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(a) The volumes of gases A, B, C and D, are in the ratio, 1 : 2 : 2 : 4 under the same conditions of temperature and pressure.(i) Which sample of gas contains the maximum number of molecules?(ii) If the temperature and the pressure of gas A are kept constant then what will happen to the volume of A when the number of molecules is doubled?(iii) If this ratio of gas volumes refer to the reactants and products of a reaction, which gas law is being observed?(iv) If the volume of A is actually 5.6 dm3 at STP, calculate the number of molecules in the actual volume of D at STP.(Avogadro's number is 6 × 1023).(v) Using your answer from (iv), state the mass of D if the gas is dinitrogen oxide (N2O).(N = 14; O = 16)(b) Calculate the percentage of nitrogen in aluminium nitride. (Al = 27, N = 14) |
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Answer» (a) The volumes of gases A, B, C and D, are in the ratio, 1 : 2 : 2 : 4 under the same conditions of temperature and pressure. |
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