1-melting point helps to identify unknown samples. true or false 2-the reaction of one mole of hydro chloric acid to convert sodium carbonate to sodium chloride. true or false 3-distribution ratio is equal to the concentration of solute in the aqueous phase divided by its concentration in the organic phase. true or false 4-the end point and the equivalence point are not exactly the same. true or false

Q: Five standard solutions of HBr are prepared by serial dilution in which, at each stage, 10.00 mL are…

A: Given: The concentration of the most dilute solution (final concentration) is 3.42 x 10-6 M The…

Q: A lab technician is asked to prepare 100 ml of 5% working solution from a 25% stock sulfosalicylic…

A: If the technician wants to prepare a 5% solution out of the 25% solution, he should do it as : The…

Q: II. Determining the Volume of 0, Produced from the H20, Solution code number of H,O, solution Equate…

A: H2O2(aq) undergoes decomposition to form H2O(l) and O2(g). The balanced chemical equation is:…

Q: Step 1: In tube 1, you add 100 ul of plasma to 900 ul of distilled water.  Step 2: In tube 2, you…

A: The final/total dilution factor can be obtained by the multiplication of individual dilution factors…

Q: Calculate the volume of concentrated ~ 0.1250 M copper (II) acetate monohydrate solution needed to…

A: Dilution of solution occurs when water is added to the concentrated solution. The concentration…

Q: You are to prepare each of the following 100-mL Test Reagents in the Laboratory with concentrations…

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Q: The distribution coefficient of hydrogen sulfide between benzene and water at 25 degrees Celsius is…

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Q: If Mg(OH)2 has a Ksp of 9.0 × 10–9, then what is the solubility of Mg(OH)2 in pure water? Give your…

A: Solubility of a compound is defined as the maximum amount of it which can be dissolved until a…

Q: The separation and purification processes given below and the method used against them are given.…

A: The process in which the separation of components from the mixture of liquid by using the…

Q: Calculations: Determine the molarities of Solutions 1, 2, 3 and 4. Apply the rules of significant…

A: Solution: By defination, molarity is nothing but the ratio of moles of solute in given liter of the…

Q: During osmosis Select the correct response: gases diffuse through a membrane into a solution and…

A: The osmosis is a process by which the solvent molecules passes through the membrane which is a…

Q: 0.54 g phthalic acid fully dissolve in 100 ml water at room temperature. How much is phthalic acid…

A: Amount of phthalic acid dissolves in the amount of water is simply corresponding to the density of…

Q: A group was given the responsibility of performing a recrystallization experiment in their…

A: Solution- Data given- compounds A and B. Solubility in g/100 mL solvent.

Q: Cryoscopic Determination of Molecular Weight Post-Lab Questions (40 Points) Name Lab Instructor 1. A…

A: Freezing point is a colligative property meaning it depends upon the amount of solute of ions…

Q: 2. Salt-in effect implies that solubility: a. Remains constant with increase in ionic strength b.…

A:

Q: Calculate the concentration of a soluation when a 15 mL sample of 6 M acetic acid solution is…

A: Given:-               To Calculate the concentration of a solution when a 15 mL sample of 6 M acetic…

Q: Using this percent change data, determine the concentration of sucrose that would be isotonic.  it…

A: A question based on isotonic concentration, which is to be accomplished.

Q: In an alternate procedure, a 0.50 M nickel (II) nitrate solution was used to prepare the standard…

A: Given : Concentration of nickel (II) nitrate i.e Ni(NO3)2 stock solution = 0.50 M Volume of Ni(NO3)2…

Q: The concentration of the HCl solution obtained by Mix 150 mL HCI, 0.4 M with 100 mL of HCl is... A.…

A: Given: Molarity M1 of 1st HCl = 0.4 M Volume V1 of 1st HCl = 150 mL Volume V2 of 2nd HCl = 100 mL…

Q: Solid-liquid extraction is an effective method to isolate a the desired soluble component in a solid…

A: Solid-liquid extraction is an effective method to isolate a the desired soluble component in a solid…

Q: 3. It is used to convert the known weight of the precipitate to the corresponding weight of the…

A: ppm is an abbreviation used for parts per million.

Q: What would be the concentration in ppm of the final solution made by mixing 200. mg of ethanol into…

A: PPM stands for parts per million. It is the mass of solute  dissolved in solution and multiplying…

Q: 100ml of sodium hydroxide  solution is required 20ml of 0.5 N sulfuric acid  solution to neutralize…

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Q: Dilute HCl (MW = 36.5 g/mol) contains approximately 10%(w/v) HCl. How many mL of dilute HCl is…

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Q: What are the true/theoretical density values of each concentration of NaCl: 15%, 20%, and 25%?.…

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

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Q: c. Quantitatively transferring dissolved solids from a beaker by pouring washings into the final…

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

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Q: the differences between a Stober procedure and a water/oil emulsion procedure

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Q: Place a "Yes" marker for those characteristics that apply to each type of mixture; and, a "No" if…

A: Colloids : It is heterogeneous mixture in which solute particles are dispersed in a dispersion…

Q: how many grams of phthalic acid remained in the chilled water

A:

Q: Choose the solution with the lowest theoretical freezing point:   0.25m sucrose 0.5m sucrose 1.0m…

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Q: Suppose that you have a 1:1 mixture of compounds that is comprised of compound X and compound Y. You…

A: The amount of solute which can be dissolved in given amount of solvent is termed as its solubility.…

Q: Match the letters on the image with what they represent. TEMPERATURE- D B F QG Freezing point…

A: The answer is as follows:

Q: From the graph of temperature vs. volume data from a fractional distillation of 100 mL…

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Q: From the graph of temperature vs. volume data from a fractional distillation of 100 mL…

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Q: If a 10.0mL volumetric flask is used to prepare the dilution, what volume of 0.50 M cobalt (II)…

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Q: In the lead content analysis of a wastewater sample, 50.00 mL of the original sample was taken and…

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Q: Arrange the boiling points of the aqueous solutions, relative to pure water. Assume complete…

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Q: 5-A solution of common salt in water is prepared by adding 30 g of salt ( CaCl2 ) to 100 g of water,…

A: Given: Mass of salt = 30 g Mass of water = 100 g Atomic mass of Ca = 40 g/mol Atomic mass of Cl =…

Q: Describe the characteristics that a crystal obtained through recrystallization must have, the final…

A: Recrystallization is basically a purification technique. Recrystallization is a process in which the…

Q: A capstone group working on motility of bacteria ordered TTC (Triphenyl Tetrazolim Chloride), which…

A: Given that, a capstone group first wanted to prepare a stock of 100 mM of TTC (Triphenyl Tetrazolim…

Q: You make a calibration curve using dilute concentrations of dye and determine the equation of the…

A: Lambert's law states that when a light propagates through a medium , the loss of light is…

Q: Explain how you would create a 1:1000 dilution of your protein stock solution.

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Q: Isotonic saline solution is 0.154 M NaCl(aq). What is the solubility of AgCl (Ksp = 1.8 × 10−10) in…

A: Given data : Concentration of NaCl = 0.154 M Ksp of AgCl = 1.8 × 10-10

Q: You make a calibration curve using dilute concentrations of dye and determine the equation of the…

A: Beer-Lamberts law used in Spectrophotometry. Expression used A= ϵ.c.l Where, A=Absorbance, ϵ = molar…

Q: the solubility of any organic material in a given solvent is due to the intermolecular forces…

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Q: A solution containing only water and glycerol (MW=92.1 g/mole) has a mole fraction for glycerol of…

A: Using mole fraction, we will calculate molarity of solution.

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.