A solution is prepared by dissolving 5.02 g of KNO3 in 95 g of water. Calculate the following: (a) percent mass of the solute, (b) mole fraction of the solute and the solvent, and (c) concentration of the solution in ppm.

Q: A solution contains 10.0 g of carbon tetrachloride, CCl4, and 20.0 g of benzene, C6H6. Calculate the…

A: Given: Mass of carbon tetrachloride =10g Molar mass Carbon tetrachloride = 153.82 g/mol Moles of…

Q: Propylene glycol, C3H6(OH)2, is sometimes used in automobile antifreeze solutions. If an aqueous…

A: Given: Mole fraction of propylene glycol = 0.10  Assuming 1 mole of solution. The moles of C3H6(OH)2…

Q: A solution contains 0.35 mol of isopropanol (C3H7OH) dissolved in 0.85 mol of water. (a) What is the…

A: (a) Mole fraction of isopropanol = moles of isopropanolmoles of isopropanol+moles of water…

Q: Calculate the molality of each of the following solutions: (a) 8.66 g of benzene (C6H6) dissolved in…

A: (a)Number of moles of benzene is determined to calculate its molality.

Q: Calculate the molality of each of the following solutions: (a) 10.0 g of benzene (C6H6) dissolved in…

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Q: Benzene (C6H6; molar mass = 78.11 g/mol) and toluene (C7H8; molar mass = 92.13 g/mol ) form an ideal…

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Q: The density of acetonitrile (CH3CN) is 0.786 g/mL and the density of methanol (CH3OH) is 0.791 g/mL.…

A: Mass of acetonitrile is calculated from its density and given volume.

Q: At 30 °C, a solution is prepared by mixing 22.8 g Na2SO4 with 175.0 g water. The vapor pressure of…

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Q: Problem 12.10 bhere is one more aspect to the story. It involves yet another dimer-one having the…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: A solution is prepared by mixing 1.0 grams of benzene (CsHs) in 100 g of water to create a solution…

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Q: (a) What is the molality of a solution formed by dissolving 1.12 mol of KCl in 16.0 mol of water?…

A: Molality is unit of concentration and is defined as the number of moles of solute per mass of the…

Q: A solution contains 0.130 mol of isopropanol (C3H7OH) dissolved in 3.620 mol of water. (a) What is…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: (a) Differentiate between molarity and molality in a solution. What is the effect of temperature…

A: a) The molarity is the concentration term that can be expressed as the mathematical ratio between…

Q: 3. The density of acetonitrile, CH,CN, is 0.786 g/mL, and the density of methanol, CH,OH, is 0.791…

A: Given: Density of CH3CN = 0.786 g/mL. Density of CH3OH = 0.791 g/mL. Volume of CH3OH added = 20.0 mL…

Q: Calculate the molarity and mole fraction of acetone in 1.00-m solution of acetone (CH3COCH3) in…

A: Given- The concentration of the solution of acetone in ethanol = 1.00 m 1 mol of acetone in 1 kg of…

Q: Osmotic pressure can be very useful for estimating the molecular weights of macromolecules for whom…

A: For part (a): The mass of protein = 1.364 g The molar mass of the protein = 1.78 × 104 g/mol The…

Q: Concentrated phosphoric acid as sold for use in the laboratory is usually 90% H3PO4 by mass (the…

A: Molarity is defined as the number of moles of solute dissolved in per litre of the solution.  It is…

Q: A solution is prepared by dissolving 70.0 g calcium hydroxide, Ca (OH2), in 250.0 g of water.…

A: The mole fraction of any component in a solution or mixture is defined as the number of moles of…

Q: Ethanol, CH3 CH2OH, is known as grain alcohol and is the alcohol found in alcoholic beverages.…

A: Molar mass of ethanol = Atomic mass of C X 2 + Atomic mass of H X 6 + Atomic mass of O = 12 X 2 + 6…

Q: Calculate solution concentration. A solution consists of 46.1 g of potassium bromide, KBr, and 81.9…

A: mass of KBr = 46.1 gmass of water = 81.9 gmolar mass of KBr = 119.00 g/molmolar mass of water =…

Q: Solutions of hydrogen in palladium may be formed by exposing Pd metal to H2 gas. The concentration…

A: A solution is a homogeneous mixture of two or more components. Solution is always consists of solute…

Q: A 11.7MHCIO4 (aq) solution has a density of 1.671g/ml. Use this information to calculate m the…

A: Molarity of HClO4 = 11.7 MDensity of Solution = 1.671 g/mLAssume the volume of solution be 1 L =…

Q: At 25 degree C, the mole fraction of air  in water is about 1.388 x10^-5. (a)What is the molarity of…

A: Given: mole fraction of air = 1.388x10-5The given mole fraction of air in water is very low. Hence,…

Q: An ethanol water solution is prepared by dissolving 10.00 mL of ethanol, CH3CH2OH (density = 0.789…

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Q: 4. The density of acetonitrile (CH3CN) is 0.786 g/mL and the density of methanol (CH3OH) is 0.791…

A: Mole fraction of x = no.of moles of x/total moles  Molality is the ratio of moles of solute to the…

Q: Determine the concentration of a solution that contains 825mg of Na2HPO4 dissolved in 450.0mL of…

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Q: a) What is the molality of a solution made by dissolving 10 moles of hydrogen peroxide, H₂O₂, in 10…

A: molality is defined as number of gram moles of solute present in 1.0 kg of solvent.   m = n (mol)Wt.…

Q: The density of acetonitrile 1CH3CN2 is 0.786 g>mL and the density of methanol 1CH3OH2 is 0.791…

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Q: At 45 °C, a solution is prepared by mixing 48.0 g Na2SO4 with 240.0 g water. The vapor pressure of…

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Q: You have a solution which is 56.2% by mass isopropyl alcohol (molar mass = 60.11 g/ mol) in water.…

A: Molality of solution represents the moles of solute per kilograms of solvent. Molarity of solution…

Q: Calculate the molality of each of the following solutions: (a) 8.66 g of benzene 1C6H62 dissolved in…

A: Given data are as follows for a) 8.66 g of benzene 23.6 g of carbon tetrachloride  for b) 4.80 g of…