When a sample of oxalic acid (H2C2O4), which is a diprotic acid (both H-atoms are acidic), is titrated with 0.250 M potassium hydroxide solution, 24.09 mL of the potassium hydroxide solution are required to neutralize the acid.  How many grams of oxalic acid where present in the sample? 2 KOH(aq)  +  H2C2O4(s)  →  K2C2O4(aq)  +  2 H2O(l) Your answer should have 3 significant figures. Answer:

Q: Vinegar contains acetic acid (HC2H3O2), which is responsible for its acidity. In one analysis of a…

A:

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A: Given: Mass of stibnite= 9.53g Concentration of KBrO3=0.125M Volume of KBrO3=43.3 mL

Q: A student prepares a dilute solution of sodium hydroxide, NaOH (aq), starting with 6 M sodium…

A: The information given as concentration of NaOH is 6M. Mass of KHP=1.372g Volume of NaOH is 21.84…

Q: The molarity of an aqueous solution of hydrochloric acid, HCl, is determined by titration with a…

A: The neutralisation reaction is given as  2 HCl + Ba(OH)2 ------> BaCl2 + 2 H2O  Hence from the…

Q: The molarity of an aqueous solution of hydroiodic acid, HI, is determined by titration with a 0.118…

A: The given reaction is: The molarity of HI can be calculated as follows: where MHI is the molarity…

Q: A titration analysis of a 345.0 mL aqueous HBr solution was performed and the endpoint was reached…

A: When Hydrogen bromide solution is titrated with potassium hydroxide, the following reaction takes…

Q: What is the molar concentration of sodium ion in a 200.0 mL solution prepared from 1.223 g of sodium…

A: Since in the molecule Na3PO4 we have 3 Na+ ions  Hence moles of Na+ ions in solution = moles of…

Q: How do I solve this 3 part question?

A: Mass of KHP = 1.372 g Volume of NaOH = 21.84 ml Density = 1.01 gml

Q: Calculate the molarity of an acetic acid solution, HC2H3O2(aq), if a 50.0 mL sample requires 45.6 mL…

A: molarity is concerned with the moles of a solute in relation to the volume of a solution.…

Q: A 14.5 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid.…

A:

Q: The following chemical reaction takes place in aqueous solution: CuBr, (aq)+2 NAOH(aq) → Cu…

A:

Q: In a titration of Ba(OH)2(aq) against an unknown triprotic acid, H3A(aq), 20.00 mL of 0.0900 M…

A: a) The neutralisation reaction taking place is  3 Ba(OH)2 + 2 H3A -------> Ba3A2 + 6 H2O  hence…

Q: How many litres of 0.500 M HCl(aq) are needed to react completely with 0.100 mol of Pb(NO3)2(aq),…

A: The balanced equation for the reaction between lead nitrate and HCl is shown below:

Q: During a titration, it is found that 53.5 mL of a solution of NaOH is needed to neutralize 1.86 g of…

A: The molar mass of hydrochloric acid is 36.5 g/mol.

Q: If 19.5 g of NaOH is added to 0.800 L of 1.00 M Zn(NO₃)₂, how many grams of Zn(OH)₂ will be formed…

A: Given, Mass of NaOH = 19.5 g            Molarity of Zn(NO₃)₂ = 1.00 M            Volume of Zn(NO₃)₂…

Q: The active agent in many hair bleaches is hydrogen peroxide. The amount of H,O, in 14.6-g of hair…

A: Given: Volume of KMnO4 = 46.1mL=0.0461L Concentration of KMnO4 is 0.154 M the mass of bleach is…

Q: The end point in a titration of a 50.00-mL sample of aqueous HCl was reached by addition of 35.23 mL…

A: Given reaction:  HCl(aq) + NaOH(aq) ⟶ NaCl(aq) + H2 O(l)

Q: Lactic acid (HC3H5O3) is a monoprotic acid that forms when milk becomes sour. A 40.00 mL sample of…

A:

Q: What is the net ionic equation for the chemical reaction that occurs when aqueous solutions of…

A:

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

A:

Q: If 30.0 g of NaOH is added to 0.800 L of 1.00 M Zn(NO,)2, how many grams of Zn(OH)2 will be formed…

A: Given :  30 g of NaOH 0.8 L of 1.0 M Zn(NO3)2 To Determine: Amount of Zn(OH)2 formed in the reaction…

Q: The concentration of lead ions (Pb2+) in a sample of polluted water that also contains nitrate ions…

A: The balanced reaction of lead ions with sodium sulfate can be given as

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: What is the molarity of a solution of HCl if 5.50 mL of the HCl solution is titrated with 30.6 mL of…

A: Since as per the reaction, the moles of HCl reacting = moles of NaOH taken  because 1 mole of HCl is…

Q: The following chemical reaction takes place in aqueous solution: 2 AgNO3(aq)+Na,S(aq)…

A: To write the net ionic equation the following steps are involved 1. Write the balanced equation 2.…

Q: A 0.450 g sample of impure CACO,(s) is dissolved in 50.0 mL of 0.150 M HCI(aq). The equation for the…

A:

Q: Suppose you have a solution that might contain one or more of the following cations: lead (II) ion,…

A: All the chloride salts are soluble except Lead(II)chloride, silver(I)chloride, and HgCl2. All the…

Q: The following chemical reaction takes place in aqueous solution: MnCl,(aq)+2 KOH(aq) →Mn(OH),(s)+2…

A: The given molecular equation is : MnCl2 (aq) + 2KOH (aq) --------> Mn(OH)2 (s) + 2KCl (aq)

Q: 1. When H2SO4(aq) was reacted with NaOH(aq) in the titration, why was a precipitate not formed? 2.…

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

Q: A student prepares a dilute solution of sodium hydroxide, NaOH (aq), starting with 6 M sodium…

A: A) Given : Volume of diluted NaOH solution required = 21.84 mL = 0.02184 L…

Q: 20.00-mL portion of the diluted acid is titrated with 0.2025 MNaOH solution. If 42.00 mL of the NaOH…

A: Such kinds of problems are solved by considering the mole concept. The mole concept relates the…

Q: To determine the concentration of SO42– ion in a sample of groundwater, 100.0 mL of the sample is…

A: The reaction of Ba(NO3)2 with SO42- is,

Q: Vinegar contains acetic acid (HC2H3O2), which is responsible for its acidity. In one analysis of a…

A:

Q: 3 During the titration, after a volume of 15 mL of 0.100 M KOH(aq) has been added, which species,…

A: HNO2 (aq) + OH- (aq) →NO2- (aq) + H2O Concentration of KOH = 0.100 M Volume of HNO2 = 1.00 mL…

Q: 5. a. A student prepares a dilute solution of sodium hydroxide, NaOH(aq), starting with 6 M so- dium…

A: a.) It is given that a diluted solution of NaOH was used for titration. So to find molar…

Q: If 32.5 g of NaOH is added to 0.550 L of 1.00 M Ni(NO₃)₂, how many grams of Ni(OH)₂ will be formed…

A: The reaction considered is, 2 NaOH(aq)+Ni(NO3)2(aq)→Ni(OH)2 (s)+ 2 NaNO3(aq)

Q: 1. What are the spectator ions and the net ionic equation in the reaction between Mg(OH)2 (aq) and…

A: The spectator ions are one which do not undergo any chemical change in the reaction, they remain the…

Q: Assume that the red spheres in the buret represent H3O+ ions, the blue spheres in the flask…

A: Applying formula M1V1= M2V2

Q: Suppose you had titrated with barium hydroxide instead of sodium hydroxide:  What volume (in mL) of…

A: Data given Volume of Ba(OH)2(V1) = ? Molarity of Ba (OH)2 (M1) =0.586M Volume of sample vinegar (V2)…

Q: The quantity of antimony in a sample can be determined by an oxidation–reduction titration with an…

A: Given data: Mass of stibnite sample = 7.79 g, Concentration of KBrO3 solution = 0.120 M, Volume of…

Q: Ca(OH)2 +   HCl ->  CaCl2 +  H2O

A:

Q: The substance methylamine is a weak base like ammonia. Write an equation for the reaction that takes…

A:

Q: What kind of reaction is this if it is. Precipitate write down the formula if you said acid-base…

A: Oxidation is defined as process of addition of oxygen or an electronegative element to the…

Q: 2. The end point in a titration of a 50.00 mL sample of HCl solution was reached by the addition of…

A: Given data: The volume of HCl sample VHCl=50.00 mL. The volume of NaOH VNaOH=35.23 mL. The molarity…

Q: A 0.450 g sample of impure CaCO, (s) is dissolved in 50.0 mL of 0.150 M HC1(aq). The equation for…

A:

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: Which is the total (complete) ionic equation for the reaction of HCl (aq) with Cr(OH)3 (s)?

A: The reactants given are 1) HCl (aq) acid 2) Cr(OH)3 (s) base Hence acid and base will react to form…

Q: A student worker in the Cal Poly chemistry stockroom is asked to determine the concentration of an…

A: Acid-base titrations are carried out in order to determine the concentrations of the unknown…

Q: The strength of the eggshell of birds is determined by the calcium carbonate content of the…

A:

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for