when a certain amount of CuCl2 is added to water, the freezing point lowers by 8.5 degrees . What is the molality of the copper(ll) chloride? (Kf water = 1.86 degrees C/m)

Q: 6) Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter at 22.4 °C causes the…

A: Solution The reaction is said to be an exothermic reaction, when the heat of the solution is…

Q: The density of pure acetic acid is 1.05 g/mL. If a 1.80 molal solution of NaCl-acetic acid was…

A: Molality(m) of a solution is defined as the number of moles of solute present in the 1 kilogram of…

Q: Normal saline is a mixture of NaCl in sterile water. Its concentration is 0.900% (g/mL) and mimics…

A: Molarity and molality are concentration terms which tells about the amount of solute present in the…

Q: Calculate the mass/volume percent (m/v) for 39 g of sucrose in 355 mL of a carbonated drink a. What…

A: To calculation of of mass/volume percent is dividing the mass of solute by the volume of solution…

Q: What mass of NaNO3 should be dissolved in 45 mL of water so that the resulting solution freezes to…

A:

Q: What molality of N a Clis required to lower the freezing point of water to -19.7 degrees C? Use…

A:

Q: An aqueous solution is 12.0% by mass silver nitrate, AgNO3, and has a density of 1.11 g/mL. The…

A: We have to find molality of solution

Q: 4. а. How many grams of Cu(NO3)2 (s) are needed to make 0.500 L of 0.200 M solution? b. What is the…

A:

Q: What mass of fructose, C5H10O5 (molar mass is 150.2 g), in grams must be added to 115 g H2O to lower…

A: The question is based on the concept of solutions.   Molality is a method of expressing…

Q: Nitrogen gas (N) has a solubility in water of approximately 0.0179 g/L at 25.0°C and 0.99 atm. What…

A:

Q: The solubility of Ni3(PO4)2 in water at a particular temperature is 8.0 × 10-* M. What is Ksp for…

A:

Q: Nitrogen gas (N2) has a solubility in water of approximately 0.0164 g/L at 25.0°C and 1.00 atm. What…

A:

Q: 3. How many grams of sucrose must be added to 350 g of water to lower the vapor pressure by 1.4 mm…

A: Relative lowering of vapor pressure is given by: Relative lowering of vapour pressure = x2…

Q: How many grams of N a 2 C O 3 must be dissolved into155 g of water to create a solution with a…

A: Here we have to apply the molality formula

Q: Water softeners often replace calcium ions in hard water withsodium ions. Because sodium compounds…

A:

Q: The solubility of glucose is 357 g/100 g H2O at 70°C. A solution is prepared by mixing 450g of…

A: At T = 70℃  Solubility of Glucose is 357 g / 100 g of H2O Thus, 357 g of Glucose dissolved in 100 g…

Q: You have a solution which is 45.6% by mass isopropyl alcohol (MM 60.11 g/mol) in water. The density…

A: Given: Percent by mass of isopropyl alcohol = 45.6 %. And density of solution = 0.905 g/mL. Assuming…

Q: At 50°C, the solubility of KCL in water is 42.6 g in 100 g water. What is the molality of KCL in…

A: Here we are required to find the molality of KCl solution

Q: What is the molality of a solution prepared by dissolving 32.6 g of sucrose (C12H22O11) in 1.56 L of…

A: Given, mass of sucrose =32.6 gramvolume of water =1.56 Ldensity of water =1.00 gmLwe are asked to…

Q: the solubility of cacl2 in water is "-0.875g/ml." what would be the best method for preparing a…

A: The dissolution of a solid substance in a suitable solvent at a constant temperature provides a…

Q: Dextran, a polymeric carbohydrate, is used as a blood plasma substitute. An aqueous solution…

A: Problems on osmotic pressure. Correct option is C.

Q: The following information are given for aqueous solutions of solid Y: - If solid Y is dissolved in…

A: Given solubility of Y at 25oC = 30g Y/ 100 g H2O           solubility of Y at 15oC = 40g Y/ 100 g…

Q: C. What is the (a) molality, (b) freezing point, and (c) boiling point of a solution containing…

A: Molality is an important method to determine the concentration of a solution. It is generally…

Q: Magnesium chloride is often used to melt ice on sidewalks. Considering that the solubility of…

A:

Q: C. Molality What is the molality of a solution of 2.50 g Na,PO, dissolved in 230g water? 2. What…

A:

Q: What molality (m) will a solution have that was prepared by mixing 220 grams of NaOH in 1200 ml of…

A: Molality (m) of a solution is defined as the number of moles of a solute dissolved in per kilogram…

Q: What molality of N a Cl is required to lower the freezing point of water to -12.4 degrees C? Use…

A: Given: Freezing point of water with NaCl solution = -12.4 oC And Kf of water = 1.853 oC/m.

Q: An aqueous solution of isopropanol (MM = 60.10 g/mol) has a molality of 7.25 m and a density of 1.18…

A: (M) Molarity = no. of moles of solute Volume of Solution (in ml)x1000∴ no. of moles of solute =…

Q: The density of a 0.500 Molar solution of acetic acid is 1.0042 g/ml. What is i s molality ?

A: Here we have: molarity of solution = 0.500 M density of solution  = 1.0042 g/ml Also, molar mass of…

Q: The solubility limit of kl in water is 58g of kl in 100g of water at 25 degrees Celsius.  What Is…

A: Solubility limit of KI is 58g/100g water.  To solve this question determine solubility limit in 1 gm…

Q: 1. The density of toluene, C₂H², is 0.867 g/mL, and the density of thiophene, C₂H₂S is 1.065 g/mL. A…

A: Different concentrations terms can be calculated by knowing the amount of solute and solvent.

Q: What mass in grams of CH₃OH (MM = 32.04 g/mol) would need to be added to 390.1 g of water in order…

A: ∆Tf = iKfm

Q: What is the molality of a solution composed of 106 g of acetone ((CH3)2CO) dissolved in 225 g of…

A: Molality is defined as number of moles of solute containing 1kg or 1000g of solvent.

Q: Your pure water boils at 100.00 C. You add some sugar into it and now it boils at 101.20C. What is…

A: Given,  Boiling point of pure water, Tb° = 100.00 °C  Boiling point of solution, Tb = 101.20 °C  Kb…

Q: 68.4 g of sucrose is dissolved in 250 g of water. What is the molality or molal concentration of the…

A: Molality = number of moles of solute/Kg solvent = (mass of substance/molecular mass of substance)x…

Q: A water solution containing an unknown quantity of a nonelectrolyte solute has a freezing point of…

A: molal depression in freezing point    ∆Tf = Kf x m(To - Ts ) = Kf   x  m where  Ts = freezing…

Q: a. How many grams of Cu(NO3)2 (S) are needed to make 0.500L of 0.200 M solution? b. What is the…

A:

Q: Magnesium chloride is often used to melt ice on sidewalks. Considering that the solubility of…

A: The melting point is calculated as, ΔT = iKf m Kf = 1.86 oC/m i = Vant Hoff factor For MgCl2, i = 3

Q: A solution is prepared by dissolving 8.62g of KCL (MM = 74.55 g/mol) into 265g of water. The density…

A:

Q: (Q59) What is the molality of a solution that contains 73.7 grams of strontium fluoride that has…

A: This question is from chapter Solutions. There are many ways of expressing the concentration of…

Q: What is the molality of a solution labeled "8.6% glucose (C6H12O6) by weight?" (glucose MW: 180.156…

A:

Q: Lithium chloride has a lattice energy of 861 kj/mol, and a solvation energy of -898 kj/mol. When…

A: When the lithium chloride solid is dissolved in water, energy will be required to break the lattice…

Q: What molality of N a Cl is required to lower the freezing point of water to -10.0 degrees C? Use…

A: The freezing point depression is observed after the addition of solute particles into a solvent,…

Q: A solution was prepared using 0.5437 g of sodium chloride (58.44 g/mol) in 650.0 mL of ethanol…

A:

Q: Ethylene glycol (EG), CH₂(OH)CH₂(OH), is a common automobile antifreeze. It is water soluble and…

A:

Q: The molality of a sugar solution (C6H1206) is 2.94 m. How many total ions does C6H1206 break into…

A:

Q: You have a solution which is 43.9% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

A:

Q: What is the molality of a solution consisting of 9.265 mass % of C2H5OH dissolved in water

A: Since we know that molality is define as the number of mole of solute per kg of solvent Here mass%=…

Q: calculate the molality. (d) 0.372 g of histamine, C5H9N, in 125 g of chloroform, CHCl3

A: Note - Since the chemical formula given for histamine in the question is incorrect, we will consider…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.