A solution contains 6.45 × 10-2 g of a compound in 8.21 g of ethanol. The molality of the solution is 3.50 x 10-2 m. Calculate the molecular weight of the compound. Molecular weight amu

Q: 30. A concentrated solution of HCl(aq) has the m/m% of 34.0%.  Calculate the molality of  solution.…

A: This is the concept of concentration terms

Q: Question attached

A: Step 1: Calculate the freezing point depression of the solution. Step 2 : Calculate the molal…

Q: What is the molality of NaCl in an aqueous solution which is 4.20 molar? The density of the solution…

A: Molality of a solution can be defined as the number of moles of solute dissolved per kilogram of…

Q: What is the molarity of 0.645 m glucose (CeH12O6) aqueous solution (Solvent: H2O). The molar mass of…

A: Assuming the mass of solution as 1 kg the number of moles present in given molality of glucose is…

Q: Calculate the molality of saturated aqueous sodium chloride (58.443 g/mol). A saturated solution…

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Q: Which aqueous solution has the lowest freezing point? 0.50m glucose, 0.40m NaCl or 0.30m CaCl2?

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Q: A solid consists of a mixture of NaNO3 and Mg(NO3)2. When 6.50 g of the solid is dissolved in 50.0 g…

A: We will use this formula ∆Tf=kf×m

Q: 3 molal solution is more concentrated than 3 molar solution. True O False

A:

Q: Calculate the molality of 2.50 M NaCl solution (density of solution 51.08 g/mL)

A: Molarity of a solution is used to express the concentration of the solution. It can be calculated by…

Q: Which aqueous solution has the greatest osmotic pressure? O 0.60 M NaCl 00.80 M glucose 00.30 M…

A: Here we are required to aqueous solution having greatest osmotic  pressure.

Q: Which solution will have the greatest effect on freezing point, boiling point, and osmotic pressure?…

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Q: When a 33.8-g sample of an unknown compound is dissolved in 500. g of benzene, the freezing point of…

A: Given mass of sample (solute) = 33.8 g mass of benzene (solvent) = 500 g freezing point of solution…

Q: 5. Calculate the molal concentration of a solution that contains 18 g of sodium hydroxide in 100 ml…

A: Answer:- These questions are answered by using the simple concept of calculation of concentration in…

Q: Find the molality of a solution made by adding 8g of NaOCI to 5000g of water. (MW: Na=23 g/mol, 0-16…

A: 14.  Given ;- mass of NaOCl = 8 g  Mass of water = 5000 g  MW: Na = 23 g/mol, O = 16g/mol, Cl =…

Q: A solution is prepared by dissolving 14.2 g of benzene (C6H6) in 282 g of carbon tetrachloride…

A: Molality is a term used for measurement of concentration. It is the concentration of solute in…

Q: 4. Calculate the molality of each of the following solutions: a. 2.89 g of NaCi dissolved in 0.159 L…

A: a. 1mL of h2o = 2.89/159 g of NaCl                      = 0.018 g of NaCl Moles of NaCl = 0.018/58.5…

Q: 6. The freezing point of a solution of 1.048 g of an unknown nonelectrolyte dissolved in 36.21 g of…

A:

Q: A 0.396 molal glocuse has a density of 1.16 g/ml. What is the molarity of glucose in the solution?…

A: The mole of solute present in one kilogram of the solvent is known as molality. The mole of solute…

Q: Enter your answer in the provided box. Calculate the molality of a 5.53 M ethanol (C,H;OH) solution…

A: Molality = No. of moles of soluteVolume of solvent in 1kgGiven in the question,Molarity of ethanol =…

Q: 1.Calculate the molarity:   12.4 g KCl in 289.2 mL solution   2.   Calculate the molality:   2.89…

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Q: What is the freezing point of an antifreeze solution created by adding 651g of ethylene glycol,…

A: Given details,

Q: Calculate the molality of a solution formed by adding 7.10 g NH,Cl to 16.1 g of water. molality: m…

A: Given: Mass of NH4Cl = 7.10 g. And mass of water i.e. solvent = 16.1 g = 0.0161 Kg…

Q: A solution contains 6.75 x 10-2 g of a compound in 8.35 g of ethanol. The molality of the solution…

A: Molality (m) of a solution is defined as the number of moles of solute per kg of the solvent. Thus,…

Q: 3. To determine the molar mass of a certain protein, 1.00 x 10-3 g of it was dissolved in enough…

A: Given information: Mass of protein = 1.00×10-3 g Volume of solution = 1.00 mL Pressure = 1.12 torr…

Q: 240 220 200 NACIO, 180 4KNO, 160 140 KBr 120 100 NaCl 20 20 40 100 120 Temperature (C) At 90 C.…

A: The solubility curve given is,

Q: Calculate the molality of the following aqueous solutions

A: A)    2.90 Molar solution means  there are 2.90 moles of  NaCl salt in 1 Liter.  Molecular weight of…

Q: What is the molality of a 4.90M NANO3 solution. The density of the solution is 1.22 g/mL Molar mass…

A: Given : molarity of NaNO3 = 4.90 M And density of solution = 1.22 g/mL Assuming 1 L of solution i.e…

Q: A bottle of wine contains 12.0% ethanol by volume. The density of ethanol (C2 H5OH) is 0.789 g/cm.…

A:

Q: Calculate the molality of 2.50 M NaCl solution (density of 1.12 g/mL)

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

Q: Calculate the molality of a solution formed by adding 2.10 g NH4Cl  to 13.8g of water.

A:

Q: What is the freezing point of a solution consisting of 0.255 moles of methanol added to 150 g of…

A:

Q: The solubility of nitrogen gas at 25˚C and 1 atm is 6.8 x 10-4 mol/L.  If the partial pressure of…

A: Applying Henry’s equation,S = k*P Here,  P = 1 atm S = 6.8 X 10-4 mol L-1  The partial pressure of…

Q: Calculate the molality of each of the following aqueous solutions: (a) 2.50 M NaCl solution (density…

A: To solve this problem we have to calculate the molality of the given Solution .

Q: The solubility of a compound is 84 g per 100.0 g solvent at 25 °C. If 84 g of the compound is…

A:

Q: An aqueous solution is 26.1 % lithium chloride, LICI, by mass. The density of the solution is 1.127…

A: The molality, mole fraction and the molarity are to be determined for an aqueous solution containing…

Q: Calculate the molality of a solution that contains 51. 2 g of naphthalene, CH, in 500 mL of carbon…

A:

Q: Enter your answer in the provided box. Calculate the molality of the following aqueous solution:…

A:

Q: Calculate the molality of a solution that contains 81.2 g of naphthalene, C10H8 , in 500. mL of…

A: Since molality is defined as the moles of solute present in per Kg of solvent  Hence molality =…

Q: A student dissolves 4.3 g of urea ((NH₂)2CO) in 1 CO) in 150. mL of a solvent with a density of 0.82…

A: Molarity is the number of moles of solute present in 1 liter of solution.  Molality is the number of…

Q: Calculate the molality of a solution formed by adding 2.40 g NH,CI to 11.1 g of water. molality: m…

A: Molality is used for measuring concentration of a solution.The symbol used for denoting molality is…

Q: Calculate the molality of a 40.0% H3PO4 solution in water.     0.380 m     6.80 m     1.13 m…

A: Given: (w/w) % of H3PO4 solution in water = 40.0 % molar mass of H3PO4 = 97.994 g/mol Let mass of…

Q: Calculate the molalities of the following aqueous solution: (a) 1.22 M sugar (C12H22O11) solution…

A: Given : 1.22 M solution of C12H22O11 with density = 1.12 g/mL Assuming we have 1 L of solution i.e…

Q: Calculate the molality of a solution formed by adding 9.10 g NH,Cl to 16.0 g of water.

A: Given: Mass of NH4Cl = 9.10 g Mass of water = 16.0 g Standard data: The molar mass of NH4Cl =…

Q: A student dissolves 16.g of benzoic acid C7H6O2 in 125.mL of a solvent with a density of…

A:

Q: a. Freezing point of pure water, Tf = 0 °C Freezing point of solution, Tf = -0. 34 °C Freezing point…

A: The molar mass of sucrose from the above given data is calculated as follows:

Q: What is the freezing point of a solution containing 407 g ethylene glycol in 2,098 g water. Molar…

A: Freezing point depression = Kf x molality Molality = Number of moles of solute/Mass of solvent in Kg…

Q: What is the molality of a solution of 100.07g of CaCO3 in 1000 grams of water? 2.0 m 1.5 m 1.0 m O…

A:

Q: Consider following aqueous solutions: 2.75 m sucrose / 1.50 m NaC1 / 1.00 m LiPO4 / Pure Water /…

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Q: T-butanol has a freezing point of 25.82° c and a freezing point depression constant of 8.37°C/m.…

A:

Q: Enter your answer in the provided box. Calculate the molality of a 2.27 M ethanol (C,H÷OH) solution…

A: Number of moles of solute present in 1 kg of solvent is known as molality of the solution.