Chemistry, 08.04.2021 01:00 wonderwonder2748
In the lab, you dilute 20.5 mL of a 2.6 M solution to make 205 mL of solution.
Calculate the molarity of the new solution. Record your answer with two decimal
places. Write the number only, no units.
Answers: 3
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Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.
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Chemistry, 23.06.2019 07:30
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)๏ฎsno2(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.
Answers: 2
In the lab, you dilute 20.5 mL of a 2.6 M solution to make 205 mL of solution.
Calculate the molari...
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