Put about 50 cm3 of water in a beaker and add baking powder, sodium bicarbonate, gradually
while stirring. Potassium sulphate is an alternative substance. Make a saturated solution by
stirring until no more solute will dissolve. Read the temperature of the saturated solution.
Weigh a clean evaporating dish, w1. Add some clear saturated solution and weigh again, w2.
Carefully evaporate the solution in the evaporating dish to dryness and weigh again, w3. The
mass of the sodium bicarbonate dissolved = w3 - w1. The mass of water = w2 - w1 - w3.
Calculate the solubility of the sodium bicarbonate as g per 100 g water at room
temperature.
sharon kalunda answered the question on April 12, 2019 at 06:55
- Name the methods of preparing carboxylic acids?(Solved)
Name the methods of preparing carboxylic acids?
Date posted: April 12, 2019. Answers (1)
- Describe an experiment to show that different salts have different Solubility in water.(Solved)
Describe an experiment to show that different salts have different Solubility in water.
Date posted: April 12, 2019. Answers (1)
- Describe an experiment to show that Pressure affects the boiling point.(Solved)
Describe an experiment to show that Pressure affects the boiling point.
Date posted: April 12, 2019. Answers (1)
- Using a solid naphthalene as an example,describe how impurities affects the melting point of a substance.(Solved)
Using a solid naphthalene as an example,describe how impurities affects the melting point of a substance.
Date posted: April 12, 2019. Answers (1)
- Describe an experiment to show how the two types of flames are produced.(Solved)
Describe an experiment to show how the two types of flames are produced.
Date posted: April 12, 2019. Answers (1)
- Give a brief description of titration.(Solved)
Give a brief description of titration.
Date posted: April 12, 2019. Answers (1)
- How should a Solution or Mixture be transferred from one vessel to another?(Solved)
How should a Solution or Mixture be transferred from one vessel to another?
Date posted: April 12, 2019. Answers (1)
- What does quantitative Transfer mean?(Solved)
What does quantitative Transfer mean?
Date posted: April 12, 2019. Answers (1)
- Describe how a Top-loading Balance is used.(Solved)
Describe how a Top-loading Balance is used.
Date posted: April 12, 2019. Answers (1)
- Explain how a Calorimeter is used.(Solved)
Explain how a Calorimeter is used.
Date posted: April 12, 2019. Answers (1)
- Describe how a Calorimetry is used.(Solved)
Describe how a Calorimetry is used.
Date posted: April 12, 2019. Answers (1)
- Explain how an Analytical Balance is used.(Solved)
Explain how an Analytical Balance is used.
Date posted: April 12, 2019. Answers (1)
- Explain how a Pipette is used.(Solved)
Explain how a Pipette is used.
Date posted: April 12, 2019. Answers (1)
- Explain how graduated Cylinders are used.(Solved)
Explain how graduated Cylinders are used.
Date posted: April 12, 2019. Answers (1)
- Explain how a Volumetric (measuring) Flask is used.(Solved)
Explain how a Volumetric (measuring) Flask is used.
Date posted: April 12, 2019. Answers (1)
- Explain how a burette is used.(Solved)
Explain how a burette is used.
Date posted: April 12, 2019. Answers (1)
- Draw and name the apparatus used in the laboratory.(Solved)
Draw and name the apparatus used in the laboratory.
Date posted: April 12, 2019. Answers (1)
- Describe an experiment to demonstrate the purity of water using boiling point.(Solved)
Describe an experiment to demonstrate the purity of water using boiling point.
Date posted: April 11, 2019. Answers (1)
- State three examples of allotropes of carbon(Solved)
State three examples of allotropes of carbon.
Date posted: April 9, 2019. Answers (1)
- Define the following terms as used in chemistry: atom,molecule, element and compound(Solved)
Define the following terms as used in chemistry: atom,molecule, element and compound
Date posted: April 9, 2019. Answers (1)