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22 Sep 2018

Q10. Which species is diamagnetic? a) Cr2+ b) Zn c) Mn d) C

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Casey Durgan
Casey DurganLv2
22 Sep 2018
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Joey Tang
Joey Tang
Bachelor’s Degree in Chemistry from McMaster University
23 Apr 2020

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Related questions

Which species is diamagnetic?
a. Cr2+
b. Zn
c. Mn
d. C

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)

F2(g) + e- → 2 F-(aq) E° = +2.87 V
Mn2+(aq) + 2 e- → Mn(s) E° = -1.18 V
a) +2.87 V
b) 4.050 V
c) -4.050 V
d) -4.060 V

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)

a) H2O = 22, Cr2(SO4)3 = 4
b) H2O = 5, Cr2(SO4)3 = 2
c) H2O = 8, Cr2(SO4)3 = 2
d) H2O = 11, Cr2(SO4)3 = 4
e) H2O = 1, Cr2(SO4)3 = 5

Which of the following species is diamagnetic?

(a) O2

(b) B2

(c) C2

(d) N2+

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