Carbon and oxygen react in ratio of 3:8 by mass to form CO2. What weight of carbon should be used to react completely with 32gram of oxygen?

1 Answer
David Drayer
Apr 30, 2018

12io

Explanation:

# 2 xx 0 = 2 xx 16 = 32# This means that the molecule has two atoms of Oxygen er

# CO_2 # has a ratio of 1 C for every 2 O.

As there are two Os there must be only 1 C

# 1 xx C = 1 xx 12 = 12#

There are 12 grams of Carbon.

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