2. What is the percent by mass of a solution that contains 20 g of sodium hydrogen carbonate (NaHCO3) and 600 mL water? А. 3.23% B23.33% С. 3.45% D. 3.55% 3. What is the mole fraction of ascorbic acid (C6H8O6) in a solution containing 80.5 g of ascorbic acid and 210 g of water? В. О.025 A. 0.011 С. 0.037 D. 11.67 4. What mass of water is needed to prepare a 5.95 molal alcohol solution containing 817 g ethanol (C2H5OH)? A. 1.51 kg В. 2.98 kg С. 3.51 kg D. 4.0 kg 5. Which of the following glucose (C6H12O6) solutions has a concentration of 1M? A. 180 g glucose in 365 g of water B. 180 g glucose in 1000 g of water C. 180 g glucose in 1000 g solution D. 180 g glucose in 1000 ml solution

Q: Toluene (C6H5CH3) is a liquid compound similar to benzene (C6H6). Calculate the mole fraction of…

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Q: What is the mole fraction of CH3CH2OH in an aqueous solution that is 31.9% CH3CH2OH by mass? thanks…

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Q: The mole-fraction of 5.85 g : NaCl in 90 g of H20 is Grtore acr

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Q: 5. What is the mole fraction of 25% sucrose solution (C12H22011)? Find its concentration. .

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Q: Calculate the mole fraction of each solute and solvent ;a. 583 g of H2SO4 in 1.50 kg of water - the…

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Q: A solution is prepared by dissolving 17.75 g sulfuric acid, H2SO4, in enough water to make 100.0 mL…

A: Number of moles of sulfuric acid = given mass / molar mass =17.75 g / 98.079 g/mole = 0.18 mole

Q: A 55-g sample of a gaseous fuel mixture contains 0.43 mole fraction propane, C3H8; the remainder of…

A: Mole fraction is the ratio of mole of propane to the total mole of solution

Q: A solution is prepared by dissolving NaBr in water. What is the mole fraction of NaBr in a solution…

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Q: A solution is prepared by dissolving NaCl in water. What is the mole fraction of NaCl in a solution…

A: Moe fraction is the ratio of moles of a particular substance to the total moles present in a system.…

Q: 25. When CH3OH is dissolved in water, how many particles are in the solution? А. 1 В. 3 С. 5 D. 6

A: 25. CH3OH ( methanol ) is a molecular compound. The atoms in it are bonded through covalent bonds.…

Q: A solution is made by mixing 147. g of heptane (C7H16) and 23. g of acetyl bromide (CH3COBr)…

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Q: Calculate the mole fraction of the solvent and solution in a solution composed of 46.85 g of…

A: A numerical problem based on mole fraction, which is to be accomplished.

Q: A solution is prepared by dissolving LiCl in water. What is the mass percentage of water in a…

A: The mass percentage of water in a solution is calculated using the following formula: Mass% of…

Q: 3. What is the mole fraction of methanol, CH3OH, (molar mass = aqueous solution that is 40.0%…

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Q: A solution was made by dissolving 6.79 g glucose ( Ce H12 O6) in 31.1 g water ( H2O). What is the…

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Q: 6.) Which is the mole fraction of X in a 0.05560 m aqueous X solution? A. 0.999 B. 0.101 C. 0.00100…

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Q: A 2 L sulfuric acid solution containing 320 g of H2SO4 per liter of solution has a density of 1.329…

A: Mass of solute in 2L of solution= 320*2= 640g of H2SO4 Moles of solute= mass /molar mass…

Q: You have a solution which is 45.7% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

A: Mass percent of isopropyl alcohol is 45.7%. So, 45.7 g of isopropyl alcohol is present in 100 g of…

Q: 3. What is the mole fraction of an isopropyl alcohol(C2H7OH) alcohol made by 70% by mass? a.) What…

A: The 70% by mass of alcohol means 70 g of alcohol in 100 g of solution. The moles of isopropyl…

Q: A solution is made using 141.3 g of phenol (MM = 94.11 g/mol) and 70.0 g of acetone (MM = 58.08…

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Q: 4. Mole Fraction Calculate the mole fraction of sulfuric acid (H2SO4) in 8% (wt/wt) aqueousH2SO4…

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Q: 10.0 mL of ethanol (p = 0.789 g/mL, 46 g/mol) was added to 90.0 mL of water (p = 1 g/mL, 18 g/mol)…

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Q: What is the molality of a solution prepared by mixing C6H6 with CC14. If the solution density is 0.9…

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Q: 41.g of heptane C7H16 and 147.g of thiophene C4H4S Calculate the mole fraction of heptane in this…

A: Answer:- This question is answered by using the simple concept of calculation of mole fraction using…

Q: An aqueous solution is 6.00 % by mass ethanol, CH3CH2OH, and has a density of 0.988 g/mL. The mole…

A: Given :- %w/w of ethanol solution = 6.00 %  Density = 0.988 g/mL  To calculate :-  Mole fraction of…

Q: 2. Calculate the mole fraction of the solute in the following solutions: a. 100.0 grams C2H60 in…

A: a) 100.0 grams C2H6O in 100.0 grams H2O:

Q: A gas mixture for use in some lasers contains 4.65 %%by weight HClHCl, 2.35 %% H2H2, and 93 %% NeNe.…

A: Number of moles of components in the mixture can be calculated as follows: No. of  moles of HCl =…

Q: MOLE FRACTION AND DILUTION What is the mole fraction of solute and solvent in a solution prepared…

A: Mole fraction of any component is given by the following equation: Mole fraction=number of moles of…

Q: A 1.35 m solution of NaOCl in water is prepared. What is the mole fraction of the NaOCl? Multiple…

A: Molality: No. of moles of a solute in 1kg of solvent is called as molality.

Q: A solution is made by mixing 97. g of acetyl bromide (CH,COB1) and 146. g of heptane (C,H16).…

A: Given that : Mass of acetyl bromide (CH3COBr) = 97.0 g Mass of heptane (C7H16) = 146.0 g Mole…

Q: What is the mole fraction toluene in a solution made by dissolving 5.00 g of toluene (CZH8) in 39.0…

A:

Q: Example 9. A solution contains 25 per cent water, 25 per cent ethanol and 50 per cent acetic acid by…

A: Given: % by mass water=25%% by mass ethanol=25%% by mass acetic acid=50% To find: Mole fraction of…

Q: A solution is prepared by dissolving NaBr in water. What is the mole fraction of NaBr in a solution…

A: Mole fraction of a substance= Number of moles of that substanceTotal number of moles

Q: What is the mole fraction of water in a solution that contains 70.2 g of urea and 23.1 g of water?…

A: Given,  Mass of urea (solute) = 70.2 g  Mass of water (solvent) = 23.1 g  Molar mass of urea = 60.06…