1.
A household cleaning agent contains a weak base of general formula NaX.
1.00 g of this compound was dissolved in 100.0 mL of water. A 20.0 mL sample of the solution was titrated with 0.1000 mol L
A household cleaning agent contains a weak base of general formula NaX.
1.00 g of this compound was dissolved in 100.0 mL of water. A 20.0 mL sample of the solution was titrated with 0.1000 mol L
–1 hydrochloric acid and required 24.4 mL of the acid for neutralisation.
What is the molar mass of this base?
2. Explain the effect of liquefying the ammonia on the yield of the reaction.
3. The student prepared solutions from four different soil samples around his
home. These solutions were also analysed using the same method.
State a hypothesis to account for the variation in lead concentration around a student’s home.
2. Explain the effect of liquefying the ammonia on the yield of the reaction.
3. The student prepared solutions from four different soil samples around his
home. These solutions were also analysed using the same method.
State a hypothesis to account for the variation in lead concentration around a student’s home.