01/14/20

If 32.9 grams of carbon monoxide and 18.8 grams of oxygen combine to form carbon dioxide, how many grams of carbon dioxide must form?
Under certain conditions, the substances carbon monoxide and oxygen combine to form carbon dioxide.If 32.9 grams of carbon monoxide and 18.8 grams of oxygen combine to form carbon dioxide, how many... more
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01/14/20

A cylinder is found to have a total pressure of 1519.5kPa. If there were 2.0 moles of oxygen, 5.0 moles of He, and 7.0 moles of nitrogen, what would the partial pressure of each be?
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01/14/20

Some oxygen gas was placed in a 3.0L cylinder. This cylinder originally had a pressure of 1.00 atm because of the air already inside.

 If the oxygen gas was originally in a 1.0L cylinder at a pressure of 1.0 atm, what would be the new pressure of the mixed gases in the 3.0L cylinder?
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01/13/20

You react 2.0 g of O2 and collect 1.40 g of N2 gas. What is your percent yield?
N2H4+O2=N2+2H2Opartial answer: 7X.XX%
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01/13/20

I start with 67.8 g of NaBr and excess chlorine gas. What is my theoretical yield of NaCl? b. I end up with a percent yield of 82.30%. What was the actual yield of NaCl?
NaBr+Cl2=Br2+NaClpartial answer: 3X.X g NaCl and 3X.X g NaCl
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01/12/20

chem 151 mass and density

Calculate these masses.(a)What is the mass (in g) of 5.75 cm3 of palladium, density = 12.00 g/cm3?(b)What is the mass (in g) of 30.0 mL cyclohexane, density = 0.779 g/cm3?
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