If the experiment started with solid KHP instead of a solution, why would it be acceptable to use a graduated cylinder to measure the water to make the KHP solution when a volumetric flask is used to mix the NaOHsolution?

Q: A solution with a dnsity of 0.876 g/mL contains 5.0 grams of toluene and 225 grams of benzene.…

A: Applying formula of molarity M= n/Vl

Q: A 5.00 ml aliquot of a 0.20 M HCI solution is diluted to a final volume of 25.00 mL. What is the…

A:

Q: A total of 31.3 ml of 0.15 N NaOH was required to reach a phenolphthalein endpoint in  titrating…

A: Equivalent of acetic acid in vinegar can be calculated from titration because vinegar consists of…

Q: 1 gram of AgCl (s) is added to  flask containing 98.741mL of an unknown NaCl solution. The…

A: AgCl is a partially soluble salt whereas NaCl is completely soluble. Thus NaCl will extert common…

Q: A solution containing AgNO3 is mixed with a solution of NaCl to form a solution that is 0.10 M in…

A: Given,  Molarity of AgNO3  = 0.10 M Molarity of NaCl      = 0.075 M  Ksp of AgCl              = 1.77…

Q: Using the working concentration of the standard glucose solution, the following standard solutions…

A: The relation between volume and concentration can be written as -…

Q: What willl be the Molar concertration of the 333.85  HCl solution prepared from 4 mL of concentrated…

A: Volume of HCl solution = 333.85 ml  Can consider unit in ml to solve this problem. Volume of…

Q: A chemist needs to make 3 standard solutions of 10ppm, 50ppm, and 75ppm to read the chloride…

A: A stock solution with 1000 ppm of chloride, which has to be diluted into 10 ppm, 50 ppm and 75 ppm.

Q: Suka-tuba is a vinegar variety derived by fermenting the sap of a coconut tree. You are tasked to…

A: KHP is potassium hydrogen phthalate. KHP is a standard solution which is used for standardization of…

Q: You are working in an aseptic unit making TPN bags. One of your adult patients requires 20mmol of…

A: Given the stock solution= 5% sodium chloride.  Let the mass of the solution be 100g. Then the mass…

Q: Based from the Molarity of the palmitic acid solution that you were able to solve from the previous…

A: The equation of dilution is given by, M1V 1= M2V2  where M1 is the molarity of stock solution; V1…

Q: A standard solution of a chemical compound was prepared by diluting 10.0 mL of a 5,0 M stock…

A: Answer : V1 = 10.0 mL C1 = 5.0 M V2 = 100.0 mL C2 = (C1 × V1 / V2 ) On substituting the values into…

Q: A community in a mountainous area of Bohol uses water collected from a nearby natural spring. A…

A: To describe the preparation of the following reagents: 100 mL of 1.0M stock EDTA solution.  0 L of…

Q: 2 liters of solution 1 M Ca (OH) 2 mixed with 4 liters of HCl.pH solution of the mixture is:

A: In this question, we have to find out the correct answer of given problem by the help of THE…

Q: what are the materials for the preparation of 0.25 M Hydrochloric acid (HCl) solution using 3.86 mL…

A: We can solve this problem by recall the formula  of molarity Molarity = mole of solute/volume of…

Q: Calculate the amount of KNO3-N required to prepare 100 ppm solution in 250ml volumetric…

A: One gram in one liter is 1000 ppm.  1g in 1000 mL = 1000 ppm 0.001g in 1 L  = 1 ppm 1 ppm = 1 mg/L

Q: If a blood cell was placed in solution A that was made of 0.60 M NaCl, would solution A be an…

A: The approximate concentration of NaCl inside a blood cell is 154 mM or 0.154 M. A solution is…

Q: The solubility of lead (II) chloride is 0.45 g/100 mL of solution. What is the Ksp of PbCl2? Express…

A: Molarity is defined as number of moles divided by volume of solution in litres

Q: 0.8 M HCl was diluted to a fixed volume of 500 ml. If the new concentration is 0.20 M, what was the…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: Use the following data to calculate the Ksp value for each solid: a. The solubility of CdC2O4  is…

A: a) The solubility reaction of CdC2O4 is => CdC2O4 (s) ------> Cd2+ (aq) + C2O42- (aq) Since…

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: You have the following materials: 3g NaCl, 20ml water , 50ml beaker , evaporating dish , tripod ,…

A: Yes, NaCl can be dissolved in water and can be separated back from the water again. a) The pure…

Q: KHP + NaOH—> KNaP +H2O Data of trial Mass of KHP : 0.8084g Initial buret containing NaOH reading:…

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Q: Part B: Conductivity of pure water, solids and solutions. Substance Conductivity Substance…

A: A question based on conductivity of materials, which is to be accomplished.

Q: A sample of 6 M 10 mL H2SO4 is diluted to 100 ml. Calculate the concentration ( in gravimetric…

A: On the dilution of an acid, the concentration (molarity) of the solution decreases. The number of…

Q: Concentration (mg/dL) Stock Standard (mL) Distilled H2O Total Volume of Dilution (mL) 0 0.0…

A: Formula used Vol.of stock(V1) * Concentration of stock(M1) = Total Volume(V2) * Final…

Q: A solution of HCl was titrated against sodium carbonate. What is the normality of acid for Trial 3…

A: Given :  Mass of Na2CO3 sample = 0.3042 gm  Volume of HCl used = 39.40 ml

Q: What is usually the relationship between the volume needed to reach the end point (Vep) and the…

A: Equivalence point and end point are the terms associated with the titration of an acid with a base.…

Q: Sodium hypochlorite (NaClO) is the active ingredient in bleaching agents. What is the percentage…

A: To calculate percent composition of chlorine , we would use formula  % Chlorine =Molar mass of…

Q: 10. You want to purify 10 g of benzoic acid that has been contaminated with 0.2 g of salicylic acid.…

A: Given : Mass of benzoic acid to be dissolved = 10 g And the solubility of benzoic acid in boiling…

Q: You are provided with a 2.5mg/ml stock solution. In the experiment you are to use a 0.05mg/ml…

A: 1.  C1  ×  V1   =  C2  ×  V2   C1 = Initial concentration V1 = Initial Volume C2 = Final…

Q: Prepare serial dilutions of 0.08M potassium chloride and 0.08M SLS from the stock solutions…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: You used a stock 0.200M solution of CuSO4 for constructing a calibration curve. Assuming the density…

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Q: Q22:  Phosphate buffer solution is purchased as a(n) 2x stock solution. The solution is more…

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Q: a solution containing AgNO3 is mixed with a solution of NaCl to form a solution that is 0.65 M in…

A: Since AgNO3 and NaCl both are strong electrolytes, they will be dissociated into their constituent…

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

A: Fractional distillation It is the separation technique used for miscible liquids. It involves the…

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

A: Methanol and water fractional distillation is an analytical process used to separate compounds such…

Q: 1. A stock solution of aspirin was prepared by dissolving 0.05 g in 25 mL ethanol. The prepared…

A: The expression of dilution law is shown below: C1V1 = C2V2 where; C1 = concentration of known…

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: What willl be the Molar concertration of the 288.9  HCl solution prepared from 3 mL of concentrated…

A: 1- First calculate the moles of HCl :  Mass of HCl = [ Density × Volume ]  Mass of HCl = [ 1.18g/mL…

Q: While making a stock solution of NaSCN using 0.8 g of NaSCN in a 10 mL volumetric flask. 750…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: A solution of HCl was titrated against sodium carbonate. What is the average normality of acid in…

A: The balanced chemical equation for the reaction of HCl(aq) and Na2CO3(aq) is: 2HCl(aq) + Na2CO3(aq)…

Q: Q2: Calculate the solubility of Mg(OH)2 in 0.10 M NaOH.Calculate the solubility in grams/liter (use…

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

Q: Calculate equivalent weight of unknown acid using the following information: Mass of unknown acid=…

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Q: Identify and explain the mistakes made in the following laboratory protocols:  A 10.00 mM solution…

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Q: A calibration curve of NaCl conductivity (y-axis) vs concentration (mass percent, x-axis) is made.…

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Q: A cough syrup, which comes in a concentrated syrup, contains red dye #40. The red dye #40 syrup is…

A: The molarity of original syrup is 4.68×10-3 M. The concentration of original solution is diluted by…

Q: Which of the following is the best option for transferring 20 mL of a solution?  Use a 20 mL Mohr…

A: Answer: Different type equipment made of glass are used in the chemical laboratory  known as…

Q: Standardization of NaOH solution 1.trial 2.trial 15.0 mL of 0.1015 M HC1 + 15.3 mL NaOH 15.0 mL of…

A: At the equivalence point of the reaction, the moles of HCl and the moles of NaOH are equal. moles of…