The molar mass of potassium hydrogen phthalate (KHC8H4O4, abbreviation KHP) is 204.22 grams per mole. To determine the molarity of an unknown NaOH solution, a student weighed out 1.32 g of solid KHP and dissolved the solid in 25.4 mL of DI water. The resulting solution was used in a titration with the unknown NaOH solution (3 drops of phenolphthalein was used as an indicator). The balance chemical equation is given below. If the student used 15.06 mL of the unknown NaOH solution in the titration, what is the molarity of the NaOH solution

Q: In a titration experiment, a chemist finds that a 25.0 mL solution of aq. HCl requires 51.3 mL of…

A: n-factor of HCl, nHCl = 1 Molarity of HCl, MHCl = ? Volume of HCl, VHCl = 25 mL = 0.025 L n-factor…

Q: To determine the amount of iron in a dietary supplement, a random sample of 15 tablets weighing a…

A: A numerical problem based on quantifying Fe in the given tablet, which is to be accomplished.

Q: Sodium hydroxide is used extensively in acid-base titrations because it is a strong, inexpensive…

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Q: 2.00 g of limestone was dissolved in hydrochloric acid and all the calcium present in the sample was…

A: Given: The mass of limestone is 2.00 g. The weight of the precipitate is 2.43 g. To find: Percentage…

Q: A strontium hydroxide solution is prepared by dissolving 12.50 g of Sr1OH22 in water to make 50.00…

A: mass of strontium hydroxide (m) = 12.50 g volume of solution (V) = 50.00 ml

Q: The Burke Museum at the UW is analyzing a dinosaur bone sample for the amount of calcium it…

A: The solid

Q: A 2.00g sample of limestone was dissolved in hydrochloric acid and all the calcium present in the…

A: Ca2+ + C2O42- ----CaC2O4

Q: A 18.2 ml sample of vinegar (dilute acetic acid, CH3COOH) is titrated and found to react with 91.2…

A:

Q: In the following acid-base neutralization, 1.68 g of the solid acid HC6H5O (94.12 g/mol) neutralized…

A: Moles of acid = mass / molar mass = 1.68 / 94.12 = 0.01785 approx Since from the reaction, 1 mole of…

Q: The titration of an impure sample of KHP  found that 30.00 mL of 0.050 M  NaOH was required to react…

A: Percentage of KHP can be calculated using formula: Percentage of KHP = (mass of KHP / mass of…

Q: What is the molarity of a solution of calcium chloride which contains 33500 mg of solute in a total…

A: Molarity is calculated using formula : Molarity = Moles of soluteVolume of solution (L)   Note : As…

Q: A mixture of barium chloride and sulfuric acid yield the precipitate barium sulfate and hydrochloric…

A: fullscreen

Q: A stock solution of potassium permanganate (KMNO4) was prepared by dissolving 10.0 g KMNO4 with DI…

A: To solve this problem we will first calculate the number of moles of KMnO4   Then Molarity will be…

Q: 243 ml solution of aqueous iodine is prepared by dissolving iodine crystals in water. a fifty ml…

A: The balanced reaction is as follows: H3AsO3(aq) + I2 (aq)+H2O (l)→2I-(aq)+H3AsO4(aq)+2H+(aq) Thus 1…

Q: Suppose that 2.5 ml of 20% AgNO3 solution (density is 1.19 g/ml) was used to precipitate the…

A: Given,  Mass percentage of AgNO3 in solution = 20%  Volume of AgNO3 = 2.5 mL  Density of the…

Q: An unspecified amount of sulfuric acid is added to 1.19 g of solid barium chloride, then water is…

A: Given: mass of BaCl2 = 1.19 g Total volume of solution = 1.72 L molar mass of BaCl2 = 208.23 g/mol

Q: A solution is prepared by dissolving 44.3 grams of Aspirin( C9H8O4)  in water to produce 2.13 g/ml…

A: Mass of aspirin (C9H8O4) = 44.3 grams  Density of solution = 2.13 g/ml  Number of moles of solute =…

Q: A 0.3146 g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution…

A: The reaction involves the determination of the unknown ions in a solution as their insoluble salt…

Q: A student wishes to determine the mass percentage of barium in a 2.016g sample. The student…

A: Given : Mass of sample = 2.016g Molarity of H2SO4 = 0.20M Volume of H2SO4 = 20ml

Q: Calculate the molarity of a KNO, solution prepared by adding 10.1103 g KNO, in a 250 mL volumetric…

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Q: By pipet, 10.00 mL  of a 0.823 M stock solution of potassium permanganate (KMnO4) was transferred to…

A:

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 4.30 mL sample. About…

A:

Q: The sodium salt of cacodylic acid, a weak acid, has the formula NaO2As(CH3)2.3H2O. Its molar mass is…

A: The buffer we have here is of a weak acid and and its conjugate base where cacodylic acid is the…

Q: A sample of 7.44 grams of magnesium chloride is weighed out on a balanced and prepared to a volume…

A: Interpretation: A sample of 7.44 grams of magnesium chloride is weighted out on a balanced and…

Q: You are asked to determine the percentage of the components of a mixture containing sodium iodide,…

A: Given that, Mass of BaSO4 recovered = 2.04 gms Total Mass of mixture sample = 4.42 gms Therefore, %…

Q: You have a solution which is 45.6% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

A:

Q: . An aqueous solution of sodium carbonate, Na2CO3, is titrated with strong acid to a point at which…

A:

Q: A 10.0 mL sample of Potassium iodide solution was analyzed by adding an excess of Silver nitrate…

A: The balanced molecular equation for the reaction between Potassium iodide and Silver nitrate is…

Q: Thallium(I) sulfate is an active ingredient in rat poison. We can analyze a sample for the mass…

A:

Q: artaric acid, H2C4H4O6, is a diprotic acid that naturally occurs in the production of apple wine.…

A: Given data,Total volume of wine sample=50mLVolume of NaOH used for…

Q: Vinegar is a solution of acetic acid, HC2H3O2, dissolved in water. A 5.84 g sample of vinegar was…

A: Number of moles and mass of acetic acid can be determined.

Q: 6 ml of concentrated HCl acid solution was diluted to 180 mL. Then 65 mL sample of the diluted…

A: The volume of the concentrated HCl solution taken = 6 mL The volume of the diluted HCl solution =…

Q: An aqueous solution of sodium fluoride, NaF, contains 1.16 grams of sodium fluoride and 17.5 grams…

A:

Q: Suppose you are titrating vinegar, which is an acetic acid solution of unknown concentration, with a…

A:

Q: Consider

A: We will calculate mass percent of acetic acid

Q: ium hydroxide solution according to the equation   HC2H3O2+NaOH⟶H2O+NaC2H3O2   If you require…

A: The given data : The volume of NaOH = 34.58 mL The molariry of NaOH= 0.1036 M The volume of acetic…

Q: A 66.7 mL sample of 18.0 M sulfuric acid was diluted with enough water in a volumetric flask to make…

A: We know, Vinitial x Sinitial = Vfinal x Sfinal Therefore, Sfinal = (Vinitial x Sinitial) / Vfinal…

Q: If 100.0 mL of potassium dichromate solution (10.0 g of K2Cr207 per liter) was mixed with 75.0 mL of…

A:

Q: You are asked to determine the percentage of the components of a mixture containing sodium iodide,…

A: The percent Mg(OH)2 in the original sample mixture is to be calculated. Given: Mass of sample =…

Q: You are asked to determine the percentage of the components of a mixture containing sodium iodide,…

A: (a) Mass of NaI recovered = 0.95g NaI Total mass of mixture = 4.82 g Thus, percent NaI in sample =…

Q: One cup of fresh orange juice contains 550 mg of ascorbic acid (vitamin C, ). Given that one cup =…

A: Molarity is defined as total number of moles of solute dissolved in one litre of solution Molarity…

Q: A Chemistry Student Trainee at a certain University Chemical Laboratory was instructed by the…

A: Given: Normality=0.25 NVolume=40.0 mL To find: Mass of Potassium acid phthalate

Q: Vinegar Vinegar is a dilute solution of acetic acid, often represented by the symbol "HAc" in…

A:

Q: Riboflavin, also known as vitamin B2, is a vitamin found in food and used as a dietary supplement..…

A: In order to find the molarity of the resultant solution we first write down the given data: Mass of…

Q: What mass of solid potassium oxalate (K2C2O4), when dissolved in an acidic solution, would be…

A:

Q: McQuarrie • Rock Galloyly A 0.3146 g sample of a mixture of NaCI(s) and KBr(s) was dissolved in…

A: It is given that 0.3146 g of a mixture of NaCl and KBr is dissolved in water, and 37.4 mL of 0.08765…

Q: A student was asked to determine the percentage of the components of a mixture of potassium bromide…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: 0.41g of an unknown acid, HA, titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH…

A: Given data,   28.10 mL = 0.02810 L of NaOH   Molarity of NaOH =0.1055 M

Q: The concentration of acetylsalicylic acid, C9H8O4, in aspirin tablets is determined by hydrolyzing…

A: Solution A stock resolution could be a focused resolution which will be diluted to some lower…

Q: You are asked to determine the percentage of the components of a mixture containing sodium iodide,…

A: Given: mass of mixture sample = 4.82 g mass of NaI recovered = 0.95 g mass of BaSO4 recovered = 2.04…

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.