Part A and B please A) Use the standard half-cell potentials listed below to cal

Question

Part A and B please

A) Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.)
2F2(g) + Mn(s) 4 F-(aq) + Mn2+(aq)

e)1.69 V

B) Balance the following redox reaction if it occurs in H2SO4. What are the coefficients in front of H2O and Cr2(SO4)3 in the balanced reaction?

C3H8O2(aq) + K2Cr2O7(aq) C3H4O4(aq) + Cr2(SO4)3(aq)

Explanation / Answer

Answer:-

Part A

b). 4.05 V

Because, Eocell = 2.87 + 1.18

= 4.05 V

Part B

The balanced equation is given as follows,

3C3H8O2(aq) + 4K2Cr2O7(aq) + 16H2SO4(aq) -------> 3C3H4O4(aq) + 4Cr2(SO4)3 + 4K2SO4(aq) + 22H2O(l)

So, a). H2O = 22 , Cr2(SO4)3 = 4

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