Homework Help: Chemistry

Posted by AJ on Monday, February 4, 2008 at 10:12pm.

In a car gas tank, 46.0 g of gasoline burns consuming 173 g of oxygen. The resultant products are carbon dioxide are carbon dixide and water. What is the total combined mass of the products?

Would it be 173g - 46.0g = 127g

Chemistry - drbob222, Monday, February 4, 2008 at 11:30pm
46.0 g gasoline + 173 g oxygen = total mass to start of 219.0 grams. Since CO2 and H2O are the only products formed, their total weight must be 219.0 grams. Law of conservation of mass. Check my arithmetic.
Chemistry - Ayeisha, Tuesday, February 5, 2008 at 8:38am
Oh! I get it thanks!

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