Determine the mass of Zn(OH)2 produced.

User Generated

pbaorgu

Science

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.

 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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