Posted by **E** on Friday, March 4, 2011 at 3:24pm.

1. A cylinder of Xenon has a volume of 750. ml. At 25.0°C the cylinder has a pressure of 655 torr. How much Argon is present in the cylinder?

a. 240. moles

b. 0.0264 moles

c. .315 moles

d. 26.5 moles

2.If a 25 liter cylinder of gaseous ammonia at atmospheric pressure (1.0 atm) is heated from 50°C to 450°C, what is the final pressure?

a. 9.0 atm

b. 0.11 atm

c. 0.45 atm

d. 2.2 atm

3.What are the relative rates of effusion of molecular hydrogen and molecular oxygen?

a. 2

b. 0.5

c. 4

d. 1

4.An unknown gas has a molecular weight of 30.07 g/mol. What is the density of the gas at STP?

a. 1.3 x 10-3 g/cm3

b. .0385 g/cm3

c. 1.5 g/cm3

d. 3.1 x 10-4 g/cm3

## Answer This Question

## Related Questions

- chemistry - A cylinder contains 12.0L of air at a total pressure of 44.0psi and ...
- Science chemistry - a steel cylinder of oxygen with a volume of 15 L was ...
- Chemistry - I need help with part b here's all information. (a) Chlorine gas is ...
- Physics - A clown at a birthday party has brought along a helium cylinder, with ...
- Chemistry - A steel cylinder contains 98.0 moles of oxygen gas at temperature of...
- chemistry - Initially, there are 33 moles of A and 0 moles of B. How many moles ...
- Science - a steel cylinder of oxygen with a volume of 15 L was available for ...
- Physics - A clown at a birthday party has brought along a helium cylinder, with ...
- AP Chemistry - Three gases, xenon, helium, and hydrogen are confined in a 10.0 L...
- Chemistry - A 6.00 ft cylinder has a radius of 26 in. It contains 189 lb of ...

More Related Questions