# I don't know that was important, so I burned it

Chemistry Level 2

There is 7.5 g of an unknown compound which contains only $$\ce{C}$$, $$\ce{H}$$ and $$\ce{O}.$$ Before Brilli the scientist could analyze what it is, Harry burned it. Fortunately, the smart scientist collected all the products, which were 11 grams of carbon dioxide and 4.5 grams of water. He then concluded that the empirical formula of the unknown compound is $$\text{C}_x\text{H}_y\text{O}_z.$$ What is the value of $$x+y+z$$?

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