it is necessary to know the number of moles present.

Therefore, we will use the molar mass of iron and oxygen to find the amount of moles, so that:

$MM_O = 16g/mol\\MM_Fe = 55.8g/mol$

$MM = \frac{m}{mol}$

Oxygen

$16 = \frac{4.8}{mol}$

$mol = 0.3$

Iron

$55.8 = \frac{11.2}{mol}$

$mol = 0.2$

Finally, as the empirical formula is composed of integers numbers of moles, just multiply the values by the smallest common factor to transform into an integer, so that:

O => $0.3 \times 10 = 3moles$