# chemistry

posted by .

A sample of air from the basement of a home is found to
contain 8.3 ppm of radon. What is the partial pressure of radon
in the basement if the total pressure is 755 torr?

• chemistry -

I assume that is 8.3 ppm v/v; if so I would convert that to percent.
(8.3E-6 L/10^6 L)* 100 = mole percent = about 8.3E-10%. Convert that to a fraction (divide by 100) to give mole fraction Rn_, then
pRn = XRnPtotal

• chemistry -

I erred here. 8.3 ppm should be expressed as 8.3E-6 mole fraction Rn.

## Similar Questions

1. ### math

A random sample of the houses in a particular city is selected and each of the houses in a particular city is selected and each of the house's level of radon gas is measured. The values collected are given in the table below in parts …
2. ### Chem

A 12.3 vessel was found to contain N2, Ar He, and He. The total pressure in the vessel was 987 torr and the partial pressures of nitrogen, argon, and helium were 44 torr, 486 torr, and 218 torr, respectively. What was the pressure …
3. ### chemistry urgent

a mixture of NO, CO2, and O2 gases has a total pressure of 2.5x10^3 torr. if the partial pressure of NO is 800 torr and CO2 is 600 torr, what is the partial pressure of O2?
4. ### chemistry

A gas mixture contains oxygen and argon at partial pressures of 0.60 atm and 425 mmhg. If nitrogen gas added to the sample increases the total pressure to 1250 torr, what is the partial pressure in torr?
5. ### Chemistry

Recently, there has been much concern about pollution in the home from radon, a radioactive gas whose elemental molar mass is 222 g/mol. The Environmental Protection Agency say that a level or radon of 3.6 X 10-11 giL of air is unhealthy. …

A sample consisting of various gases contains 2.6 10-6 mole fraction of radon. This gas at a total pressure of 37 atm is shaken with water at 30°C. Calculate the molar concentration of radon in the water. Can somepne please provide …
7. ### statistics

A random sample of the houses in a particular city is selected and the level of radon gas is measured for each house in the sample. The values collected are given below in parts per million (ppm). Experience has shown that radon gas …
8. ### chemistry

The safe level of radon gas at home is 4X10e-12 Ci/L or less. If you measure radon levels in the basement what is the maximum number of Ci that could be safe to find in a basement with dimensions of 12 ft x 15 ft x 6 ft?
9. ### ccbc

A 12.3 vessel was found to contain N2, Ar He, and He. The total pressure in the vessel was 987 torr and the partial pressures of nitrogen, argon, and helium were 44 torr, 486 torr, and 218 torr, respectively. What was the pressure …
10. ### college chemistry

The air in a typical La Crosse basement contains 53 atoms of 222Rn per liter. A. If the basement has 950 ft^2 of floor space and is 8.0 feet tall, how many 222Rn atoms are there in the whole basement?

More Similar Questions