faisalabdul16
Wot
- Joined
- Feb 16, 2014
- Messages
- 2,258
- Gender
- Male
- HSC
- 2014
Post some of the hard calculation questions you guys have come across in papers!
Here's one to start off with -
A student carried out an investigation to analyse lawn fertiliser. The student weighed out 1.00 g of fertiliser containing 24.0 % sulfur (S) and dissolved it in water. 100 mL of 0.20 mol L1 barium chloride solution was then added and a precipitate formed.
(a) Calculate the theoretical percentage by mass of sulfate in the fertiliser.
After you've answered a question please post up another one.
Here's one to start off with -
A student carried out an investigation to analyse lawn fertiliser. The student weighed out 1.00 g of fertiliser containing 24.0 % sulfur (S) and dissolved it in water. 100 mL of 0.20 mol L1 barium chloride solution was then added and a precipitate formed.
(a) Calculate the theoretical percentage by mass of sulfate in the fertiliser.
After you've answered a question please post up another one.
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