NEET Sample Paper NEET Sample Test Paper-39

  • question_answer If Avogadro number \[{{N}_{A}},\]is changed from \[6.022\times {{10}^{23}}\,mo{{l}^{-1}}\]to \[6.022\,\times {{10}^{23}}\,mo{{l}^{-1}},\] this would change:

    A)  the ratio of chemical species to each other in a balanced equation

    B)  the ratio of elements to each other in a compound

    C)  the definition of mass in units of grams

    D)  the mass of one mole of grams

    Correct Answer: D

    Solution :

     \[\because \]mass of mol (\[6.022\times {{10}^{23\,}}\]atoms) of each = 12 g If Avogadro number \[({{N}_{A}})\]is changed, then mass of 1 mol (\[6.022\times {{10}^{20}}\]atom)of carbon \[=\frac{12\times 6.022\times {{10}^{20}}}{6.022\times {{10}^{23}}}=12\times {{10}^{-3}}g\] Therefore the mass of 1 mol of carbon is changed.

adversite



LIMITED OFFER HURRY UP! OFFER AVAILABLE ON ALL MATERIAL TILL TODAY ONLY!

You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos