On their third titration trial, the CHM 111 student used 18.80 mL of 0.205 M NaOH(aq) to neutralize 25.0 mL of HCl(aq). Calculate the molar concentration of the HCl solution to the correct number of significant figures.

Q: A chemistry student weighs out 0.110 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

A: • Concentration = No.of MolesVolume• No.of Moles = Concentration x Volume•  No.of gram Equivalent =…

Q: A50 ml. sample of a 48 0 % (m/v) acetic acid (HC,H3O2) solution is added to water to give a final…

A:

Q: An analytical chemist weighs out 0.344 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given: Mass of acid = 0.344 g Molarity of NaOH = 0.0700 M Volume of NaOH = 65.5 mL = 0.0655 L

Q: A student mixed 100.00 mL of Ba(OH):(aq) (unknown molarity) with 500.00 mL of 0.0200 M NaOH(aq) in a…

A: Given that a student mixed 100.00 mL of BaOH2 with 500.00 mL of 0.0200 M NaOH in a conical flask to…

Q: In an acid-base titration, the neutralization of 20.00 mL of a solution of KOH (potassium hydroxide)…

A:

Q: In the laboratory you dissolve 15.2 g of ammonium sulfate in a volumetric flask and add water to a…

A:

Q: Calcium nitrate  (Ca(NO3)2 ; MM =164.0878 g/mol)) dissolves in cold water to the extent of 266 g per…

A: Given: Calcium nitrate [Ca(NO3)2] dissolves in cold water to the extent of 266 g per 100 mL Ca(NO3)2…

Q: Many remote villages depend solely on wells to supply their drinking water. A ground water analyst…

A: we have to calculate volume of sample of well water

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: 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 of cobalt(II) chloride is analyzed, and the concentration of cobalt(II) ions is found to…

A: Given,  Concentration of cobalt(II) ions(Co2+) = 0.27 mol/L Concentration of Chloride ion (Cl^-1) =…

Q: In the laboratory, a student dilutes 26.7 mL of a 7.32 M hydrochloric acid solution to a total…

A: Initial Molarity, M1 = 7.32 M Initial volume, V1 = 26.7 mL Final Molarity, M2 = unknown Final…

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

A: The solution is as follows:

Q: 11.A sample of 10 g of potassium iodide is dissolved in a beaker. Then it is poured in a volumetric…

A: Given : A sample of 10 g of potassium iodide is dissolved in a beaker. Then it is poured in a…

Q: Following the procedure, a student recorded the initial volume of NaOH in his buret as 1.43 mL. He…

A: Titrimetric analysis involves the determination of the volume of a solution of known concentration.…

Q: In the laboratory, you dissolve 19.9 g of cobalt(II) chloride in a volumetric flask and add water to…

A: Given, amount of cobalt(II) chloride w = 19.9 g volume of solution V = 125 mL = 0.125 L we are asked…

Q: An intravenous electrolyte solution has a Na+ ion concentration of 154 mEq/L. A patient in the…

A: The concentration of Na+ is given as 154 mEq/L. It is required to calculate the number of…

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

A:

Q: A 12.5 mL portion of a base solution of an element from Group 2A is diluted to 500 mL, and the…

A: Initial volume of base solution (of elements group 2A ) = 12.5 ml  New Volume of base solution = 500…

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

A: The balanced equation for HCl reaction with NaOH is  HCl  + NaOH  -------- >  NaCl   +  H2O  from…

Q: A 36.0 mL sample of aqueous sulfuric acid was titrated with 0.250 M ROH(aq) until the acid-base…

A: Molarity equation The equation that is used to calculate the concentration of acid or base in a…

Q: In the laboratory, a student dilutes 12.8 mL of a 9.35 M perchloric acid solution to a total volume…

A: In the dilution process, the relationship between initial and final concentrations and volumes of…

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

A: Given, mass of KHP=3.001 g Volume of NaOH=35.21 mL

Q: An analytical chemist weighs out 0.125 g of an unknown diprotic acid into a 250 mL volumetric flask…

A:

Q: In a titration, 23.25 mL of 0.105 M LiOH was needed to reaction with 21.45 mL of HCl solution. What…

A: Given: Titration of LiOH with HCl Volume of LiOH = 23.25 mL Concentration of LiOH = 0.105 M Volume…

Q: The fish canning industry has a waste effluent with the specification as follows: BOD5 = 150 mg/L,…

A: High levels of BOD and COD can be treated with the help of ozone. Ozone is an oxidant and is soluble…

Q: The following chemical reaction takes place in aqueous solution: ZNSO,(aq)+2 KOH(aq)…

A: Balanced molecular equation is given by,

Q: A 36.0 mL sample of aqueous sulfuric acid was titrated with O.250 M KOH(aq) until the acid-base…

A: The volume of sulfuric acid = 36.0 mL The molarity of KOH = 0.250 M The mass of residue formed after…

Q: An analytical chemist weighs out 0.118 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: The solubility of aluminum sulfate (Al2(SO4)3) in water is 34.22 g per 100.0 mL of solution at a…

A:

Q: (a) A student carries out a titration to find the concentration of some sulfuric acid. The student…

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

Q: What mass (in grams) of AgNO3 is required to precipitate all of the chloride ion, As AgCl, from 135…

A:

Q: An analytical chemist weighs out 0.181 g of an unknown diprotic acid into a 250 mL volumetric flask…

A:

Q: What is the concentration of sodium ions in a solution obtained by mixing 300. mL of 0.310 M sodium…

A:

Q: . A concentrated perchloric acid solution is 65.8% HClO4 by mass and its density is 1.68 g mL−1.…

A: 65.8 g HClO4 in 100 g solution. Density = mass/volume  Volume of solution = 100/1.68 = 59.52 ml…

Q: The following chemical reaction takes place in aqueous solution: 2 FeBr,(aq)+3 (NH,) S(aq)…

A: Balanced equation means number of atom in reactant side is equal to number of atom in product side.

Q: Acetic Acid reacts with sodium hydroxide in the following fashion: CH_3COOH(aq)+NaOH(aq) >…

A:

Q: If 1.5 g of potassium dichromate (K2Cr2O7) is used to prepare a standard solution in a 250 mL…

A: Solution:    Molarity is the measure of the concentration of species.The amount of solute present…

Q: You

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

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

A: In the titration process, the relationship between concentrations and volumes of solutions are given…

Q: A 36.0 mL sample of aqueous sulfuric acid was titrated with 0.250 M KOH(aq) until the acid-base…

A:

Q: The following chemical reaction takes place in aqueous solution: Zn (NO3), (aq)+2KOH(aq) →…

A: Balance Chemical equation means number of atoms or ions should be equal in both side (reactant and…

Q: How many grams of HCl(s) are there in 300 mL of 4.50% w/v HCl(aq) solution?

A: Weight/Volume (w/v) percentage is a measurement of the concentration of a solution. This…

Q: A neutralization reaction occurs when phosphoric acid reacts with sodium hydroxide solution.…

A:

Q: An aqueous solution of nickel(II) bromide, NiBr2, is made by dissolving 11.2 grams of nickel(II)…

A: Given-> Weight of nickel(2)bromide = 11.2 gm Volume = 250 ml

Q: A chemistry student weighs out 0.0960 g of phosphoric acid (H,PO4), a triprotic acid, into a 250. mL…

A: Given: Mass of H3PO4  = 0.0960 g Volume of H3PO4 solution = 250.0 mL = 0.250 L Molar mass of H3PO4 =…

Q: If 426 mL of 0.204 M HCI solution is needed to neutraize a solution of Ca(OH)2. how many grams of…

A:

Q: An analytical chemist weighs out 0.264 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given data is as follows: The mass unknown diprotic acid = 0.264 g    The volume of water = 250 mL =…

Q: The following chemical reaction takes place in aqueous solution: MgCl,(aq)+2 KOH(aq)…

A: We have to predict the net ionic equation.

Q: A sample of 18.5 grams of sodium phosphate is weighed out on a balance and prepared to a volume of…

A: