question_answer 43)

  Which of the following figures does not represent 1 mole of dioxygen gas at STP? (a) 16 grams of gas                                                          (b) 22.7 litres of gas (c) \[6.022\times {{10}^{23}}\]dioxygen molecules                           (d) 11.2 litres of gas

Answer:

  (a, d) 1 mol \[{{O}_{2}}\] weighs 32 g and contains \[6.023\text{ }\times \text{ }{{10}^{23}}\]molecules.