Calculate the number of moles in 17 gram of H2O2.
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molecular mass of h2o2 is : 2x1+2x16 =2+32=34.
now, mass of h2o2 is: 17(given)
the number of moles =
mass of compound÷molecular mass
or, number of moles= 17÷34
=1/2=0.5
Ans) hence, the number of moles in 17 grams of h2o2 is 0.5
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