GCSE|Edexcel|Chemistry P1F (Nov 2021)

Fertilisers are sometimes added to soil.

State why fertilisers are added to soil.

Fertilisers contain compounds of different elements.

Three of these elements have the symbols K, N and P. Use the periodic table to state the names of these three elements. K............................................................................................................................ N............................................................................................................................ P..................................................................................................................................

Give the names of the pieces of apparatus P and Q. P............................................................................................................................ Q...........................................................................................................................

In the titration experiment, small volumes of dilute sulfuric acid are added gradually to the ammonia solution in a flask.

Give the letter, P, Q or R, of the piece of apparatus in Figure 1 that should be used to add the dilute sulfuric acid.

The titration experiment is used to produce a solution of ammonium sulfate.

Describe how solid ammonium sulfate should be obtained from this solution.

If liquid water is cooled below 0°C it turns into the solid, ice.

Give the name for the change of state from liquid to solid.

Here are five statements about ice and water.

Place ticks in boxes by the two statements that are correct.

Explain why this drinking water should not be described as pure water.

State the information from Figure 2 that shows that the drinking water is neutral.

Calculate the mass of calcium ions in 250cm3 of this drinking water.