Problem: Consider the following reaction:2 NiO(s) → 2Ni(s) + O2(g)If O2 is collected over water at 40.0 oC and a total pressure of 746 mmHg , what volume of gas will be collected for the complete reaction of 24.79 g of NiO?

FREE Expert Solution

Dalton’s Law 


• at 40°C, water has a vapor pressure of 55.3 mmHg


Ptotal=PGas 1+PGas 2+PGas 3...Ptotal=PO2+Pwater746 mmHg=PO2+50.3 mmHgPO2=746 mmHg-50.3 mmHgPO2=695.7 mmHg×1 atm760 mmHg

PO2=0.915 atm

View Complete Written Solution
Problem Details

Consider the following reaction:
2 NiO(s) → 2Ni(s) + O2(g)

If O2 is collected over water at 40.0 oC and a total pressure of 746 mmHg , what volume of gas will be collected for the complete reaction of 24.79 g of NiO?

All Chemistry Practice Problems Collecting Gas Over Water Practice Problems
Q.Hydrogen peroxide (H2O2) decomposes in the presence of a catalyst to form water and oxygen. The catalyst is added to 5.00 mL of a hydrogen peroxide so...
Q.The zinc in a copper-plated penny will dissolve in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric ac...
Q.The following reaction forms 15.1 g of Ag(s):What total volume of gas forms if it is collected over water at a temperature of 25 oC and a total pressu...
Q.When a gas is collected over water, is the gas pure?
See all problems in Collecting Gas Over Water

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Collecting Gas Over Water concept. If you need more Collecting Gas Over Water practice, you can also practice Collecting Gas Over Water practice problems.