Question

Question #94985

Answer 1

To solve this problem we would use the combined gas law.

The formula for the combined gas law is
`((P_i)(V_i))/T_i = ((P_f)(V_f))/T_f`

We begin by identifying the values for each of the variables and identifying the missing value.

`P_i` = 715 torr
`V_i` = 250. mL
`T_i` = 35 C + 273 = 308 K

`P_f` = 925 torr
`V_f` = ???
`T_f` = 85 C + 273 = 358 K

Remember to always convert Celsius to Kelvin for the gas laws.
`C + 273 = K`

`((715 trr)(250. mL))/(308 K) = ((925 trr)(x))/(358 K)`

`((358 K)(715 trr)(250. mL))/((308 K)(925 trr)) = (x L)`

`x L = 225 mL`

I hope this was helpful.
SMARTERTEACHER