3 years ago

Salt dissolved in water is a solution, therefore _____.

1 answer:

4 0

Therefore salt can be dissolved in water as the water acts as a solvent to the salt that is the solute so it dissolves

hope that helps

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Explanation:

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soldier1979 [14.2K]

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Mashcka [7]

Probably look up the descriptions of the element and see if it matches the mineral.

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Dennis_Churaev [7]

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2 years ago

Margaret [11]

Answer:

$\boxed {\boxed {\sf 2.8 \ m }}$

Explanation:

The formula for molality is:

$m=\frac{moles \ of \ solute}{kg \ of \ solvent}$

There are 0.210 moles of KBr and 0.075 kilograms of pure water.

$moles= 0.210 \ mol \\kilograms = 0.075 \ kg$

Substitute the values into the formula.

$m= \frac{ 0.210 \ mol }{0.075 \ kg}$

Divide.

$m= 2.8 \ mol/kg= 2.8 \ m$

The molality is <u>2.8 moles per kilogram</u>

5 0

3 years ago