Chemistry, 06.08.2021 15:50 kayranicole1
A chemist designs a galvanic cell that uses these two half-reactions half-reaction standard reduction potential Zn' (aq)+2e - Zn(s) red0.763 CrO4 (aq)+4H200)+3e - Cr(OH)3(s)+5OH (aq) Fred0.13 v Answer the following questions about this cel Write a balanced equation for the half-reaction that happens at the cathode Write a balanced equation for the half-reaction that happens at the anode Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written. Do you have enough information to calculate the cell voltage under standard conditions?
Yes
No
If you said it was possible to calculate the cell voltage, do so and enter your answerV here. Be sure your answer has the correct number of significant digits
Answers: 2
Chemistry, 22.06.2019 13:00
Is 9 correct? and can someone me with 10? itβs due tomorrow, you
Answers: 1
Chemistry, 22.06.2019 13:00
Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.
Answers: 1
Chemistry, 22.06.2019 16:50
Which element is least likely to undergo a chemical reaction
Answers: 3
A chemist designs a galvanic cell that uses these two half-reactions half-reaction standard reductio...
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