Final answer:
To find the volume of the gas at STP, we can use the gas law formula PV/T = constant. At 1.80 atm and 30.0 °C, the gas occupies a volume of 65.5 mL. By converting the temperature to Kelvin and the pressure to atmospheres, we can calculate the volume at STP to be approximately 67.9 mL.
Step-by-step explanation:
Answer:
To solve this problem, we can use the gas law formula PV/T = constant. At 1.80 atm and 30.0 °C, the gas occupies a volume of 65.5 mL. To find the volume at STP, we need to convert the temperature to Kelvin and the pressure to atmospheres. The standard temperature is 0°C (273.15 K) and the standard pressure is 1 atm. Plugging in these values, we have:
65.5 mL * (1.80 atm * (273.15 K / 30.0 °C)) / (1 atm * 273.15 K) = 67.9 mL (rounded to one decimal place).
Therefore, the volume of the gas at STP is approximately 67.9 mL.