Q. 20 Kg/s of a fluid with density 5 Kg/m³ is passed into a tank of capacity 60 m³, how much time will it take to fill the tank?

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Q. 16 grams of oxygen is passed in the process in 5 minutes, what is the molar flow rate?

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Q. 24 grams of CH₄ is passed in the process in 3 minutes, what is the molar flow rate?

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Q. What is the mole fraction of sodium with moles n in a solution with moles of solvent N?

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Q. What is the unit of mole fraction?

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Q. If the mole fraction of 4.5 moles of solute is 0.5, what is the number of moles of solvent?

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Q. What is the mass fraction of 4 moles of Sodium in 8 moles of Hydrogen chloride?

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Q. If the mole fraction of sodium is 0.25 in 9 moles of liquid carbon dioxide, what is the mass fraction of sodium?

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Q. A solution has 25% w/w solution of Sodium Chloride in 10 grams of water what is the mole fraction of Sodium Chloride?

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Q. If the mole fraction of SO₂ in H₂SO₄ is 0.2, what is the ratio of mass of sulfur and oxygen in the solution?

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Q. A mixture of gases SO₂, O₂ and 4 g of N₂ and total mass of mixture is 10 g, what is the sum of mole fraction of SO₂ and O₂?

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Q. A neutral gas that is made of nitrogen and hydrogen only contains 7 g of nitrogen is in a mixture of with total mass 17 g, what is the mass fraction of the gas?

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Q. A mixture contains 23 g of ethanol and 36 g of water, some acetic acid is added to the mixture and its mole fraction becomes 0.5, how much acetic acid was added?

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Q. A mixture contains 9 gram each of H₂O and NaCl, what is the mole fraction of NaCl?

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Q. A mixture contains 10 grams each of CH₄, H₂O, and SO₂, what is the mole fraction of CH₄?

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Q. A mixture contains 80% of HCl and 20% H₂O by weight, what is the mole fraction of HCl?

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Q. A mixture contains 80% of NaOH and 20% H₂O by weight, what is the mole fraction of NaOH?

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Q. A compound contains 40% of Sulphur and 60% of Oxygen, what is the empirical formula of the compound?

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Q. What is the molecular weight of a mixture that contains 25% CO₂, 40% O₂ and 35% N₂?

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Q. What is the weight of 10 moles of a mixture with composition 15% O₂, 25% SO₂, 30% COCl₂ , 25% SO₃ and 5% N₂?

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