Question

Which of the following pair elements represents a mole ratio of 1:1? 1. 20g of sodium and 20g of calcium. 2. 7g of nitrogen and 12g of sodium. 3. 10g of calcium and 6g of carbon. 4. 14g of nitrogen and 24g of magnesium.​

Answer 1

Answer:

(iv) 14 g of N and 24 g of Mg

Explanation:

for (iv) only :

No of moles for N = given mass/atomic mass

thus no of moles = 14/14 = 1 mole

No of moles for Mg = given mass/atomic mass

thus no. of moles = 24/24 = 1 mole

Ratio of both the moles = 1/1 = 1:1.

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