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Chemistry, 24.07.2020 02:01 jeronimo18
Suggest a way that a scientist could create an even more accurate model of universe expansion
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Chemistry, 23.06.2019 07:30, jessicawelch25
In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.
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Chemistry, 23.06.2019 09:00, cathyfrawley
Chortling is used to clean water. another possible atom that would also work is a. sodium b. sulfur c. bromine
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