Chemistry
lakynpresler
2016-04-29 06:40:42
A substance contains 35.0 g nitrogen, 5.05 g hydrogen, and 60.0 g of oxygen. how many grams of hydrogen are there in a 153-g sample of this substance
ANSWERS
gilu
2016-04-29 13:20:23

m(N)=35.0 g m(H)=5.05 g m(O)=60.0 g m₁=153 g m₀=m(N)+m(H)+m(O) w(H)=m(H)/m₀=m(H)/[m(N)+m(H)+m(O)] m₁(H)=w(H)m₁=m₁m(H)/[m(N)+m(H)+m(O)] m₁(H)=153×5.05/[35.0+5.05+60.0]=7.72 g 7.72 g

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