Answer to Question #252527 in General Chemistry for Ashley

Question #252527

Selenium dioxide, a medicine that is used for the treatment of stroke, hardening of arteries, and cancers, is prepared by a reaction of selenium with hydrogen peroxide:

2H2O2 + Se → SeO2 + 2H2O

How many moles of H2O2 are required to produce 11g SeO2 according to the equation?


1
Expert's answer
2021-10-17T11:18:23-0400

"2H_2O_2 + Se \u2192 SeO_2 + 2H_2O\\\\"


11g of SeO2 = 11/111 = ~0.1 mole


2 moles of H2O2 reacts with one mole of SeO2

"\\therefore" 0.2 moles of H2O2 is needed for the reaction.


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