A 250 cm solution is prepared by dissolving 8,0 g sodium hydroxide in distilled water. a) Calculate the concentration of the solution. b) 25 cm of the same standard solution is neutralized by adding 40 cm of dilute sulphuric acid solution. The dilute acid solution was prepared by adding 10 cm of concentrated sulphuric acid to 490 cm3 of distilled water. Calculate the concentration of the concentrated acid.

Q: A student places 20.00mL of .1005 M HCl in a flask and adds a few drops of phenolphthalein. She adds…

A: Volume of HCl, V1 = 20.00 mL Molarity of HCl, M1 = 0.1005 M Volume of NaOH, V2 = final reading –…

Q: A standard solution of FeCl3 was prepared and its molar concentration was determined to be 2.000 M.…

A: Initial moles of FeCl3 = 2.00M × 10.00mL = 20mmoles FeCl3 dissociates into Fe3+ and 3Cl- ions. Thus,…

Q: 3. A series of dilute NaCl solutions is prepared, starting with an initial stock solution of 0.100 M…

A: Given that -  Molarity of stock Solution of NaCl = 0.100 M  Volume of stock Solution = 10 mL…

Q: ollowing the procedure, a student recorded the initial volume of sodium hydroxide in his buret as…

A: Molarity can be defined as the number of moles of a substance that is dissolved in 1 liter of the…

Q: A diluted bleach solution was found to have a concentration of 0.0250 M. It was originally prepared…

A: Given that : The concentration of diluted bleach solution = 0.0250 M The final volume of solution =…

Q: A total of 25.00 cm3 of 0.300 M sodium hydroxide solution is exactly neutralized by  0.100 M…

A: Balance chemical equation : Let volume of sulfuric acid needed = V mL H2SO4  +  2NaOH  --->…

Q: One cup of fresh orange juice contains 124 mg of ascorbic acid. Given that one cup = 236.6 Ml.…

A: Given,Ascorbic acid = 124 mgVolume = 236.6 mL

Q: solution is prepared by dissolving 43.2 g magnesium acetate in enough water to make 150 mL of stock…

A:

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: Given: Concentration of NaOH (MNaOH) = 0.1328 M Volume of NaOH (VNaOH)  = 12.39 mL Volume of H2SO4…

Q: student was given a solution of unknown molarity of Potassium Hydroxide (KOH). On the lab bench the…

A: STEP 1: Following are few important properties of standard solution- Its concentration must remain…

Q: What is the theoretical concentration of a standard solution prepared by 2.50 g of NaOH (MW=40.00…

A:

Q: A chemist needs 225 mL of 3.0 M HCl. What volume of 12 M HCl must be dissolved in water to form this…

A: Given: Volume of HCl (V1)=225 ml Molarity of HCl (M1)=3.0 M M2=12 M To find: V2 Solution: According…

Q: which of the following substances is commonly used to reduce soil acidity? Ammonium sulphate Sodium…

A: a) For reducing the acidity of the soil, we need a basic substance. Of the given options, only…

Q: A 0.3120 g sample of potassium hydrogen phthalate is dissolved in 100.0 mL of water. If 29.36 mL of…

A: The moles are the unit of the substance and it is explained as 6.022×1023 atoms/molecules/ions. It…

Q: Which of the following best describes the concentration of a solution A) The number of moles of…

A: The amount of solute dissolved in a total volume of the solution  Option "B" is correct.

Q: A student finds that it takes 46.16 mL of 0.2915 M NaOH to titrate 20.00 mL of sulfuric acid…

A: The reaction between Sulfuric acid (H2SO4) and Sodium hydroxide(NaOH) is given as:H2SO4 + 2 NaOH →…

Q: In order to prepare 10% 100 mL of HCl solution from 37% HCl solution, how many mL of concentrated…

A: For Concentrated HCl solution : Concentration, C1 = 37 % Volume, V1 =? For New HCl solution :…

Q: Consider a 0.586 M aqueous solution of barium hydroxide, Bа(ОН)2Ba(ОН)2 (ад). How many grams of…

A:

Q: The concentration of an unknown sample of sulfuric acid was determined by the method used in this…

A:

Q: For the following, use the relation of M1V1 = M2V2, where M represents the molarity of the solution,…

A: Given that -  Mass of NaCl = 5.84 g  Volume of Solution = 100 mL  Molarity of first diluted Solution…

Q: Determine the concentration of 7.13 g zinc nitrate (MW = 189.4 g/mol) dissolved in 200.0 mL…

A: The solution is as follows:

Q: A beaker contains a water solution of unknown monoprotic* acid (molar mass of the acid is known to…

A: suppose monoprotic acid is HA                    2HA + Ca(OH) 2  ====> CaA2  + 2H2O  This is…

Q: Suppose each student in a laboratory prepares two aqueous solutions, Solution A and Solution B, then…

A:

Q: Help

A: Given, Initial molarity of stock solution, M1 = 2.50 M Final molarity of the solution, M2 = 1.25 M…

Q: What is the maximum volume of 0.25 M sodium hypochlorite solution (NAOCI; laundry bleach; MW= 74.44…

A:

Q: You are asked to create a 0.35 M solution of calcium chloride (CaCl2) using a 250.0 mL volumetric…

A:

Q: A 32.5 mL sample of an 5.6 % (m/v) KBr solution is diluted with water so that the final volume is…

A: We have to predict the final concentration.

Q: A student made 10.0 mL of a 0.750 M solution in the following way. First, the student took some…

A:

Q: A solution of 250.0 mL of a 0.200 M NaHCO3 solution is to be prepared. The solution is diluted by…

A: In the given problem, the molarity of the serially diluted solution can be calculated by using the…

Q: You are asked to create a 0.35 M solution of calcium chloride (CaCl2) using a 250.0 mL volumetric…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: An unknown amount of water is added to 75 mL of a 3.5 M aqueous glucose solution. What can be said…

A: Solution consists of two parts - solvent and solute. In chemistry in general concentration of…

Q: What do you understand about the manufacture of

A: Addition of solvent is called dilution , in dilution process no.of moles of solute is constant…

Q: What is the concentration of an aqueous sodium sulfide solution that is prepared by dissolving 18.6…

A: Given, mass of Na2S = 18.6 g Volume of Solution = 2.00*102 mL 1000 mL = 1L 200 mL = 0.2 L  Molar…

Q: Celery stalks that are immersed in fresh water for several hours become stiff. Similar stalks left…

A: Answer - Celery stalks that are immersed in fresh water for several hours become stiff. Similar…

Q: A student is standardizing a sodium hydroxide solution.  He used 23.22 mL of NaOH to neutralize…

A:

Q: 1. How many grams of potassium permanganate, KMnO4, are present in 125 mL of a 0.0850 M solution?…

A: Here, we have to calculate: the mass of potassium permanganate, KMnO4, that are present in 125 mL…

Q: . M B. N C. m D. n E. X 1. Which symbol expresses the amount of solute by the amount of solution 2.…

A: 1) The amount of solute by the amount of solution is Molarity. The symbol of Molarity is M.…

Q: 1. This is the mass of the substance that is chemically equivalent to a cubic centimeter (cc) of the…

A: Interpretation: To write one word for the following given statements.

Q: A 10.00 ml sample of a solution of hydrofluoric acid, HF, is diluted to 500.00 ml. A 20.00 ml…

A: At equivalence point the molarity of both HF and NaOH becomes equal in the titrated solution. From…

Q: You

A: You can used the formula direactly,  ( M2 • V2 ) resulting Solution = ( M1 • V1 )stock solution…

Q: 2) A solution contains 5.4 grams of selenium in 250 kg of water. Calculate the concentration of…

A:

Q: A) You have a stock solution of 14.8 M NH3. If you take a 10.0 mL portion of the stock solution and…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 1. Calculate the molar mass of sodium carbonate, NazCO, 105.9884 g/mol 2. Calculate the mass of…

A:

Q: Solution X 100 mL of 0.10 M NAOH(aq) is mixed with 100 mL of 0.10 M HBr(aq) Solution Y 100 mL of…

A:

Q: If you require 30.51 mL of .1090 M NaOH solution to titrate 10.0 mL of HC2H3O2 solution, what is the…

A: Chemical reaction between NaOH and acetic acid:                      NaOH + HC2H3O2  →  C2H3O2Na +…

Q: Concentration of NaOCl in Full-strength Commercial Bleach:   A diluted bleach solution was found…

A: Given that : Concentration of the diluted bleach solution = 0.0284 M The volume of original solution…

Q: Usually HCl is sold as a solution, and figuring out how to prepare necessary dilutions could be…

A: As you have posted question with multiple parts and have not mentioned which part to solve hence we…

Q: Suppose each student in a laboratory prepares two aqueous solutions, Solution A and Solution B, then…

A: Interpretation: We have to predict the conductivity of these given solutions.

Q: How do you prepare a 200-mL of 0.120 M NaOH solution? From solid NaOH pellets (by dissolving) From a…

A: The method of preparing the solution by pellets and dilution is different. In order prepare the…