1.

What mass of MnO_2is reduced by 35mL of 0.16N oxalic acid in acid solution ? The skeleton equation is, MnO_(2) + H^(+) + H_(2)C_(2)O_(4) rarr CO_2+H_2O+Mn^(2+)

Answer»

8.7 G
0.24 g
0.84 g
43.5 g

SOLUTION :`1000xx(W)/55xx2=35xx0.16`
`w = (35xx0.16xx55)/2000`
`3x = -8 , w =(0.16xx35xx55)/(2xx1000)=024 g`


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