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QUESTION 3 a) Name a glassware for each of labelled 'TC' and 'TD'. (2 marks) b) A pipette is used to deliver a specified volume of solution. State the type of pipette that would use to transfer the following volume of: I – 50 mL II – 10 µL (2 marks) c) An experiment calls for you to titrate 0.15M solution of NaOH with a solution of HCl of unknown concentration. Describe laboratory equipment should you use for this experiment and proper techniques apply for the experiment. (3 marks) d) An empty 10mL volumetric flask weighs 10.2634 g. When filled to the mark with distilled water and weighed again in the air at 20°C, the mass is 20.2244 g. [Density of water at 20°C = 0.9982071 g/mL]. i) Determine the true volume of the flask at 20°C. (2 marks) ii) Predict the most likely factor to cause serious error in the result. (1 marks) iii) Discuss whether a 10mL volumetric flask should be used to measure out 10 mL of solution to be added to another vessel. (2 marks)

          QUESTION 3
a) Name a glassware for each of labelled 'TC' and 'TD'. (2 marks)
b) A pipette is used to deliver a specified volume of solution. State the type of pipette that would use to transfer the following volume of:
I – 50 mL
II – 10 µL (2 marks)
c) An experiment calls for you to titrate 0.15M solution of NaOH with a solution of HCl of unknown concentration. Describe laboratory equipment should you use for this experiment and proper techniques apply for the experiment. (3 marks)
d) An empty 10mL volumetric flask weighs 10.2634 g. When filled to the mark with distilled water and weighed again in the air at 20°C, the mass is 20.2244 g. [Density of water at 20°C = 0.9982071 g/mL].
i) Determine the true volume of the flask at 20°C. (2 marks)
ii) Predict the most likely factor to cause serious error in the result. (1 marks)
iii) Discuss whether a 10mL volumetric flask should be used to measure out 10 mL of solution to be added to another vessel. (2 marks)

QUESTION 3
a) Name a glassware for each of labelled 'TC' and 'TD'. (2 marks)
b) A pipette is used to deliver a specified volume of solution. State the type of pipette that would use to transfer the following volume of:
I – 50 mL
II – 10 µL (2 marks)
c) An experiment calls for you to titrate 0.15M solution of NaOH with a solution of HCl of unknown concentration. Describe laboratory equipment should you use for this experiment and proper techniques apply for the experiment. (3 marks)
d) An empty 10mL volumetric flask weighs 10.2634 g. When filled to the mark with distilled water and weighed again in the air at 20°C, the mass is 20.2244 g. [Density of water at 20°C = 0.9982071 g/mL].
i) Determine the true volume of the flask at 20°C. (2 marks)
ii) Predict the most likely factor to cause serious error in the result. (1 marks)
iii) Discuss whether a 10mL volumetric flask should be used to measure out 10 mL of solution to be added to another vessel. (2 marks)

Added by Katherine O.

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