A student heated a hydrated salt sample with an inital mass of4.8702g. After the
ID: 75385 • Letter: A
Question
A student heated a hydrated salt sample with an inital mass of4.8702g. After the first heating, the mass had decreased to3.0662g. a) If the same was heated to constant weight after reheating,what is the minimum mass that the sample can have after the secondweighing? Show how you determined the answer b) Teh student determined that the mass lost by the same was1.8053. What was the percent water in the original hydrated sample?Show calculation setup A student heated a hydrated salt sample with an inital mass of4.8702g. After the first heating, the mass had decreased to3.0662g. a) If the same was heated to constant weight after reheating,what is the minimum mass that the sample can have after the secondweighing? Show how you determined the answer b) Teh student determined that the mass lost by the same was1.8053. What was the percent water in the original hydrated sample?Show calculation setupExplanation / Answer
A student heated a hydrated salt sample with an inital mass of 4.8702g. After the first heating, the mass had decreased to 3.0662g.
a) If the same was heated to constant weight after reheating,what is the minimum mass that the sample can have after the secondweighing? Show how you determined the answer
the minimum mass of salt is 3.0662g there is no other water lost.
b) Teh student determined that the mass lost by the same was 1.8053. What was the percent water in the original hydrated sample?Show calculation setup
% of water = mass of water / total sample mass *100
=[ 1.8053 g/ 4.8702g] *100
= 37.07 %
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