A chemist attempts to prepare some very pure crystals of borax by dissolving 100g of Na2B4O7 in 200 grams of boiling water. He then cools the solution slowly until some borax crystallizes out. Calculate the grams of borax recovered in the crystals per 100 grams of initial solution (Na2B4O7 plus water), if the residual solution at 55oC after the crystals are removed contains 12.4% Na2B4O7.What is the percent yield or percent recovery of Na2B4O7

Q: A solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute,…

A: Given: The mass of NaCl = 40.00 g The volume of the solution = 1 L Temperature = 25 °C The…

Q: onsider the solubilities of a particular solute at two different temperatures.…

A: For a saturated solution,   the amount of solute dissolved is equal to the solubility . that is…

Q: A 120.0 gram solution is prepared at 80° C that is saturated with NaNO3 (MW=85.0 g/mole; solubility…

A: Mass of solution prepared at 80° C = 120.0 gSolubility of NaNO3 at 80° C = 150 g NaNO3/100 g…

Q: (1a) Pure benzophenane freezes at 66.6 °C. A solution of 7.75 g of biphenyl (C12H10; molar mass =…

A:

Q: What mass of silver nitrate will precipitate out of solution if 950.0g of silver nitrate is…

A: Given data,Mass of AgNO3=950gMass of water=225gInitial temperature=50oCFinal temperature=20oC

Q: calculate the mass of copper(II) acetate monohydrate needed to prepare 100.0 mL of 0.1250 soluation…

A: As we know  Molarity = mass/ molar mass * Volume(Lt)

Q: Suppose you dissolve 4.50 g of NaOH in 500. mL of methanol, which has a density of 0.791 g/mL. The…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: A chemist wants to extract a solute from 100 mL of water using only 300 mL of ether. The…

A: Given data  100 mL of water  300 mL of ether. The distribution constant, KD, 1.77. Calculate q,…

Q: -4 At 25.0 °C the Henry's Law constant for nitrogen trifluoride (NF, gas in water is 7.9 x 10…

A:

Q: If you know that sodium bicarbonate has a solubility of 8.4 g in 100g water at 18 °C I. Calculate…

A: This question deals with the solubility, concentration, & dilution of sodium bicarbonate in…

Q: The solubility of NH4B is 38g/100 mL of water at 20°C and 65g/100 mL at 80°C. 1. I add a certain…

A: saturated solution :- solution in which the maximum amount of solute dissolved or the Equilibrium is…

Q: A solution of 5.00 g acetic acid in 100 g benzene freezes at 3.38C. A solution of 5.00 g acetic acid…

A:

Q: Using the solubility curve for K2Cr207 to the right, what is the 80 maximum amount of grams of 70…

A: Solubility curve is used to determine the mass of solute in 100g (100 ml) of water at a given…

Q: Addition of 50.00 mL of 2.238 m H2SO4 (solution density = 1.1243 g/mL) to 50.00 mL of 2.238 M BaCl2…

A:

Q: solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute, in…

A: Given : Mass of solute = 40g Density = 1.000g/ml

Q: The normal freezing point of cyclohexane is 6.50 °C. A solution is prepared by dissolving 148.6 mg…

A: Given,  Normal freezing point of cyclohexane = T0f = 6.50 °C Mass of unknown nonelectrolyte (solute)…

Q: Calculate the formal concentration in molarity of a sodium acetate solution prepared by diluting…

A: Using equation of dilution we can find final concentration of solution.

Q: At 50 Celsius, 37g NaCl dissolve in 100g H20 to make a saturated solution. Based on this…

A: Saturated Solution: A solution has been prepared by dissolving solute in definite amount of solvent…

Q: solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute, in…

A:

Q: A solution was made by mixing 6.25 g of heptane (C7H63, molar mass = 100.21 g/mol) with 46.2 g of…

A:

Q: When 1.504 g of a solute is dissolved in 5.012 g of solvent (benzene), the solution freezes at -7.05…

A: Given: Mass of solute = 1.504 g Mass of solvent (Benzene) =5.012 g Freezing point of the solution…

Q: Predict the vapor pressure of a solution prepared by mixing 37.5 g solid KNO3 with 175 g water at…

A: The question is based on the concept of solutions. we have to calculate vapour pressure of the…

Q: A natural product, P, has a Kp between water (aq) and ethyl acetate (ea) of 13.4. A 50.00-mL sample…

A:

Q: 2. An organic compound has a solubility of 2 grams/100 mL at 0 °C and 6 grams/100 mL at the boiling…

A: The solubility of a substance in a specific volume of the solvent indicates that the maximum amount…

Q: When 397.g of benzamide C7H7NO are dissolved in 1400.g of a certain mystery liquid X, the freezing…

A: First of all we calculate the Kf of mystery liquid X using benzamide. For this purpose we use…

Q: Ice cubes from a freezer have a temperature of about -12°C (10°F), which is cold enough, but contact…

A: Det Tf=i ×Kf×m ion ,i for Nacl-->Na+ +Cl- i=2

Q: The solubilities of three salts in water are shown in 1000 Pb(NO,)2 the graph. 900 800 For each…

A: The term solubility refers to the chemical property by which the given solute or the substance is…

Q: A solution was made by mixing 6.25 g of heptane (C7H63, molar mass = 100.21 g/mol) with 46.2 g of…

A: Freezing-point depression is the decrease of the freezing point of a solvent on the addition of a…

Q: The solubility of pure oxygen in water at 20.0°C and 760 torr is 4.30 x 10°g O2 per liter H₂O. When…

A: Solubility of oxygen at 760 torr is 4.3 mg per liter of water.Conc. of O2 = 4.3/32 = 0.1344 mM

Q: Ckated stateement. A mixture with particles that settle out if undisturbed. The visible erratic…

A:

Q: The solubility limit of a solute at 20. °C and 1.0 atm is 13.8 g of solute per 1 L of water. What…

A: The explanation is given below-

Q: For a solution containing 0.050 M sodium butanoate (the sodium salt of butanoic acid, butanoic acid…

A: Answer:Sodium butanoate is the salt of weak acid and strong base, therefore, butanoate ion will get…

Q: The boiling point of chloroform, CHCl3, is 61.700 °C at 1 atmosphere. Kb(chloroform) = 3.67 °C/m In…

A: A numerical problem based on colligative properties which is to be accomplished.

Q: Excess crystals K,Cr,0, Crystals of K2Cr207 are added to water and dissolved until a large excess of…

A: The picture represents a saturated solution. A saturated solution is the solution in which nor more…

Q: a sodium chloride/ calcium chloride mixture was found to produce 0.16g of precipitate after…

A: In chemical analysis, determining the composition of a mixture often involves understanding the…

Q: A chemistry student adds a quantity of an unknown solid compound X to 2.00 L of distilled water at…

A: Given,precipitated amount of X after drying and weight = 0052 kg  at 30. oCvolume of water = 2.00 L

Q: What is the concentration in molarity of an aqueous solution which contains 1.91% by mass ethylene…

A:

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A:

Q: Consider the following substances: Lead (II) Carbonate, PbCO3 KSP = 7.40 x10-14 Magnesium Carbonate,…

A:

Q: Camphor is a white solid that melts at 179.50°C. It has been used to determine the molecular weights…

A: given mass of unknown compound (solute) = 1.08 g Kf  = 39.7°C/m Mass of solvent = 73.6 g = 73.6×10-3…

Q: A solution is prepared by adding 425g of AgNO3 to 0.150L of water at 40.0∘C. The solubility of AgNO3…

A: The solubility of a compound is the dissolution of a solute in the solvent. It is measured in the…

Q: A certain liquid X has a normal freezing point of -6.90 °C and a freezing point depression constant…

A: We have to predict the freezing point of solution.

Q: Concentration 1 L 0.510 mol/L Excess crystals K,Cr,0, Crystals of K2Cr2O7 are added to water and…

A: Given : There are both dissolved K2Cr2O7 and crystals of K2Cr2O7 in the solution.

Q: A solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute,…

A: Given : Mass of solute = 40g NaCl (f.w. = 58.44 g mol–1) Water (m.w. = 18.02 g mol–1) Volume of…

Q: The freezing point of a solution prepared by dissolving 127.3 mg of caffeine in 10.0 g of camphor is…

A:

Q: A sucrose solution is prepared to a final concentration of 0.300 M . Convert this value into terms…

A: Molarity = number of moles / volume in liter

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.