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How temperature affects the rate of reaction between sodium thiosulphate and hydrochloric acid.
Member rating: No Rating | Words: | Submitted: Thu Jul 11 2002
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Temp Affecting Reaction Rate We are going to try to find out how temperature affects the rate of reaction between sodium thiosulphate and hydrochloric acid. Na2 S2 O3 + 2HCL ? S(s) + SO2 +NACL + H2O I am going to heat the sodium thiosulphate to five different temperatures, 0?c, 20?c, 40?c, 60?c and 80?c. The sodium thiosulphate concentration will be 20gm/litre. I have chosen this concentration because the results we will obtain will have a wider range. I think this is the case because when we performed the preliminary experiment of how concentration affects the rate of reaction, we came to the conclusion that sodium thiosulphate at 40gm/litre reacted faster than sodium thiosulphate at 10gm/litre. The 40 gm/litre reacted after 30 secs; 30gm/litre after 43 secs, 20gm/litre after 55 secs and 10gm/litre after 93 secs. These results would be ether too quick to precisely record, or too slow to have a range....
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