MnO2+4HCl→2H2O+MnCl2+Cl2 The reaction of MnO2 and HCl produces 2.24L of Cl2 gas. What mass of MnO2 was used up by the reaction? (At. mass of Mn=55g/mol)
A
7.19g
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B
8.7g
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C
2.24g
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D
18.69
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Solution
The correct option is D8.7g MnO2+4HCl→MnCl2+Cl2+2H2O
1mole of MnO2 produces 22.4Litres of Cl2 in the reaction at STP.