# Hydrogen and oxygen combine in the ratio 1:8 by mass to form water. What mass of oxygen gas would be required to react completely with 4g of hydrogen gas.

2
by ritsu

2015-02-08T20:18:33+05:30

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RATIO = 1:8
Hydrogen = 4 g ( 1 x 4 )

Oxygen = 8 x 4 = 32 g

yeah
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2015-02-08T20:33:32+05:30

### This Is a Certified Answer

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H₂ + 1/2 O₂ ⇒ H₂O
2gm  16 gm      18 gm
4gm of H₂⇒ ×4 gm

Answer is 32 gm of O₂ is formed from 4gm of H₂
one more question elements A ands B COMBINE IN THE RATIOS OF THEIR equivalent ways why