240 g of calcium and 240 g magnesium elements have a mole ratio of a:b. What is a:b ?

3:5

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3:2

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1:1

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1:2

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Solution

The correct option is A 3:5
Number of moles in 240g Ca metal $= \frac{240}{40} = 6$
Number of moles in 240g of Mg metal $= \frac{240}{24} = 10$
Ratio= $6 : 10$
Ratio= $3 : 5$

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240 g of calcium and 240 g magnesium elements have a mole ratio of a:b. What is a:b ?

The correct option is A 3:5Number of moles in 240g Ca metal =24040=6Number of moles in 240g of Mg metal =24024=10Ratio=6:10Ratio=3:5

The correct option is A 3:5
Number of moles in 240g Ca metal $= \frac{240}{40} = 6$
Number of moles in 240g of Mg metal $= \frac{240}{24} = 10$
Ratio= $6 : 10$
Ratio= $3 : 5$