• # 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 equationB)  the ratio of elements to each other in a compoundC)  the definition of mass in units of gramsD)  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.

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