Get premium membership and access questions with answers, video lessons as well as revision papers.
Put 10 mL of sodium thiosulphate solution into the 100 mL beaker and stir in 40 mL of water. Use this
concentration for the series of experiments with the temperature of the solution as the variable. Add 5 mL of acid as before and record the initial time and the temperature of the solution. Record the final time when the black cross below the beaker is no longer visible.Repeat the experiment, each time warming the thiosulphate solution to just over 30oC.
sharon kalunda answered the question on April 12, 2019 at 09:19
- Describe an experiment to show that the rate of a reaction depends on the concentration of the react(s).(Solved)
Describe an experiment to show that the rate of a reaction depends on the concentration of the react(s).
Date posted: April 12, 2019. Answers (1)
- Describe an experiment to show that the rate of a chemical reaction depends on the size of the particle of the reactant(s).(Solved)
Describe an experiment to show that the rate of a chemical reaction depends on the size of the particle of the reactant(s).
Date posted: April 12, 2019. Answers (1)
- Describe an experiment to show that there is electrical energy produced by chemical reactions.(Solved)
Describe an experiment to show that there is electrical energy produced by chemical reactions.
Date posted: April 12, 2019. Answers (1)
- Describe an experiment that can be used to determine the heat of displacement of copper.(Solved)
Describe an experiment that can be used to determine the heat of displacement of copper.
Date posted: April 12, 2019. Answers (1)
- Describe an experiment that can be used to determine the heat of neutralization of a chemical reaction.(Solved)
Describe an experiment that can be used to determine the heat of neutralization of a chemical reaction.
Date posted: April 12, 2019. Answers (1)
- Describe an experiment which shows that some chemical reactions take in heat from the surrounding.(Solved)
Describe an experiment which shows that some chemical reactions take in heat from the surrounding.
Date posted: April 12, 2019. Answers (1)
- Give an experimental procedure to show that some chemical reactions gives out heat.(Solved)
Give an experimental procedure to show that some chemical reactions gives out heat.
Date posted: April 12, 2019. Answers (1)
- Explain how soap is made from fats.(Solved)
Explain how soap is made from fats.
Date posted: April 12, 2019. Answers (1)
- Explain how titration of acids and bases is done in the laboratory.(Solved)
Explain how titration of acids and bases is done in the laboratory.
Date posted: April 12, 2019. Answers (1)
- Describe how magnesium metal reacts with carbon dioxide.(Solved)
Describe how magnesium metal reacts with carbon dioxide.
Date posted: April 12, 2019. Answers (1)
- Explain potassium permanganate is reduced by sulphur dioxide.(Solved)
Explain potassium permanganate is reduced by sulphur dioxide.
Date posted: April 12, 2019. Answers (1)
- How is sulphur dioxide prepared in the laboratory?(Solved)
How is sulphur dioxide prepared in the laboratory?
Date posted: April 12, 2019. Answers (1)
- Describe an experiment to show how hydrogen is displaced from acids by different metals.(Solved)
Describe an experiment to show how hydrogen is displaced from acids by different metals.
Date posted: April 12, 2019. Answers (1)
- Describe how sodium reacts with water.(Solved)
Describe how sodium reacts with water.
Date posted: April 12, 2019. Answers (1)
- Describe an experiment to show how copper is displaced from aqueous solution of copper ions.(Solved)
Describe an experiment to show how copper is displaced from aqueous solution of copper ions.
Date posted: April 12, 2019. Answers (1)
- Describe the electrolysis of water.(Solved)
Describe the electrolysis of water.
Date posted: April 12, 2019. Answers (1)
- Describe the electrolysis of solutions of ionic salts.(Solved)
Describe the electrolysis of solutions of ionic salts.
Date posted: April 12, 2019. Answers (1)
- Describe the electrolysis of lead bromide.(Solved)
Describe the electrolysis of lead bromide.
Date posted: April 12, 2019. Answers (1)
- Describe how electrolysis is used to determine the salts which conduct electricity in solution form.(Solved)
Describe how electrolysis is used to determine the salts which conduct electricity in solution form.
Date posted: April 12, 2019. Answers (1)
- Describe an experiment to show that some liquids conducts electricity.(Solved)
Describe an experiment to show that some liquids conducts electricity.
Date posted: April 12, 2019. Answers (1)