# Chemistry Combined Gas Law

posted by .

Hi so im reviewing or our long test tomorrow on combined gas law and gay lussac's

well here, combined gas law i find it (maybe ) confusing to do this one, because theres no right answers because it is a practice exercise..
what i know on combined gas law is that pressure is inversely proportional to the volume.pressure directly prporional to temperature. i got hooked up in these problem where all (P,V,T) are decreased ( the way i solved it )

here it is :

a gas measures 10 ml at 27 degrees celsius and 760 mm hg. what will be the volume of the gas at 15 degrees celsius and 750 mm hg ? help me please

• Chemistry Combined Gas Law -

combined gas law:

p1V1/T1=P2V2/T2

you are looking for V2

V2=P1/P2 * V1*T2/T1
= 760/750 * 10ml*(15+273)/(27+273)

• Chemistry Combined Gas Law -

760/750*10*285/300=9.595

## Similar Questions

1. ### Chem

A bicycle tire is filled with air to a pressure of 100 psi at a temperature of 19C. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58C. The volume increases by 4%. What is the new pressure of the tire?
2. ### chem. Combined Gas laws

A gas takes up a volume of 17 liters, has a pressure of 2.3 atm, and a temperature of 299K. If I raise the temperature to 350K and lower the pressure to 1.5 atm, what is the new volume of the gas?
3. ### chemistry

what is the difference between the combined gas law and the ideal gas law?
4. ### chemistry

1. what gas law does the nitric oxide relate to and why?
5. ### Physical science

I need help with the gas laws (Boyle's, Charle's, Gay-Lussac's & the combined gas law). A sample of 6.00 liters of xenon is collected at 960 mm Hg and 50 degrees Celsius. What is the volume at STP?
6. ### Chemisrty

Determine which law is appropriate for solving the following problem. What volume will 1.56 liters of a gas at 27°C and 745 mmHg of pressure occupy at 100°C and 700 mmHg of pressure?
7. ### chemistry

a sample of nitrogen gas has a volume of 1.00 l at STP What is the temp in Celsius if the volume is 10.0 L at 2.00 atm * I know to use the combined gas law, and I got the question wrong in my homework assignment, reviewing for a test …
8. ### chemistry

using the ideal gas law or the combined gas law,why does the air pressure inside the tires on my motorcycle increases during the time I am riding it. Consider what factors are being kept constant and what are changing and how. What …
9. ### Chemistry help!

A sample of gas at a temperature of 37.0°C has a pressure of 725 torr and occupies a volume of 3.44 L. a. Use Boyle’s law to calculate the new pressure if the temperature is held constant and the volume is increased to 6.54 L. torr …
10. ### chemistry

The combined gas law can be rearranged to solve for T2. In which of the expressions given below has the combined gas law correctly been rearranged to solve for T2?

More Similar Questions