To calculate the mass of oxygen, we can use the ideal gas law equation. Remember, the ideal gas law is PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is temperature in Kelvin.
First, let's convert the temperature from Celsius to Kelvin. Just add 273 to the Celsius temperature. So, 26°C + 273 = 299 K.
Now, we can rearrange the ideal gas law equation to solve for n, the number of moles. n = PV / RT.
Plug in the values: P = 4.6 ATM, V = 75.0 mL (which we'll convert to liters by dividing by 1000), R = 0.0821 L·atm/(mol·K), and T = 299 K.
Calculate n using the equation, and then use the molar mass of oxygen (32 g/mol) to find the mass.
