CAPE Chemistry Unit 2 · 2014 · Paper 2 · Question 2(c)
State ONE example of the use of gravimetric analysis in quality control.
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Practise this questionOther parts of this question
- 2(a)(i)Use an arrow to indicate, below the sketch, the direction of increasing frequency.[1 mark]
- 2(a)(ii)Identify the region (A, B or C) where EACH of Infrared and X-rays may be found.[2 marks]
- 2(b)Calculate the wavelength of electromagnetic radiation with frequency of 4.5 x 10^15 Hz. (Velocity of light = 3.0 x 10^8 m s^-1)[2 marks]
- 2(d)(i)State the purpose for performing Step 1 and Step 4.[2 marks]
- 2(d)(ii)State TWO pieces of apparatus that should be used in Step 2.[2 marks]
- 2(d)(iii)State the apparatus that should be used in Step 3.[1 mark]
- 2(e)Calculate the value of x in the formula Na2SO4.xH2O.[4 marks]
More practice: the rest of this paper · more Gravimetric Methods of Analysis questions · all CAPE Chemistry Unit 2 past papers