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As pressure is constant, it is not required for the calculation. Use Charles' Law. V1 x T2 = V2 x T1. V1 = 80mL; V2 = ?. T1 = 273K; T2 = 373K. 80mL x 373K = V2 x 273K. V2 = 29,840 / 273 = 109.3mL Final volume. (Check: by proportion. (373K / 273K) x 80mL = 109.3mL).
P1V1/T1 = P2V2/T2 You want to solve for V2, so isolate it on one side Divide both sides by P2 and multiply both sides by T2 P1V1T2/(T1P2) = P2V2T2/(T2P2) = V2 (This is basic algebra; chemistry uses basic algebra in many problems)
combined gas law? what do i do after i plug in all the variables? 80mL sample of flourine gas at 0 degree celcius has a pressure of 761 torr. what is its volume at 100 degree C and 761 torr? P1 = 761 torr V1 = 80 ml T1 = 0 C = 0 + 273.15 = 273 P2 = 761 torr T2 = 0 + 273.15 = 373.15 K V2 = ? 761 torr)(80mL) = (761 torr)(V2) (273 K) ......................... (373 K) do i cross multiply or what? i dont get it
combined gas law?
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