Could someone please help with the following questions?
Gases usually possess negative volumes when the temperature falls below -273.15K.
I believe this is false?
A glass column is filled with mercury and inverted in a pool of mercury. The mercury column stabilized at a height of 735mm above the pool of mercury. What is the pressure at the atmosphere?
I think this would be 0.967 atm?
Gas A effuses three times as fast as gas B. Gas B has a MM = 120.g/mol. What is the Molar Mass of gas A?
I believe the answer is 13.3g/mol?
If gas A effuses at twice the rate of gas B, what is the ratio of the molar masses (B/A)?
How much faster will gas A (MM=44) effuse than gas B (MM=120.)?
A excess of phosphorus reacts with 4.0L of H2. How many liters of PH3 are produced at the same temperature and pressure as that of hydrogen? P4(s) + 6H2(g) --> 4PH3(g)
2007-11-05 16:54:51 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Your first three answers are correct. It appears that you know that the rate of effusion is inversely proportional to the square root of molecular mass, so you should be able to use that to solve the other two effusion questions. I get B/A = 4/1, and 1.65 times as fast. For the hydrogen-phosphorous reaction, I believe the answer is 2.67 L, but I'm less sure of that one.
2007-11-08 05:58:33 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋