ZnS + H2SO4 = ZnSO4 + H2S
20g--------100%
xg----------75%
xg=15g
97g---------1mol
15g----------xmola
xmola=0,15mola
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ZnS + H2SO4 = ZnSO4 + H2S
20g--------100%
xg----------75%
xg=15g
97g---------1mol
15g----------xmola
xmola=0,15mola