1.20 dm3 of ammonia gas were dissolved in water to form 200 cm3 of aqueous alkali at room temperature and pressure.
(i) Use the Data Booklet to calculate how many moles of NH3(g) were dissolved.
Hint: The molar volume of a gas is the volume of one mole of the gas at a given temperature and pressure. At STP, one mole (6.02 × 10^23 particles) of any gas occupies a volume of 22.4 L Any gas occupies 22.4 L at standard temperature and pressure (0°C and 1 atm). 1dm^3 = 1L
Because it is RTP and not STP use a value of 24.0 dm3 at room temperature and pressure (taken as about 20°C and 1 atmosphere). So your answer is correct.
Because it is RTP and not STP use a value of 24.0 dm3 at room temperature and pressure (taken as about 20°C and 1 atmosphere). So your answer is correct.