Question

number of gram molecules in 12.5g of glucose​

Answer 1

Answer:

5.117⋅1021. Explanation: chemical formula of glucose: C6H12O6. relative atomic mass (Am) of: C:12. H:1. O:16. C6:72

Answer 2

The number of gram molecules in 12.5g of glucose will be 5.117⋅1021.  

Explanation:

• The chemical formula of glucose is C6H12O6, and their relative atomic mass is C:12. H:1. O:16. C6:72. Glucose has 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms. Therefore, its molecular mass will be 180.
• Thus, we obtain by multiplying the relative atomic mass with the number of respective atoms. Therefore, 1 mole of glucose will have 180 grams.  

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