Chemistry, 24.12.2019 22:31 weirdojuwin
Radioactive elements decay via first-order kinetics. consider a certain type of nucleus that has a rate constant of 2.4 × 10–2 h–1. a sample contains 6.5 × 108 radioactive nuclides. calculate the time required for 59% of the nuclides to decompose.
Answers: 3
Chemistry, 22.06.2019 06:00
One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)
Answers: 1
Chemistry, 22.06.2019 21:30
In one or two grammatically correct sentences, write a definition for the term molecule geometry
Answers: 3
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)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.
Answers: 2
Radioactive elements decay via first-order kinetics. consider a certain type of nucleus that has a r...
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