Calculate the quantity of lime required to soften 60000 litres o
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    Some Basic Concepts of Chemistry

    Multiple Choice QuestionsShort Answer Type

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    2 KClO subscript 3 left parenthesis straight s right parenthesis space rightwards arrow space space space 2 KCl left parenthesis straight s right parenthesis space plus 3 straight O subscript 2 left parenthesis straight g right parenthesis

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    Multiple Choice QuestionsLong Answer Type

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    195.

    Calculate the quantity of lime required to soften 60000 litres of well water containing 16.2 g of calcium carbonate per hundred litre.

    Balanced equation is
    Ca(HCO3)2  + Ca(OH)2    2CaCO3 +2H2O
    (40+2+24+96)     (40+32+2)
      = 162 g                     = 74 g
     16.2 g                            ?

    (i) To calculate the weight of calcium bicarbonate present.
    Weight of calcium bicarbonate present in 100 litres of well water = 16.2 g, Now 100 L well water contains
                              = 16.2 g Ca(HCO3)2
     60000 L well water contains
                                   
    (ii)  To calculate the quantity of lime required. Stoichiometry indicates that 162 g Ca(HCO3)2 requires 74 g Ca(OH)2
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    Multiple Choice QuestionsShort Answer Type

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    Multiple Choice QuestionsLong Answer Type

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