What volume will be occupied by a sample of hydrogen at 1.51 atm if the volume at 740mmHg is 223 mL

for Chemistry:

What volume will be occupied by a sample of hydrogen at 1.51 atm if the volume at 740 mmHg is 223 mL (constant temp)?

I was using the formula (P1)(V1)/(n1)(T1) = (P2)(V2)/(n2)(T2)

I concluded (perhaps incorrectly) that the n's and T's cancel out since there is no change at all.

I then calculated (again perhaps incorrectly) that the V2 was equal to 143.84 mL.

Can someone check my answer or tell me how to solve it? Thank you in advance!

P1V1=P2V2 Correct, you do not need n or T for this problem.

1 atm = 760mmHg

Convert:

P1= 0.9736atm
V1 = 0.223L
*volume in these problems should always be in Liters

Put it all into the equation...
(0.97)(0.223L)=(1.51atm)(xL)
.217=x1.51

x = .1437L = V2

Why does volume always have to be Litres ??
Whatever volume units are used, no conversion is necessary unless asked for.

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