Question

A sample of oxygen gas has a volume of 150 mL with a pressure of 0.947 atm. What will the volume be if pressure is increased to 770 torr?
Select one:
a. 158 mL
b. 141 mL
c. 100 mL
d. 0.18 mL

Answer 1

First of all, you want your pressure units to be consistent. Either convert 0.947 atm to torr or vice versa.

Answer 2

0.947 atm=719.72 torr

now use boyle's law

v1p1=v2pw

(150ml)(719.72 torr)=(770 torr)(v2)

Answer 3

solve for v2

Answer 4

Thank you so much, @dtan5457 . I'm absolute rubbish with this kind of stuff.

Answer 5

yw. if you have any more questions, just create a new question and tag me. I'll get right to it :)

Answer 6

Thanks, bro!