2. Sodium nitrate has a lattice energy of -2.48 x 102 kJ/mol, and a heat of hydration of -234 kJ/mol. Determine how much heat is evolved or absorbed when 16.5 g of sodium nitrate completely dissolves in water?

Q: A mass of 30 g KCl is dissolved in 200 ml of solution. What is the concentration of this solution as…

A: Given,Mass of KCl (solute) = 30 gVolume of solution = 200 mLThe concentration of this solution…

Q: How would you prepare 260. g of an aqueous solution containing 9.00% by mass sodium sulfate, Na,SO,?…

A: In any mixture, any element's concentration available in known compound is depicted by mass percent.…

Q: The ability of substances to form solutions depends on two factors. What are they?

A: Solution formed when a solutes is dissolved in solvent.

Q: possessed by it? True or False? 15). 3 g of Sodium metal and a large amount of ammonia form a…

A: Solute: the component of a solution which is present in lesser amount.Solvent: the component of a…

Q: At what temperature will 60 grams of KNO3 saturate the solution ?

A: Saturated solution is said to be when the maximum amount of a solute is dissolved in a solution…

Q: What can be the guidelines for predicting the solubility and polarity? Explain your answer

A: There are some rules to determine the polarity :  If the structure of the molecule iss…

Q: If 92.8 grams of sodium nitrite are dissolved in 2.3 L of water, the resulting solution has a…

A: Molarity of resulting solution is= 0.585 M Detailed solution has been attached.

Q: Determine the amount of sucrose in each solution.(a) 48 g of a solution containing 3.7% sucrose by…

A: Mass percentage is given by the formula:Mass % = (Mass of compound/Total mass of solution) x 100 %…

Q: The density of a solution that is 30.0% HClO4 is 1.138 g/ml. Calclulate the molarity of the HClO4…

A:

Q: Mass of ethanol (solute) = 150. g Mass of solution = 978 g What is the mass of the solvent? [?] g…

A:

Q: 2. An aqueous solution becomes cold when a solid is dissolved in the water. What does the decrease…

A: Answer - The correct option is (a) the process is endothermic Explanation - According to the…

Q: In 33 g of a 4.6% by mass solution of CaSO4: (a) how many grams of solute are present? (b) how…

A: Given, mass percent of a solution=4.6 %mass of solution =33 gwe are asked to calculate, mass of…

Q: Calculate the percent by mass of 158.65 g NaCl dissolved in 880 grams of water

A: Given that, 158.65 g NaCl dissolved in 880 grams of water We have to calculate the mass percent of…

Q: How much water ( in mL) must be added to a 4.01 M sulfuric acid solution to obtain 193.1 mL of 2.00…

A:

Q: An aqueous solution is 3.50% by mass potassium bromide, KBr, and has a density of 1.02 g/mL.The…

A: The molarity of potassium bromide in the solution is calculated in step two.

Q: Choose the most suitable definition for "enthalpy of solution". Select one: O a. The quantity of…

A: The enthalpy of solution, enthalpy of dissolution, or heat of solution is the enthalpy change…

Q: An aqueous solution of acetone is made by transfering 7.74 mL of liquid acetone to a 200. mL…

A:

Q: A solution is prepared by dissolving 52.7 g cesium chloride in 60.0 g water. The volume of the…

A: Answer-1 Molar Mass of CsCl is 168.36g/mol. Given mass of CsCl is 52.7g Since, number of moles are…

Q: Explain why some compounds don’t gain or lose heat when they dissolve (in water). How are they…

A: In this question we have differentiate the compound which doesn't lose or gain energy when dissolve…

Q: A solution contains 78.2 g NaCl dissolved in sufficient water to give a total volume of 0.525 L. The…

A: Given: Mass of NaCl=78.2 g The molar mass of NaCl = 58.44 g/mol Moles= Mass /Molar mass…

Q: The solution becomes hot after a solid was dissolved in water. The shift in temperature implies…

A: A solution becomes hot after a solid was dissolved in water. It means sum of  Gibb's energy of…

Q: mass percent

A:

Q: If 0.98 g of an unknown was dissolved in 10.30 g of solvent and the resulting solution has a…

A: Molality is moles of the solute that is present in 1000g or one kilogram(Kg) of solvent. Its SI unit…

Q: If 67.1 g of CaCl2 is added to 275 g of water, calculate the mass percent of CaCl2 in the solution

A: Given, mass of CaCl2 = 67.1 g Mass of water = 275 g  Mass % is calculated as a mass of a component…

Q: How many grams of solute are present in: a.225 grams of 12.5% MgCl2 solution? b.736 milligrams of…

A:

Q: If you take 1 teaspoon of salt and dissolve in 1 cup of water, what would look like? Sketch in…

A: Table salt (NaCl) dissolved in water. NaCl is an electrolyte Does not conduct electricity in solid…

Q: 31. Common commercial acids and bases are aqueous solutions with the following properties: Mass…

A: We know the following Formulae,  Density = mass/ volume Mole = mass / molar mass Molarity = moles of…

Q: A solution contains 1.5 g sodium chloride in 100.0 g water. What is the percentage by mass of NaCl…

A: Mass of solute (NaCl) = 1.5 g Mass of solvent (water) =100g (100 mL) Mass of solution=1.5+100=101.5g

Q: Explain when are solid solutions formed? What are the conditions that need to be satisfied to form a…

A: Solid solutions formed when, the substances may be soluble over a partial or even complete range of…

Q: Why is the curve for the freezing of a solution different in slope from the freezing of the solvent?

A: The solvent is in pure form. But in solution, there is solute along with solvent molecules

Q: An aqueous solution is 16.0% by mass potassium bromide, KBr, and has a density of 1.12 g/mL. The…

A: Molarity  can be calculated as follows

Q: Choose the most suitable definition for "enthalpy of solution". Select one: O a. The quantity of…

A: Enthalpy of solution also known as heat of solution.

Q: What mass of a 4.00% NaOH solution by mass contains 25.0 g of NaOH

A:

Q: Why do molecular solids dissolve in water?

A: Many solids dissolve in water readily.

Q: A solution was prepared by dissolving 35.0 g of KCl in 225 g of water.

A: mass percent is defined as the mass of solute divided by the mass of solution multiplied by 100%…

Q: The density of a solution that is 20.0% HClO4 is 1.138 g/ml. Calclulate the molarity of the HClO4…

A: Molarity = Moles of soluteVolume of the solution in L

Q: Which units do we use to report solubility?

A: To give the units used to report the solubility.

Q: defined as the amount of solute present in a solution

A:

Q: what happens to vapor pressure when solute increases?

A: When we put a solution in a container which is subjected to some kind of heat, evaporation takes…

Q: How many grams of sodium hydroxide must be dissolved in 200 g of water to produce a 4.00% by mass…

A: Given data: Mass of water = 200 g Concentration of solution = 4% by mass  Given data: Mass%=Mass of…

Q: Determine the mass of solute and solvent in a 12.0% (m/m) solution in 52.3 g of solution.

A: Given ;  % m/m = 12.0 %  mass of solution = 52.3 g  To calculate :  mass of solute mass of solvent

Q: 500g of Al2s3 is dissolved in H2o to make 15.0 L of solution. What is its normality? (MW:…

A: Normality = (wt.)/{(equivalent wt.)×Volume(L)} ---(1) We know that:  Equivalent wt = (moleculer…

Q: The mass of barium phosphate that is dissolved in 175 mL of a saturated solution is grams.

A:

Q: Determine the molarity of a solution formed by dissolving 95.8 g LiBr in enough water to yield 775.6…

A: Molarity is defined as the ratio of the number of moles of solute to the volume of solution in…

Q: What is the mass in grams of NaCO(s) (molar mass = 105.98 g/mol) that, when dissolved in 1.107E+2 mL…

A:

Q: A solution containing 41.684 g of LiF (M.M. 25.939 g/mol) per liter has a density of 1.391 g/mL.…

A: Given : Mass of LiF =41.684 Molar mass of LiF =25.939 g/mol Volume of solution =1 L=1000 mL Density…

Q: explain the term saturated, unsaturated, and supersaturated using the analogy of a classroom where…

A: The terms saturated , unsaturated, supersaturated are used to designate the amount of solute over…

Q: What mass of solution containing 2.00% sodium sulfate, by mass contains 1.50 g sodium sulfate?

A:

Q: A. Concentration Units 1.Complete the following table for aqueoUs solutions of Aluminum nitrate.…

A: As per the policy, we are only allowed to answer only 1st question. To get the answer of other…