A supply of NAOH is known to contain the contaminants NaCl and MGC12. A 4.955 g sample of this material is dissolved and diluted to 500.00 mL with water. A 20.00 ml sample of this solution is titrated with 22.26 mL of a 0.1989 M solution of HCI. What percentage of the original sample is NaOH? Assume that none of the contaminants react with HCI.

Q: What mass of KHP will be completely neutralized by 32.57 cm33 of 0.175 M standard NaOH solution? The…

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Q: An aqueous solution of potassium hydroxide is standardized by titration with a 0.171 M solution of…

A: Given 26.7 mL of 0.181 M HClO4  20.3 mL of KOH For neutralization,  we use the formula M1V1= M2V2 M1…

Q: 1) balance the following chemical equation for the reaction of hypothetical elements X, Y, and Z.…

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

Q: A 13.6 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid.…

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Q: A 9.44 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid.…

A: Given that : The mass of the sample = 9.44 g The volume of barium hydroxide = 29.4 mL The molarity…

Q: Calculate the mass of carbon dioxide gas that will form when 1.6900g of a sample of pure sodium…

A: Given : Mass of sodium carbonate i.e Na2CO3 = 1.6900 g Concentration of HCl = 0.301 M And volume of…

Q: An aqueous solution of sodium hydroxide is standardized by titration with a 0.142 M solution of…

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Q: A chemist places 2.9764 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: Given, Stock Solution 1 : mass of NaCl = 2.9764 g volume of flask = 100 mL Solution 2 : Volume…

Q: If 400 mL of water is added to 250 mL of a 2.4 M MgCl2 solution, what is the final concentration of…

A: Introduction: Molarity:  Molarity is often used to express the concentration of the solution. It is…

Q: Silver ions can be precipitated from aqueous solutions by the addition of aqueous chloride:…

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Q: A 5.00-mL sample of sulfuric acid, H2SO4, is diluted to 25.00 mL and the diluted solution is…

A: Dilution of a concentrated solution, does not change the number of moles of the substrate. Only its…

Q: An aqueous solution of calcium hydroxide is standardized by titration with a 0.113 M solution of…

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Q: Consider an acid-base neutralization reaction: H2SO4(aq) + 2 NAOH(aq) NazSO4(aq) + 2 H2O(1) --->…

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Q: 1. A 4.277-g sample of Al2(SO.)3 was dissolved in distilled water to make a total volume of 250.0 mL…

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Q: The concentration of Ca in a 200.0 mL sample was determined by precipitating the cation as CaC2O4.…

A: Mass of empty crucible = 26.6002 g Mass of crucible + CaO = 26.7134 g Mass of CaO = 26.7134 -…

Q: An aqueous solution of potassium hydroxide is standardized by titration with a 0.107 M solution of…

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Q: A 0.09948 M solution of NaOH was used to titrate a solution of an unknown concentration of HCl. A…

A: Molarity of the HCl solution can be determined using the given expression,

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.337 M HCl. All the CaCO3…

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Q: 25.0-mL sample of concentrated sulfuric acid, H2SO4, is diluted to 1.00 L and a 25.0-mL sample of…

A: At equivalence point of titration Moles of acid H+ = moles of base.  NaOH is a strong base so…

Q: 1. A 4.277-g sample of Al2(SO4)3 was dissolved in distilled water to make a total volume of 250.0 mL…

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

Q: Zinc dissolves in hydrochloric acid to yield hydrogen gas as follows:Zn(s) + 2HCl(aq) → ZnCl2(aq) +…

A: The values are given as follows:

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.281 M HCl. All the CaCO3…

A: Explanation Step-1 Molarity: Molarity is well-defined as the moles of a solute per litres of a…

Q: A mixture of hydrochloric and sulfuric acids is prepared so that it contains 0.575 M HCl and 0.145 M…

A: The moles of HCl and sulfuric acid is calculated.

Q: A 0.201 g sample of a monoprotic acid is dissolved in water and titrated with 0.160 M NaOH. What is…

A: Stoichiometry is mainly based on the calculation of moles and volumes. These two values are used to…

Q: The concentration of SO42–(aq) in a sample of river water can be determined using a precipitation…

A: Given,Volume = 6.0 mlConcentration of Ba2+ = 0.00100 M

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.364 M HCl. All the CaCO3…

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Q: An aqueous solution of calcium hydroxide is standardized by titration with a 0.111 M solution of…

A: Given : Molarity of hydroiodic acid i.e HI = 0.111 M Volume of HI solution required = 16.7 mL  And…

Q: An aqueous solution of sodium hydroxide is standardized by titration with a 0.149 M solution of…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: a. A student prepares a solution of hydrochloric acid that is approximately 0.1 M and wishes to…

A: Molarity (M) :-  The number of moles of solute dissolved in one litre of solution is defined as…

Q: A standard solution of NaOH was prepared by dissolving 12.5g of NaOH in enough water to give a total…

A: We know for a neutralization reaction V1* S1 = V2 * S2 Where V1 = Volume of the base required S1=…

Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)2(aq), until no further…

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Q: An aqueous solution of sodium hydroxide is standardized by titration with a 0.109 M solution of…

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Q: A student was tasked to neutralize 33.3 mL solution of 0.136 M H2SO4 (98.079 g/mol) using 0.222 M…

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Q: A student weighs out a 15.8 g sample of aluminum bromide, transfers it to a 300 mL volumetric flask,…

A: Volume of solution= 300 ml  Mass of aluminium bromide (m) = 15.8 g

Q: 4 7. A technician measures 1.75 L of a standard solution of hydrochloric acid, HCl(aq), with a…

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Q: An experiment was carried out as follows: 1.5766 g of an ammonium salt was placed in a beaker and 60…

A: The ratio of moles of solute to the volume of solution in liters is known as molarity.

Q: A 0.458 g sample of anhydrous sodium carbonate Na2CO3 is dissolved in deionized water and titrated…

A: Given: Mass of anhydrous sodium carbonate = 0.458 g. Volume of HCl = 21.34 mL Molar mass of sodium…

Q: Chromic acid, H2CrO4, is used in ceramic glazes and colored glass, and is particularly effective for…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: The solubility of the hydroxide of a hypothetical metal, Me, in water is 131.34 g MeOH per 44.13 mL…

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Q: A solution is prepared by dissolving 0.400 g of an unknown monoprotic acid in 50.0 mL of solution.…

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Q: 1. If 10. g of AgNO3 is available, what volume of 0.40 M AgNO3 solution can be prepared? Volume =…

A: The answer to the following questions are given as:

Q: One method used commercially to peel potatoes is to soak them in a solution of NaOH for a short…

A: Given, The normal range of concentration of NaOH = 3 to 6 M Volume of H2SO4 solution = 45.7 mL…

Q: A 12.5% (w/w) NiCl2 (129.61 g/mol) solution has a density of 1.149 g/mL. Calculate (a) the molar…

A: Given: 12.5% (w/w) NiCl2 ⇒12.5 g NiCl2 present in 100 g of solutionGiven: Density ofsolution = 1.149…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4,, in a 6.5mL sample taken…

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Q: A sample of solid sodium hydroxide, weighing 13.20 grams, is dissolved in deionized water to make a…

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Q: e g.4 25.5 mL of HCI solution are titrated with 67.5 mL of 1.00 mol/L NaOH. The density of the HCI…

A: Hydrochloric acid reacts with sodium hydroxide to form sodium hydroxide and water. The equation for…

Q: Hcl + NaHCo3 -----> NaCl + H2O +CO2  a sample of NaHco3 weighs 0.1015g requires 47.21 ml of Hcl to…

A: Introduction :  We have to calculate molarity of HCl.

Q: An experiment was carried out as follows: 1.5766 g of an ammonium salt was placed in a beaker and 60…

A: Given % of NH4+ in the salt = 37.5 % Therefore 1.5766 g salt contain 1.5766 × (37.5/100) = 0.5912 g…

Q: A 8.84 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid.…

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Q: An aqueous solution of calcium hydroxide is standardized by titration with a 0.110 M solution of…

A: Given, Concentration of perchloric acid = 0.110 M Volume of base = 24.7 mL Volume of acid = 27.3 mL…