Describe how the molar volume of an ideal gas is fixed at a given temperature and pressure, investigate Boyle's, Charles's and Gay-Lussac's relationships for a fixed mass of gas, and interpret graphs of P against V, V against T and P against T.
Tę umiejętność sprawdza 7 zadań wzorowanych na arkuszach IB z lat 2023–2026.
(i) The first step is the catalytic oxidation of ammonia gas to nitrogen monoxide. 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) Determine the volume, in dm3, of nitrogen monoxide produced from 20.0 g of ammonia, at STP, using section 2 of the data booklet.…
Sodium azide, NaN3 (Mr = 65.0), decomposes on heating to form sodium and nitrogen gas. 2 NaN3(s) → 2 Na(s) + 3 N2(g) What volume of nitrogen is produced from 26.0 g of sodium azide at STP? A. 6.05 dm3 B. 9.08 dm3…
(i) Write a balanced equation, with state symbols, for this reaction. (ii) Deduce which of the two reactants runs out first, that is, which one limits the reaction. Use sections 1, 4 and 7 of the data booklet. (iii) Calculate the volume, in dm3,…
What volume of hydrogen, in cm3, is produced at STP when 0.810 g of aluminium reacts with an excess of hydrochloric acid? 2 Al(s) + 6 HCl(aq) → 2 AlCl3(aq) + 3 H2(g) Molar volume of an ideal gas at STP = 22.7 dm3 mol−1 A. 341 B.…
Aluminium reacts with chlorine gas. 2 Al(s) + 3 Cl2(g) → 2 AlCl3(s) What mass of aluminium chloride, in g, forms when 2.70 g of aluminium reacts with 2.27 dm3 of chlorine at STP? Molar volume = 22.7 dm3 mol−1 A. 4.44 B. 8.89 C.…
Outline why a large number of the elements in the table have atomic volumes above 10 000 cm3 mol−1.
Outline why some of these elements have atomic volumes close to 11 350 cm3 mol−1 while others have values close to 22 700 cm3 mol−1.
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