# According to the following reaction, how many grams of hydrogen peroxide (#H_2O_2#) are necessary to form 0.182 moles oxygen gas?

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hydrogen peroxide (#H_2O_2# ) (aq) #-># water (l) + oxygen (g)

hydrogen peroxide (

##### 1 Answer

Mar 4, 2017

#### Answer:

12.736 grams of hydrogen peroxide. please read explanation.

#### Explanation:

As per the mole ratio, 2 moles of hydrogen peroxide burns to form 1 mole of oxygen. The ratio is 2:1.

steps :

multiply 0.182 with 2 to find out total moles of hydrogen peroxide

answer = 0.364

to convert from moles to grams multiply the moles with molar mass

molar mass of hydrogen peroxide = 34

0.364*34 = 12.376 grams of hydrogen peroxide