You are provided with a vial of an hypothetical solid that is non-volatile and a non-electrolyte. You weigh out 51.2 g of the solid and dissolve it in 190.0 g of water. Through experimentation, you find that the freezing point of the solution is -1.73 ∘C. a) What is the molality of the solution of the hypothetical solute? b) How many moles of the hypothetical solute are in the solution? c) What is the molar mass of the solute?

Q: 6. A student makes a solution that is 37.5% (by mass) perchloric acid in water. Determine the…

A: The ratio of moles of solute to the mass of solvent in (kg) is known as molality.

Q: molality of the 0.75 mol of salt (NaCl) dissolved in 155 g of water?

A: Given,  Moles = 0.75 mol Mass of solvent = 155 g = 0.155 Kg Molality = mole/mass of solvent(Kg)

Q: An aqueous solution is made by dissolving 17.3 grams of chromium(II) acetate in 351 grams of water.…

A: Number of moles of chromium(III) acetate = 17.3 g / (229.13 g/mol) =0.075 mol.

Q: A solution is prepared by combining 5.03 grams of an unknown non-electrolyte with 323.0 grams of…

A:

Q: 1. Equal numbers of moles of two soluble substances; A & B, are dissolved into 1 L of water…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: A solution is made using 130.0 mL of acetonitrile (density 0.786 g/mL) and 250.0 mL of water…

A:

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

A:

Q: What is the molality of a solution prepared by dissolving 15.1 g of potassium nitrate in 250. g of…

A:

Q: A solution is made using 293.5 mL of methanol (density 0.792 g/mL) and 300.0 mL of water (density…

A: Given:Volume of methanol = 293.5 mL.Density of methanol = 0.792 g/mL.Volume of water = 300…

Q: A salt has a lattice energy of -844.4 kJ/mol and a heat of solution of -62.2 kJ/mol. What is the…

A: For the given salt, Hlattice = -844.4 kJ/mol Hsolution = -62.2 kJ/mol Hhydration = ?

Q: An aqueous KNO3 solution is made using 71.9 g of KNO3 diluted to a total solution volume of 1.95 L.…

A: From the weight of the compound taken we can calculate the mole present in 1000 ml ghat will be the…

Q: A solution is made using 185.3 mL of isopropanol (density 0.7860 g/mL) and 275.0 mL of water…

A: Given: The density of isopropanol is 0.7860 g/mL. The volume of isopropanol is 185.3 mL. The volume…

Q: In an experiment, a group of students dissolved 4.67 g of toluene in 67.8 g of cyclohexane. What was…

A:

Q: An aqueous solution is 36.0% by mass hydrochloric acid, HCl, and has a density of 1.18 g/mL. The…

A: 36% by mass HCl means 36 g of HCl present in 100g of solution  mass of solution = mass of solute +…

Q: A solution was prepared by dissolving 125.0 g of KCl in 295 g of water. Calculate the molality of…

A: Molality: The molality of the solution is defined by the mole of solute present in one kilogram of…

Q: A solution is prepared by combining 5.24 grams of an unknown non-electrolyte with 291.0 grams of…

A:

Q: An aqueous solution is made by dissolving 21.0 grams of manganese(II) sulfate in 483 grams of…

A: The objective of the question is to calculate the molality of manganese(II) sulfate in the solution.…

Q: ) If the density of a 1.75 L Uric Acid solution is 4.10 x 10-3 g/mL and the solution contains 7.00 g…

A: Given,

Q: A 40.7g of a nonelectrolyte is dissolved in 220g of water to make a solution.  The solution’s…

A: The given data contains, mass of nonelectrolyte = 40.7 g. mass of water = 220 g. Temperature =…

Q: 40. An aqueous solution is 0.657 M in HCl. What is the molality of the solution if the density is…

A: To find the molality of the solution, we need to determine the number of moles of solute (HCl) per…

Q: The solubility of NaCl in water at 0ᵒC is 35.7 g per 100 mL of water. A solution containing 406.8 g…

A: Solubility is defined as the ability of a solute to dissolve in a solvent to form a solution.  Given…

Q: A solution is made using 126.9 mL of ethanol (density 0.7892 g/mL) and 350.0 mL of water (density…

A: Given: The volume of ethanol = 126.9 mL The density of ethanol = 0.7892 g/mL The volume of water =…

Q: What is the molality of a solution

A: Molality = number of moles of solute/mass of solvent in kilogram  Number of moles = mass/molar mass

Q: If you dissolve 2.00 g of calcium nitrate in 750 g of water, what is the molality of calcium…

A: Given,Molar mass of calcium nitrate=164.088 g/molmass of calcium nitrate=2 gmass of…

Q: Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated…

A:

Q: Suppose that 98.0g of a nonelectrolye are dissolved in 1.0 kg of water. The freezing point of this…

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Q: An aqueous solution of acetone (MM = 58.08 g/mol) has a molality of 4.45 m and a density of 1.25…

A:

Q: What is the molality of 2.5 g NaCl dissolved in 20.0 kg of water?

A: The given values for the preparation of NaCl solution is: weight of NaCl=2.5 gamount of water…

Q: The fuel for a thermonuclear bomb (hydrogen bomb) is lithium deuteride, a salt composed of the ions…

A:

Q: A solution is prepared by dissolving 78.5 g of NaCl in 889 g water to make a total solution volume…

A: The mass pf NaCl = 78.5 g The mass of water = 889 g = 0.889 kgThe volume of solution = 925 mL =…

Q: An aqueous solution of calcium acetate has a concentration of 3.13×10-2 molal. The percent by mass…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: An aqueous solution containing 17.5 g of an unknown molecular (nonelectrolyte) compound in 100.0 g…

A: Given: Mass of compound = 17.5 g. Mass of water i.e. solvent = 100.0 g = 0.100 Kg…

Q: 6. Molality is another way to express the concentration of the solution. It is more precise than…

A: Given, The mass of ethanol is 119 g. The density of ethanol is 0.789 g/cm3

Q: An aqueous solution of ethanol (molar mass = 46.07 g/mol) has a molality of 12.15 m and a density of…

A: Answer:- This question is answered by using the simple cocept of calculation of molarity using the…

Q: How many grams of Na, CO, are present in 17.9 ml. of a solution that is 26.0% Na,CO, by mass? The…

A: Given, Volume of solution = 17.9 mL Density of solution = 1.13 g/mL Mass of solution = density of…

Q: The freezing point of an aqueous solution containing a non electrolyte solute is -2.79 degree…

A: On adding a non-electrolyte solute in a solution there is depression in the freezing point and…

Q: What mass of H2O (in grams) is needed to dissolve 6.03 g Li3PO4 to produce a solution having a…

A:

Q: A) Calculate the Molarity5.35 g Mn(NO3)2 * 2H2O in 175 mL of solutionB)What is the molality of a…

A: a) Molarity of a solution is defined as the number of moles of solute per liter of the solution. For…

Q: 1. Find the mass percent of CaCl2 (110.98 g/mol) in a solution whose molarity is 1.45 M and whose…

A: given that,Molarity = 1.45 M = 1.45 mol/ 1L density = 1.12 g/mLvolume of the solution = 1L = 1000mL…

Q: Ethyl propanoate is an organic molecule that smells like pineapple and has a molar mass of 102.132…

A: The molality of a solution is the number of moles of solute dissolved per kg of the solvent.

Q: What is the molality of a solution produced by dissolving 11.70g of LiCl (42.39 g/mol) in water to…

A: Given:mass of LiCl = 11.70 gmolar mass of LiCl = 42.39 g/molvolume of solution = 0.115 L = 115…

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.