Limestone consists mainly of the mineral calcite, CaCO 3. The carbonate content of 0.5413 g of powdered limestone was measured by suspending the powder in water, adding 10.00 mL of 1.396 M HCl, and heating to dissolve the solid and expel CO 2: CaCO 3(s) + 2 HCl → CaCl 2 + CO 2(g) + H 2O The excess acid required 39.96 mL of 0.1004 M NaOH for complete titration to a phenolphthalein end point. Find the weight percent of calcite in the limestone.

Q: Two 0.10 mol samples of the hypothetical monoprotic acids HA(aq) and HB(aq) are used to prepare 1.0L…

A: Given : Two hypothetical monoprotic acids i.e HA and HB. Moles of acid HA = moles of acid HB = 0.10…

Q: A solution of phosphoric acid (HsPO.) with a known concentration of 0.250 M H.PO, is itrated with a…

A: Acid-base reaction :  H3PO4  + 3 NaOH  -->  Na3PO4  + 3 H2O  At equivalents point  Ma Va / na…

Q: total acidity in water samples can be determined by neutralization with standard sodium hydroxide…

A:

Q: Ammonium chloride (NH4Cl) is very soluble in water, 383 g/L at room temperature, and has a standard…

A: Addition of HBr would lead to the formation of ammonium bromide. The concentration of ammonium ions…

Q: A lemon-flavored drink contains an unknown amount of citric acid, C5H8O7. What is the molar…

A: Given :-  C5H8O7 + 3NaOH --> Na3C5H5O7 + 3H2O  Volume of C5H8O7 solution = 100.0 mL  Molarity of…

Q: When a solution of ammonium sulfate is added to a solution of strontium nitrate, Sr(NO3)2, a white…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: A numerical problem based on quantitative analysis, which is to be accomplished.

Q: 4pts) 2.80g of a mixture of Barium Nitrate, Ba(NO3)2 (MM = 261.35 g/mol) and Potassium Bromide, KBr…

A: Here by gravimetric analysis, we have to determine the percentage of KBr in the mixture of Ba(NO3)2…

Q: 30.00 mL of nitric acid (HNO3) with an unknowne concentration was placed into an erlenmeyer fask,…

A: Acid base neutralization reaction involves formation of salt and water. Moles of base reacts with…

Q: 13.) Calculate the mass of solid MgSO̟•7H¸O that must be added to precipitate out all of the PO,3-…

A: The balanced equation for the dissociation of MgSO4.7H2O is: MgSO4.7H2O(s)   → Mg2+(aq) + SO42-(aq)…

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

A: Chloride or sulfate salts of different cations have different solubility in aqueous solution, Based…

Q: Which of the following methods in quantitative chemical analysis is determined by the measurement of…

A: Quantitative analysis refers to the determination of how much of a given component is present in a…

Q: Assume you titrated to the endpoint 0.10 moles of HA (weak, monoprotic acid) with a solution of…

A:

Q: How many moles of precipitate will be formed

A: Molarity = number of moles/volume of solution (in L)  Number of moles = molarity × volume (in L)

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: In a titration reaction 20.00mL of 0.500M KOH reacts completely with 12.55 mL of sulfuric acid, what…

A: Molecular reaction between KOH and H2SO4 . 2KOH(aq)+H2SO4(aq)→K2SO4(aq)+2H2O (l) From this reaction…

Q: 2 Fe(OH);(s) + 3 H,SO,(aq) → Fe,(SO,)3(aq) + 6 H,O(1) a) In the first trial, she attempted to…

A: To do the calculations , we would use dimensional analysis method . We would consider the mole ratio…

Q: I want to know the source of this question( The name of the book with the edition) QI/ The calcium…

A: The determination of the concentration of a substance/ion in a solution has great significance in…

Q: 2. Suppose a titration needed 27.15 mL of 0.2497M HCI solution to completely react 25.00mL Ba(OH)2…

A: The number of moles of a substance is determined as the mass of a substance upon its molar mass. The…

Q: If 28.0g 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 in…

A: we need to calculate the mass of Ni(OH)2 formed in the given reaction

Q: If 34.5 g of NaOH is added to 0.600 L of 1.00 M Mn(NO₃)₂, how many grams of Mn(OH)₂ will be formed…

A: We will use stoichiometry of the reaction to get the answer

Q: For the chemical reaction 2 HBr(aq)+Ba(OH),(aq) → 2 H,O(1) + BaBr, (aq) write the net ionic…

A:

Q: A solution of tartaric acid (H2C,H,O6) with a known concentration of 0.155 M H2C,H,O6 is titrated…

A: Given, H2C4H6O6+2NaOH→Na2C4H4O6+2H2OK. Concentration of tartaric acid = 0.155M Concentration of…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Given Mass of oxalic acid = 231 mg Volume of NaOH = 130.9 ml

Q: An impure sample of barium hydroxide of mass 1.6524g was allowed to react with 100mL of 0.200M…

A: Molar mass of Ba(OH)2= 171.34 g/mol Mass of impure sample of Ba(OH)2=1.6524g Volume of HCl=100ml…

Q: You have a solution of 1M BaCl2 and another of 1M Hg2(NO3)2. If you poured them together, what…

A: 1. In double displacement reaction,  cation of one species easily replaces cation of another species…

Q: The solubility product of a sparingly soluble salt, XF2, was determined by titration and found to be…

A: This means effective concentration of constituent ions in solution. Hence from it we can calculate…

Q: What volume of 0.250 M KCl(aq) will completely react with 50.0 mL of 0.115 M Pb(NO3)2 (aq)?

A: Given, [KCl]=0.250 M,  V1 = ? PbNO32 = 0.115 M, V2 = 50 mL.

Q: A sample of USP-grade citric acid (H3C6H5O7, three titratable protons) is analyzed by titrating with…

A: A question based on quantitative analysis, which is to be accomplished.

Q: To determine the amount of magnetite, Fe3O4, in an impure ore, a 1.5419-g sample is dissolved in…

A:

Q: Potassium sorbate,KC H.O, (molar mass 150. g/mol) is commonly added to diet soft drinks as a…

A: IMPORTANT POINTS: Potassium sorbate is formed from a weak acid and strong base , so it is a basic…

Q: A careless student forgets to label one of their reagent containers. They know it contains one of…

A: The given solution may be one of the following: 0.1 M NaCl0.1 M CaNO320.1 M KCH3COO

Q: A 25.00 mL sample of acetic acid (CH3COOH) is titrated to the equivalence using 31.08 mL of 0.1978 M…

A:

Q: What mass of Na2 CrO4 is required to precipitate all of the silver ions from 85.0 mL of a 0.300 M…

A: Given : molarity of AgNO3 solution = 0.300 M or 0.300 mol/L  Volume of AgNO3 solution = 85.0 mL  To…

Q: The distinctive odor of vinegar is due to acetic acid, HC2H3O2. Acetic acid reacts with sodium…

A:

Q: The solubility of magnesium flourish in water is 1.5*10-2 g/L. What is the solubility in grams per…

A:

Q: What mass of Na2CrO4  is required to precipitate all of the silver ions from 20.0 mL of a 0.700 M…

A: Given: Volume of AgNO3 = 20.0 mL = 0.02 L Concentration of AgNO3 = 0.700 M   Chemical reaction…

Q: What is the cobalt(II) ion concentration in a solution prepared by mixing 351 mL of 0.372 M…

A: The balanced equation for the reaction is   Co+2 (aq) + 2 OH– (aq) -----------> Co(OH)2 (s)…

Q: The solubility of an ionic compound in water can be expressed in terms of the mass that will…

A: From given data  Mass of Ca(OH)2 = 0.238 g  Volume of solution = 0.113 L  As it has been mentioned…

Q: A solution is prepared by pipetting 25.0 mL of 0.350 M CuCl2 into a 100.0 mL volumetric flask,…

A: Concentration in terms of molarity is defined as the moles of solute present per litre of the…

Q: Phosphoric acid, H3PO4, in a solution was neutralized by titration with a barium hydroxide,  Ba(OH)2…

A: molarity is defined as no of moles of solute devided by volume of solution in liter.

Q: A student places 20.00 mL of 0.1005 M HCl in a flask and adds a few drops of phenolphthalein. She…

A:

Q: Chlorine in wastewater could be digested, isolated and converted to HCl and could be titrated with…

A: Wate water contains many compounds which contaminate it. But these can be removed by many chemical…

Q: For the chemical reaction HCN(aq) + KОН(аq) Н,О) + KCN(aq) write the net ionic equation, including…

A: Interpretation-  To write the  including the phases , here given chemical reaction is -…

Q: What molarity of Ag+ ions is required for the formation of a precipitate in 1.0 × 10-5 M NaCl(aq)?

A: Since NaCl is a strong electrolyte. hence it will dissolve completely in solution as per the…

Q: If 34.5 g of NaOH is added to 0.650 L of 1.00 M Cu(NO:)2, how many grams of Cu(OH)2 will be formed…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Molarity of a solution =Number of moles of soluteVolume of solution in LNaOH + H2C2O4 →Na2C2O4 + 2…

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: If 24.0 g of NaOH is added to 0.650 L of 1.00 M Cu(NOs)2, how many grams of Cu(OH)2 will be formed…

A: Given: Mass of NaOH           = 24.0 g Volume of Cu(NO3)2  = 0.650 L Molarity of Cu(NO3)2 = 1.00 M…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.