11th Class Chemistry Some Basic Concepts of Chemistry

  • question_answer 80)     Match the following :
    (i) \[88\,g\,of\,C{{O}_{2}}\] (a) \[0.25\,mol\]
    (ii) \[6.022\times {{10}^{23}}\] Molecules of \[{{H}_{2}}O\]   (b) \[2\,mol\]
    (iii) 5.6 litres of \[{{O}_{2}}\] at STP (c) 1 mol
    (iv) \[96\,g\]of \[{{O}_{2}}\] (d) \[6.022\times {{10}^{23}}\]molecules
    (v) \[1\,mol\]of any gas (e) \[3\,mol\]
       

    Answer:

      (i)  ? (b) 88 g \[C{{O}_{2}}\] contains 2 mol (ii) ? (c) \[6.023\times {{10}^{23}}\] molecules of \[{{H}_{2}}O\] = 1 mol (iii) ? (a) Number of moles of \[{{O}_{2}}\frac{5.6}{22.4}=0.25mol\] (iv) ? (e) Number of moles in \[96\,g\,{{O}_{2}}=\frac{96}{32}=3\] (v) ? (d) 1 mol of any gas contains \[6.023\times {{10}^{23}}\]molecules


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