Topic 1 States of matter C (solubility)

Last updated about 2 months ago
14 questions
2

3

Explain why solid lead iodide takes less time to form when the reaction is repeated using water at a higher temperature.

1

Which substanceis a gas at 100 °C?

1

Which substance is a liquid for the largest range of temperature?

1

Which substance is a liquid at 1000 °C and a gas at2000 °C?

2

Calculate the mass of solid obtained and the mass of water removed.

2

3

3

Plot the results on the grid.
Draw a circle around the anomalous result
Ignoring the anomalous result, draw a curve of best fit

2

Suggest two possible mistakes that could have caused the anomalous result.

2

Use your graph to find the maximum mass of potassium nitrate that dissolves in 25 cm of water at 75 °C. Show on your graph how you obtained your answer.

2

Use your graph to calculate the solubility of potassium nitrate in g per 100 g of water at25 °C. [1.0 cm of water has a mass of 1.0 g]

2

Determine the temperature at which copper(II) chloride and sodium chloride have the same solubility. Show on the graph how you obtained your answer.

2

A saturated solution of copper(II) chloride in 100 g of water is cooled from 40 °C to10 °C. Determine the mass, in grams, of copper(II) chloride that crystallises