A 4.500-g sample containing sodium carbonate (105.99 g/mol) and other impurities is titrated with 0.15 M HCl solution. The initial buret reading is 2.34 mL. The final buret reading is 37.85 mL when the titration reaches the end point. Assuming sodium carbonate is the only component in the sample that reacts with HCl, what is the percent by mass of sodium carbonate in the sample? Na2CO3 + 2HCl --> 2NaCl + H2O + CO2

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: A 12.4 g sample of an aqueous solution of nitric acid contains an unknown amount of the acid. If…

A:

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: Fill in the blanks: An environmental chemist analyzed the effluent from an industrial process known…

A: Since the benzoic acid has only 1 acidic H  Hence moles of NaOH required for complete neutralisation…

Q: Imagine you transferred 5.00 mL of 1.75 M HCl solution into an empty 200.00 mL volumetric flask then…

A: Given is Initial Volume of HCl solution = V1 = 5 mL Molarity of HCl solution = M1 = 1.75 M Final…

Q: It takes 24.05 mL of 0.952 M NaOH to titrate a 15.00 mL sample of white vinegar (i.e. HC2H3O2).…

A: Given data: Molarity of NaOH = 0.952 M Volume of NaOH = 24.05 mL Volume of vinegar = 15.00 mL…

Q: Consider the reaction when aqueous solutions of magnesium sulfate and lead(II) nitrate are combined.…

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Q: A barium hydroxide solution is prepared by dissolving 2.91 g of Ba(OH), in water to make 42.3 mL of…

A:

Q: 7.65 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If…

A: Weight of sample=7.65g Volume=24.1mL  Concentration of barium hydraxide=0.550M

Q: A 5.00-g sample of vinegar is titrated with 0.108 M NaOH. If the vinegar requires 39.1 mL of the…

A: Given: The mass of the vinegar=5.00 g The concentration of NaOH=0.108 M The volume of NaOH=39.1m…

Q: A student titrates an unknown amount of potassium hydrogen phthalate (KNC8H4O4, often abbreviated…

A:

Q: what mass in grams of Zn(OH)₂ will be formed

A: Number of moles = mass/molar mass  Molarity = moles/volume(in L)  Moles = molarity × volume(in L)…

Q: If 30.0 g of NaOH is added to 0.800 L of 1.00 M Zn(NO₃)₂, what mass in grams of Zn(OH)₂ will be…

A: The mass of NaOH (sodium hydroxide) = 30.0 g The volume of Zn(NO3)2 (zinc nitrate) = 0.800 L The…

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: In the laboratory, a student adds 45.1 mL of water to 10.6 mL of a 0.773 M hydrobromic acid…

A: Given : Initial concentration of hydrobromic acid i.e HBr = 0.773 M Initial volume of HBr solution =…

Q: ation experiment, a 5.00-mL sample of sulfuric acid, H2SO4, from a car battery is diluted with…

A: In inorganic laboratories, titrations are carried out to calculate the unknown concentrations of the…

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: Calculate solution concentration in molarity units. A student weighs out 6.49 g of FeSO4, transfers…

A:

Q: if 30.0 g of NaOH is added to  0.800L of 1.00M Zn(NO3)2, what is the mass in grams of Zn(OH)2 will…

A: The balanced equation for the given precipitation reaction is as follows.…

Q: A barium hydroxide solution is prepared by dissolving 1.76 g of Ba(OH), in water to make 57.7 mL of…

A: 1) given mass of Ba(OH)2 = 1.76 g      Molar mass of Ba(OH)2 = 171.34 g/mol     Volume = 57.7 mL…

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

A:

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A: The chemical reaction that takes place between copper chloride and silver nitrate is shown below:…

Q: The

A: Molarity is defined as total number of solute present in 1000 ml of solution .   For neutralisation…

Q: A solution is prepared by adding 25.0 mL of 1.30 M AlCl3 solution to a flask, and then adding enough…

A:

Q: Suppose you took a 3.00 mL sample of HNO3 (aq) of an unknown concentration, and find that you have…

A: Given: Volume of HNO3 = 3.00 mL Volume of NaOH solution = 20.30 mL Molarity of NaOH solution = 0.106…

Q: Calcium metal will react with water as follows: __Ca(s) + __H2O  __Ca(OH)2(aq) + __H2(g) What is…

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Q: A barium hydroxide solution is prepared by dissolving 3.22 g of Ba(OH), in water to make 58.1I mL of…

A:

Q: In an oxidation reaction, Iron (II) iodide converted into Iron (III) oxide and iodine gas, What…

A: The given chemical reaction is: 4FeI2+3O2→2Fe2O3+4I2 According to the balanced chemical reaction, 4…

Q: A sample of 1.975 g oxalic acid dehydrate (H2C2O4 . 2H2O) was dissolved in enough water to make a…

A:

Q: A student requires 45.0 grams of solid silver chloride to precipitate.  What volume of a 0.50 M…

A: As here NaCl is used in excess amount the limiting reagent is AgNO3 from here we can calculate the…

Q: The molarity of an aqueous solution of potassium hydroxide, KOH, is determined by titration against…

A: Balanced chemical equation: HBr +  KOH  ---->  KBr  +  H2O Number of mmole of KOH = number of…

Q: A student is given the task of determining the concentration of a solution of hydrochloric acid.…

A: In the titration of Ba(OH)2 Vs HCl , the chemical equation can be written as  Ba(OH)2 + 2HCl =BaCl2…

Q: 1.Determine the molarity of a potassium hydroxide solution if it takes 38.2 mL of the solution to…

A: Three numerical problems based on mole concept, which is to be accomplished.

Q: Consider the balanced reaction below. FeCl3 (aq) + 3 NAOH (aq) --> Fe(OH)3 (s) + 3 NaCI (aq) A 0.532…

A: Given: Concentration of NaOH = 0.532 M Concentration of FeCl3 = 0.398 M Volume of of FeCl3 = 34.9 mL…

Q: Complete and balance the chemical equation associated with the neutralization of aqueous sodium…

A:

Q: A 8.92 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If…

A:

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: If the density of a 2.50 M HCl solution is 1.248 g/cm3, what mass of HCL solution is needed to react…

A: The reaction between HCl and Mg(OH)2 is given as:Mg(OH)2 + 2 HCl → MgCl2 + 2 H2OAccording to the…

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

A:

Q: student weighs out a 12.8 g sample of Ni(NO3)2, transfers it to a 300. mL volumetric flask, adds…

A: Molarity of a solution is defined as the number of moles of solute present in one liter of solvent.…

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

A: Apply M1V1 = M2V2

Q: A standard solution of 0.2436 M NaOH was used to determine the concentration of a hydrochloric acid…

A: The molarity equation derived using reaction's stoichiometry is helpful to find unknown…

Q: A 10.4 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If…

A:

Q: A 12.3 g sample of an aqueous solution of hydrochloric acid contains an unknown amount of the acid.…

A:

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

A: Acetic acid solution of unknown strength is titrated using sodium hydroxide solution. Recall the…

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: A student pipets 18 mL of a lithium sulfate solution into a 164 mL volumetric flask and dilutes to…

A: We have to calculate the concentration of the original solution.

Q: When potassium chloride, KCl, is added to a solution of lead nitrate, Pb(NO3)2, a bright yellow…

A: Using the moles concept to calculate the moles of kcl required.  Then to calculate volume.

Q: A barium hydroxide solution is prepared by dissolving 2.64 g of Ba(OH), in water to make 58.7 mL of…

A: Given 1) mass of Ba(OH)2 = 2.64 g Volume of Ba(OH)2 = 58.7 ml 3) Volume of Ba(OH)2 = 17.4 ml Volume…

Q: According to the label on a bottle of concentrated hydrochloric acid, the contents are 36.0% HCl by…

A: Let the mass of solution is 100 g Given  mass of HCl will be 36.0 g Number of moles of…

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.