Friday
December 13, 2013

Total # Posts: 73

Chemistry
If 17.14 grams of nitric acid are reacted with a large amount of aluminum metal, what volume of of hydrogen gas would be produced at STP? What would be the balanced equation for this problem?

Chemistry
What mass of water, in grams, would have to be decomposed to produce 13.3 L of molecular oxygen at STP? How do I go about doing this problem?

Chemistry
If 16.01 grams of sulfuric acid are reacted with a large amount of aluminum metal, what volume of hydrogen gas would be produced at STP? What is the balanced equation?

Chemistry
At STP, 461 mL of a gas have a mass of 1.88 g. What is the molar mass of the gas?

Chemistry
Thank you Dr. Bob!

Chemistry
Question: What is the maximum number of liters of HNO3(g) that can be made from 14.88 L of H2O(g) and 10.66 L of NO2(g) at STP? 3 NO2(g) + H2O(g) ==> 2 HNO3(g) + NO(g) I have no idea how to do this. Please help if you can.

Chemistry
I realize my mistake now.

Chemistry
Oops, the 101 is 10^1, Sorry.

Chemistry
Question: A sample of Freon-12 (CF2Cl2) occupies 2.261 x 101 L at 337 K and 2.917 x 102 kPa. Find its volume (in L) at standard temperature and pressure (STP). Equation: p1v1/t1=p2v2/t2 My Work: (2.917 x 102 kPa)(2.261x101 L)/337K = (101.3 kpa)( x )/273 k My Answer: 543.4 L Is...

Chemistry
I posted this question earlier, but I believe it was a bit confusing in the way I typed it. Given the following two step reaction: 4 P + 5 O2 -> P4O10 P4O10 + 6 H2O -> 4H3PO4 If you have 8.28 g of P, 15.65 g of O2, and 19.95 g of H2O, how many grams of H3PO4 can be produ...

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