Question

All of the following have the same number of particles except (a) 40g Ca (b) 32 g Oxygen (c) 12 g carbon (d) 14g nitrogen gas​

Answer 1

Answer:

(b) 32 g Oxygen

Explanation:

(b) 32 g Oxygen

Answer 2

Answer:

32 g

Thus, the mass of carbon dioxide which contains the same number of molecules as are contained in 40 g of oxygen is 55 g. Hence, the option (B) is the correct answer. Note: You can obtain the number of moles of a substance by dividing its mass with its molecular mass.

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