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Heh School estimate: 99.10 Adrita estimate: 95.00 Actual: 99.70

Marks are in sequential order, i -> 1 mark, ii -> 1 mark ,etc.. I believe i) is simply HCl + NaOH --> NaCl + H2O Other than that, the rest are correct - just cut back on the number of significant figures :).

I think we'll get a good calculation question this year. Try this one: The solubility of highly soluble, thermally unstable salts such as ammonium chloride may be determined by back titration. In one experiment a 5.00 mL saturated solution of ammonium chloride, NH4Cl, at 20oC, was...

About what I was expecting, thank you.

School rank averages 140-180. Internal ranks- English (Advanced)- 1/40 Mathematics Extension 1- 4/64 Mathematics Extension 2 - 3/33 Chemistry - 2/83 Economics - 1/51 Thanks in advance :)

School Rank - fluctuates quite a bit year by year, but generally around 170-200. Ranks (first semester report): English Advanced: 1/39 MX1: 9/73 MX2: 6/33 Chemistry: 1/85 Economics: 1/53 Thanks in advance :).