105 Solutions Practice

Front

What is the solubility of KNO₃ at 60 °C according to the solubility graph?

Back

90 g/100g of water.

Front

What property of water allows a paperclip to float on its surface?

Back

Surface tension.

Front

How do you calculate the concentration of a solution in ppm?

Back

Divide the mass of the solute by the total mass of the solution and multiply by 1,000,000.

Front

How do you calculate the concentration of a solution in ppb?

Back

Divide the mass of the solute by the total mass of the solution and multiply by 1,000.

Front

What type of process is sublimation?

Back

Endothermic.

Front

Which concentration of sweet tea would taste the sweetest: 0.5 M, 1 M, 2 M, or 3 M?

Back

3 M.

Front

Define solubility.

Back

The maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature.

Front

What is surface tension?

Back

The cohesive force between liquid molecules at the surface, allowing them to resist external force.

Front

What is the difference between ppm and ppb?

Back

PPM (parts per million) is a measure of concentration equivalent to mg/L, while PPB (parts per billion) is equivalent to µg/L.

Front

What is an endothermic process?

Back

A process that absorbs heat from its surroundings.