Monday

October 20, 2014

October 20, 2014

Posted by **Anonymous** on Thursday, April 29, 2010 at 9:21am.

I got PO= 5.82, PHe=15.5 and Ptotal=21.4 but it says that PO and Ptotatl are wrong, can anyone help?

- Chemistry -
**drwls**, Thursday, April 29, 2010 at 10:43amYour bottle contains 1.57 moles of O2 and 8.35 moles of He, for a total of 9.92 moles. At STP, that gas would occupy 222 liters; at 22 C and 1 atm, it would occupy 240 liters. Since the vlume is 13.0 L, the pressure must be Ptotal = 240/13 = 18.8 atm

The partial pressure of O2 is 15.9% of the total pressure, or 2.98 atm

Your mistake may be in using 16 instead of 32 for the (molecular) weight of oxygen.

**Answer this Question**

**Related Questions**

chemistry - A deep sea diver uses a gas cylinder of 10.0 L and a content of 51.4...

chemistry - a closed gas cylinder contains 0.500 mole h2, 0.300 mole o2, 1.200 ...

English - 1. How is paraphrasing different from summarizing? A.) Paraphrasing ...

English - Which of the following sentences uses CORRECT punctuation? A.) Sharks ...

chem - 6.01-L cylinder contains 1.25 mol of gas A and 4.54 mol of gas B, at a ...

chem - 6.01-L cylinder contains 1.25 mol of gas A and 4.54 mol of gas B, at a ...

pressure - a 6.04L cylinder contains 1.71mol of gas A and 4.35 mol of gas B, at ...

chemsity - A 6.48-L cylinder contains 1.48 mol of gas A and 4.80 mol of gas B, ...

Chemistry - 1. Calculate the number of molecules in a deep breath of air whose ...

chemistry 2 - The volume of blood in the body of a certain deep-sea diver is 6....