Description
An alkaline battery produces electrical energy according to the following equation.
Zn(s) + 2 MnO2(s) + H2O(l) Zn(OH)2(s) + Mn2O3(s)
(a) Determine the limiting reactant if 38.5 g Zn and 49.0 g MnO2 are used. (Type your answer using the format CH4 for CH4.)
(b) Determine the mass of Zn(OH)2 produced.
(b) Determine the mass of Zn(OH)2 produced.
g
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Explanation & Answer
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zn is 102
mno2 =98
38.5/102 = 0.3
mno2= 49/98= 0.5moles
zn is in a limit reaction
mass of zn[oH]2
102= 0.3 grames
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