Quicklime contains 28.6% of oxygen by weight. Determine

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Quicklime contains 28.6% of oxygen by weight. Determine the weight of oxygen in 750 gm quicklime.

1. 214.5 gm
2. 224.5 gm
3. 234.5 gm
4. 235.5 gm

Correct Option: A

100 gm quicklime contains oxygen = 28.6 gm.
∴ 1 gm quicklime contains oxygen

=	28.6
	100

Hence, 750 gm quicklime contains oxygen

=	28.6	× 750 = 214.5 gm
	100

Hence, weight of oxygen in 750 gm quicklime is 214.5 gm