xactly 4.0g of sulfur is burnt in a fume extraction cupboard. The sulfur is ignited in an excess of oxygen: S(s) + O2(g) ➔ SO2 a. What volume of gas will form in dm3 at rtp? b. What volume of oxygen will be used up

No because it not possibly

Those are different gas lawshere is a brief description of themcharles's law states that volume and temperature are directly proportional to each other as long as pressure is held constant.  boyle's law asserts that pressure and volume are inversely proportional to each other at fixed temperature.gay-lussac's law introduces a direct proportionality between temperature and pressure as long as it is at a constant volume.    source: