3 years ago

Please help me with this question

Chemistry

1 answer:

yKpoI14uk [10]3 years ago

6 0

The mass of oxygen is 236.4 g.

Explanation:

To find the mass of oxygen in 325 g of carbon dioxide (CO₂) we follow the next algorithm.

First we calculate the molar weight of carbon dioxide:

molar weight of CO₂ = molar weight of carbon × 1 + molar weight of oxygen × 2

molar weight of CO₂ = 12 × 1 + 16 × 2 = 44 g/mole

Now we devise the following reasoning:

if in 44 g of CO₂ there are 32 g of oxygen

then in 325 g of CO₂ there are X g of oxygen

X = (32 × 325) / 44 = 236.4 g oxygen

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molar weight

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