Question

How many grams of magnesium will have the same number of atoms as 6 grams of carbon ? (Mg = 24 u ; C = 12 u)

Answer 1

Answer:

12 grams of magnesium is the answer to this question

Answer 2

The number of grams of magnesium present is 12 grams of magnesium.

Explanation:

       Carbon mass = 6 grams

       Carbon’s molar mass = 12 grams

• Number of carbon moles =  $\frac{\text { Element's molar mass }}{\text { Element's given mass }}$ $=\frac{6 g}{12 g}=0.5 \text { moles }.$
• All substances with equal number of moles will have equal number of molecules.
• Thus, carbon with 0.5 moles and magnesium with 0.5 moles have same number of molecules.
• So, magnesium with 0.5 mole mass is  $0.5 \times 24 \text { grams }=12 \text { grams.}$