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注意: 1.试题数字较多,但答案所需的字数不多,希望考生沉着冷静。 2.答题所需的原子量: H:1 O:16 C:12 Na:23 S:32 Fe:56 Cu:64 一、(本题共13分) (1)0.3摩尔的氧气和0.2摩尔的臭氧(O_3),它们的质量__等,它们所含的分子数__等,原子数__等,它们的体积比(同温、同压)是____。 (2)中和10毫升0.1N氨水,需用0.05N盐酸____毫升;中和后溶液显_性。 (3)在一密闭容器内,盛有碘化氢气体,在400℃时,建立下列平衡:
Note: 1. There are more numbers of questions, but the number of words required for the answer is not much. I hope the candidates will be calm and calm. 2. The atomic weight required for the answer: H: 1 O: 16 C: 12 Na: 23 S: 32 Fe: 56 Cu: 64 I. (13 points for this question) (1) 0.3 mole of oxygen and 0.2 mole of ozone ( O_3), their mass __, etc. They contain the number of molecules __, etc., atomic number __, etc. Their volume ratio (at the same temperature and pressure) is ____. (2) Neutralize 10 ml of 0.1 N aqueous ammonia, using 0.05 N hydrochloric acid ____ ml; (3) In a closed container containing hydrogen iodide gas, establish the following balance at 400 °C: