ACSEE (Form 6) Gases — practice questions
4 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice ACSEE (Form 6) Gases in the app →To find the volume a swallowed drop of liquid oxygen occupies as gas at 37°C, the order of working is:A compound of nitrogen and hydrogen is 87.4% nitrogen by mass. Its empirical formula is:The same compound has density 0.977 g/L at 710 mmHg and 100°C, giving $M_r\approx32$. Its molecular formula isA gas collected over water at 1 atm has water vapour pressure 17.5 mmHg. The pressure of the dry gas is found