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Calculate the weight of copper sulphate formed when 128g of copper is added to conc.h2so4 .what is the volume of so2 librated at stp |
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Answer» Answer: 321.5 g of CuSO4 and 22.4 L of SO2 Explanation: FIRST of all, the reaction is : Cu + 2H2SO4(conc.) = CuSO4 + 2H2O + SO2 The gram atomic mass of Cu is 63.5 g. The gram atomic mass of CuSO4 is 159.5 Therefore, 63.5 g of Cu gives = 159.5 g of CuSO4 so, 128 g of Cu gives = (159.5/63.5) * 128 g of CuSO4 i.e. = 321.5 g of CuSO4 Now, 1 mole of any element/compound at STP occupies 22.4 L of that element/compound. 1 mole of Cu gives = 1 mole of SO2 so, 22.4 L of Cu gives = 22.4 L of SO2. Hope this HELPS. |
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