Q. A gas mixture input is given to a membrane with 40% O₂ and 60% N₂, the waste contains 80% of the input and the product contains 25% O₂ and 75% N₂, what is the percentage of O₂ in the waste?

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Q. A gas mixture input is given to a membrane with 20% O₂ and 80% N₂, the waste contains 60% of the input and the product contains 30% O₂ and 70% N₂, what are the number of moles of O₂ in the waste?

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Q. 100 Kg mol of a gas mixture input is given to a membrane with 30% O₂ and 70% N₂, the waste contains 60% of the input and the product contains 10% O₂ and 90% N₂, what are the number of moles of O₂ in the waste?

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Q. A liquid solid mixture with 10% solid and 90% liquid is input to a dryer, some of the liquid evaporated and the product contains 60% solid and 40% liquid, what is the ratio of amount of water evaporated and amount of input?

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Q. A liquid solid mixture with 20% solid and 80% liquid is input to a dryer, if the amount of evaporated water is 60% of the amount of input, what is the percentage of solid in the product?

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Q. A 100 Kg liquid solid mixture with 10% solid and 90% liquid is input to a dryer, if the amount of evaporated water is 60% of the amount of input, what is the amount of liquid in the product?

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Q. 50 Kg of a solid liquid mixture containing 10% solid and 90% water is left open in atmosphere, after some time the water is 80%, what is the weight of the mixture now?

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Q. 50 Kg of a solid liquid mixture containing 20% solid and 80% water is left open in atmosphere, after some time the water is 60%, how much water is evaporated?

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Q. A gas mixture of 40% He and 60% Ne is passed through a diffusion tube and the product has 10% He and 90% Ne, what is the percentage of He recovered?

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Q. 100 Kg of a gas mixture of 40% He and 60% Ne is passed through a diffusion tube and the product has 20% He and 80% Ne, what is the amount of He recovered?

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Q. A gas mixture of 40% He and 60% Ne is passed through a diffusion tube, if the amount of He is recovered is 20% of the input, what is the percentage of He in the product?

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Q. 400 g of CaSO₄ is dissolved with 500 g of H₂O, if 226 g of CaSO₄.5H₂O crystallizes out, then what is the percentage of CaSO₄ in the remaining solution?

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Q. How much nitrogen must be added to a 20% nitrogen solution to obtain 100 Kg of 40% nitrogen solution?

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Q. A reactor is supplied with 6 moles of CO and 3 moles of O₂ and produced 4 moles of CO₂, what is the extent of reaction?

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Q. A reactor is supplied with 6 moles of N₂ and 9 moles of H₂, if 3 moles of NH₃ is produced, how many moles of H₂ are left at the end?

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Q. A reactor is supplied with 10 moles of CH₄ and 10 moles of O₂, if the extent of reaction is 3, what are the moles of CO₂ produced?

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Q. A reactor is supplied with 10 moles of O₂ and 10 moles of H₂, if the extent of reaction is 5, how many moles of water is produced?

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Q. A reactor is supplied with 5 moles of KNO₃ and some H₂SO₄, if the extent of reaction is 2, how many moles of H₂SO₄ were supplied?

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Q. A reactor is supplied with a 100 mole feed of composition 46% C₃H₇O₄, 44% O₂ and 10% N₂, if 50% of the limiting reagent is converted into product, what is the extent of reaction?

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Q. A reactor is supplied with a feed of composition 46% C₃H₇O₄, 44% O₂ and 10% N₂, if 50% of the limiting reagent is converted into product, what is the percentage of O₂ in the product?

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