Voltman
07-28-2009, 02:13 AM
During a practical class, a student was asked to determine the solubility of AgNO3 in water at 30 degrees celcius. The student was instructed to dissolve as much AgNO3 as possible in 50 g of water in a 100 mL beaker at a temperature of 30 degrees celcius. The result obtained was higher than the expected value.
Which of the following could account for the higher than expected value?
A) The water temperature in the beaker was 20 degrees celcius, not 30 degrees celcius.
B) An 80 mL beaker was used instead of a 100 mL beaker.
C) 55 g of water was used, not 50 g.
D) The student did not stir the solution adequately.
Any thoughts on the above will be appreciated! I don't think the answer is A or B but unsure whether it is C or D due to the wording of the question.
Which of the following could account for the higher than expected value?
A) The water temperature in the beaker was 20 degrees celcius, not 30 degrees celcius.
B) An 80 mL beaker was used instead of a 100 mL beaker.
C) 55 g of water was used, not 50 g.
D) The student did not stir the solution adequately.
Any thoughts on the above will be appreciated! I don't think the answer is A or B but unsure whether it is C or D due to the wording of the question.