Solutions and Molarity

Front

What is a solution?

Back

A homogeneous mixture of two or more substances where one substance (solute) is dissolved in another (solvent).

Front

What is molarity?

Back

Molarity (M) is a measure of concentration defined as the number of moles of solute per liter of solution.

Front

What is a solute?

Back

The substance that is dissolved in a solution.

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What is a solvent?

Back

The substance in which the solute is dissolved, typically present in greater amount.

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What does it mean if a substance is soluble?

Back

It means the substance can be dissolved in a solvent.

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What does it mean if a substance is insoluble?

Back

It means the substance cannot be dissolved in a solvent.

Front

How do you calculate molarity?

Back

Molarity (M) = moles of solute / liters of solution.

Front

If you have 6 moles of Sodium Hydroxide, how many liters are needed for a 1 M solution?

Back

6 liters.

Front

What is the relationship between solubility and temperature?

Back

Generally, solubility of solids increases with temperature, while solubility of gases decreases.

Front

What is the formula to find the number of grams of solute that can be dissolved in a given volume of solvent?

Back

grams of solute = (molarity) x (liters of solution) x (molar mass of solute).