How many grams of oxygen are collected in a reaction where 235 mL of oxygen gas is collected over water at a temperature of 25 °C and a total pressure of 697 torr?
Volume of oxygen = 235 mL.
Temperature (T) = 25 °C .
Pressure (P) = 697 torr .
Simply use the ideal gas equation: PV = nRT
P = pressure = 717 torr
V = volume = 235 mL or 0.235 L
n = unknown
R = gas constant = 0.08206 L*atm/mol*K
T = temperature = 25 C + 273.15 = 298.15 K
Since the gas constant R is expressed in L*atm/mol K, the pressure should also be expressed in atm. Convert...