Santa Cruz
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1. A sample of a compound analyzed in a chemistry laboratory consists of 5.34 g of carbon, 0.42 g of hydrogen, and 47.08 g of chlorine. What is the percent composition of this compound?
3. If 3.907 g of carbon combines completely with 0.874 of hydrogen to form a compound, what is the percent composition of this compound?
5. How many grams of aluminum are in 25. 0 g of aluminum oxide (Al2O3)?
7. Determine the empirical formula of each of the following compounds from the percent composition:
a. 7.8% carbon and 92.2% chlorine
b. 10.0% C, 0.80% H, 89.1% Cl
Show STEP by STEP not just the answer! Thank you! (Best answer 10 points)
3. If 3.907 g of carbon combines completely with 0.874 of hydrogen to form a compound, what is the percent composition of this compound?
5. How many grams of aluminum are in 25. 0 g of aluminum oxide (Al2O3)?
7. Determine the empirical formula of each of the following compounds from the percent composition:
a. 7.8% carbon and 92.2% chlorine
b. 10.0% C, 0.80% H, 89.1% Cl
Show STEP by STEP not just the answer! Thank you! (Best answer 10 points)