appendiks permangano

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APPENDIKS Membuat Larutan KMnO 4 0,1 N KMnO 4 K + + MnO 4 - MnO 4 - 8H + + 5e - Mn 2+ + 4H 2 O N = M*e 0,1 = M*5 M = 0,1 5 = 0,02 M M = gr Mr × 1000 V 0,02 = gr 158 × 1000 1000 m = 3,16 gram Membuat Larutan Oksalat 0,1 N H 2 C 2 O 4 2H + + C 2 O 4 2- N = M*e 0,1 = M*2 M = 0,1 2 M = 0,05 M = gr Mr × 1000 V 0,05 = gr 126 × 1000 1000 m = 6,3 gram

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Page 1: APPENDIKS permangano

APPENDIKS Membuat Larutan KMnO4 0,1 N

KMnO4 K+ + MnO4-

MnO4- 8H+ + 5e- Mn2+ + 4H2O

N = M*e0,1 = M*5

M = 0,15

= 0,02 M

M = grMr

×1000V

0,02 = gr

158 ×10001000

m = 3,16 gram

Membuat Larutan Oksalat 0,1 N

H2C2O4 2H+ + C2O42-

N = M*e0,1 = M*2

M = 0,12

M = 0,05

M = grMr

×1000V

0,05 = gr

126 ×10001000

m = 6,3 gram