The mole fraction of magnesium bromide, MgBr2, in an aqueous solution is 4.87×10-2. The percent by mass of magnesium bromide in the solution is Answer: ___%

Q: Suppose you add 2.2 g of table salt (NaCI) and 3.4 g of potassium chloride (KCI), a table salt…

A: The molar mass of NaCl is  58.44g/mol The molar mass of KCl is 74.55g/mol The moalr mass of water =…

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

A:

Q: What is the vapor pressure above a solution prepared by dissolving 0.206 mol of a nonvolatile solute…

A: Non-volatile=0.206mol Weight of hexane=275g T=49.6°C  P°hexane=400torr

Q: A solution is made by mixing equal masses of methanol, CH,O, and ethanol, C,H,O. Determine the mole…

A:

Q: The mole fraction of ammonium phosphate, (NH4)3PO4, in an aqueous solution is 2.86×10-2 The percent…

A:

Q: In a 71.0-g aqueous solution of methanol, CH_0, the mole fraction of methanol is 0.220. What is the…

A: Since 71 g aqueous menas solution of methanol means mass of methanol is 71 g. First of all we will…

Q: When 148.g of urea CH4N2O are dissolved in 1100.g of a certain mystery liquid X, the freezing point…

A: When a non-volatile solute is added to a pure solvent, the freezing point of the resulting solution…

Q: A solution of H2SO4 containing 50.0% H2SO4 by mass has a density of 1.40 g/mL. Express its…

A:

Q: The molarity of saturated solution of Ammonia at 90 C is O a. 5.000 O b. 0.588 O c. 6.100 O d. 5.880

A: Molality = number of moles of solute ÷ volume of solution in litre

Q: An aqueous solution contains 43.4% glucose (C,H12O6) by mass. Part A Calculate mole fraction of…

A: Number of moles of a chemical compound is used to measure the amount of compound in the given…

Q: Below are animal cells placed in beakers of various cencentrations. Draw an arrow to show which way…

A: We are given 9 solutions with different concentrations of the cell as well as the solution.

Q: 3) A sample of exhaust gas from a reactor is composed of 0.0082 %wt SO3. Find the concentration in…

A: Hello, since multiple questions have been posted, the first question shall only be solved in this…

Q: A solution of H2SO4 containing 50.0% H2SO4 by mass has a density of 1.40 g/mL. Express its…

A: A solution of 50% of sulphuric acid means 50 g of sulphuric acid in 100 g of solution. Mass of…

Q: When 148.g of urea CH4N2O are dissolved in 1100.g of a certain mystery liquid X, the freezing point…

A:

Q: A solution was made by mixing sodium chloride ( NaCl) and water ( H2O). Given that the mole fraction…

A: Given a solution, mixture of sodium chloride and water.mole fraction of sodium chloride =0.0541 and…

Q: The electrolyte in automobile lead batteries is a 3.06 M sulfuric acid (H 2SO 4) aqueous solution.…

A: Given , Strength = 3.06 M density = 1.165 g/mL   We know,        Mass = density x volume…

Q: molarity of the solution. (MW of SO2 = 64g/mol)

A:

Q: 3. Glucose is a sugar found abundantly in nature – for example, in ripe grapes. What is the percent,…

A: Solutions possessing little solute's mass have less concentration in ppm as well as in mass percent.…

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: An aqueous solution is 22.0 % by mass silver nitrate, AGNO3, and has a density of 1.22 g/mL. The…

A: The relative quantities of substances present in a mixture is determined using mole fraction, the…

Q: A solution is made by mixing equal masses of methanol, CH,O, and ethanol, C, H,0. Determine the mole…

A:

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

A:

Q: A solution is made by mixing equal masses of methanol, CHO, and ethanol, C,HO Determine the mole…

A: Mole fraction of a substance can be calculated by

Q: In a 55.0-g55.0-g aqueous solution of methanol, CH4O,CH4O, the mole fraction of methanol is…

A:

Q: Express the 1% Sodium Lauryl Sulfate (NaC12H25SO4: p=1.01 g/ml) solution in the following…

A: To calculate %mg, mole %, molarity, molaity and normality of sodium lauryl sulfate at first you have…

Q: A chemist combined chloroform (CHCl3) and acetone (C3H6O) to create a solution where the mole…

A: Given: The mole fraction of chloroform (Xchloroform) is 0.139 The density of chloroform is 1.48 g/mL…

Q: The mole fraction of ammonium fluoride, NH4F, in an aqueous solution is 8.08×10-2 . The percent by…

A:

Q: A solution is made using 26.1 g of toluene (MM = 92.13 g/mol) and 80.0 g of benzene (MM = 78.11…

A: Mole fraction of toluene = number of moles of toluene/total moles  Number of moles= mass/molar mass…

Q: What mass of celsium chloride must be added to 0.500L of water to produce a 0.40m solution? What are…

A: molality is number of moles of substance present in 1 Kg of solution molality = (weight (g)/molar…

Q: When 47.9 g of glycine (C,H;NO,) are dissolved in 750. g of a certain mystery liquid X, the freezing…

A: The colligative property is depression in freezing point, and the formula for depression in freezing…

Q: A solution is made by mixing equal masses of methanol, CH,O, and ethanol, C, H,O. Determine the mole…

A:

Q: find the attached problem

A: Given: Concentration of the solute=1.0×10-4 M

Q: How to determine mole fraction? this is relating to finding the concentrationof sucrose in soda.…

A: Mole fraction is defined as the no. of mol of a particular component present in the total mol of…

Q: A solution is made using 137.9 g of dimethyl ether (MM = 46.07 g/mol) and 90.0 g of methanol (MM =…

A:

Q: 3) CH3OH solution in water cân be CH3OH? 4) What is the mole fraction of CH3OH in a solution of 10.0…

A: We have to calculate the  mole fraction  of CH3OH in a solution of mixture of  20 g H2O & 10 g…

Q: A student is asked to make up 100.0 g of a 13 % (w/w) sucrose solution. The students weighted out 13…

A:

Q: Q2. The density of 60.0% (by mass) of an aqueous soludon of propanol, C3H,OH(aq), is 0.8824 g/mL at…

A:

Q: What is the mole fraction of NazSO4 (Molar mass = 142 g/mol) in an aqueous solution which is 11.5%…

A: Mole fraction is the ratio of moles of a particular element to the total moles present. mole…

Q: 1 18. A solution that is 33.6 % by mass of phenol (C&HSOH) in water is prepared. What is the mole…

A: Answer 19 :- 1.35 m is 1.35 mole of solute in 1 kg of water. (1000 g H2O) / (18.01532 g H2O/mol) =…

Q: A solution is made by mixing equal masses of methanol, CH, O, and ethanol, C, H,O. Determine the…

A: Let both are taken 1 gm  Molecular weight of CH4O = 12+4+16 = 32 gm/mol and C2H6O = 24+6+16 = 46…

Q: A solution is made using 174.5 g of phenol (MM = 94.11 g/mol) and 70.0 g of acetone (MM = 58.08…

A: We know that,. mole fraction of phenol = no. of mole of phenol/(total moles of the solution) thus,

Q: A solution is made using 111.5 g dimethyl ether (molar mass = 46.07 g/mol) and 90.0 g of methanol…

A: Mole fraction describes the number of molecules (or moles) of one component divided by total the…

Q: A solution is made by mixing equal masses of methanol, CH,0, and ethanol, C,H,0. Determine the mole…

A: Mole fraction is defined as moles of that component divided by the total moles of each component in…

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: When 142. g of alanine (C3H,NO2) are dissolved in 1500. g of a certain mystery liquid X, the…

A: Calculate the number of moles of alanine. The molar mass of alanine is 89.09 g/mol.

Q: 15. A solution that is 33.6 % by mass of phenol (CH OH) in water is prepared. What is the mole…

A: Given, Mass by percentage of phenol 33.6%

Q: A chemist combined chloroform (CHCI,) and acetone (C,H,0) to create a solution where the mole…

A:

Q: Calculate the mole fraction of the solute in the following solutions:   100.0 grams C2H6O in 100.0…

A: Mole fraction of solute is equal to the number of moles of solute divided by total number of moles…

Q: The osmotic pressure of 5.0-L aqueous solution of sodium hydroxide (NaOH, μNaBr = 39.997 g/mol ) is…

A: Volume = 5.0 L  Osmotic pressure = 2.5 atm  Molar mass of NaOH = 39.997 g/mol  T = 25°C = 298 K…

Q: The freezing point of a 1 liter aqueous solution containing 10g of an unknown solute is -0.1 °C.…

A: We know that  ∆Tf = kf ×m×i