A student is given an antacid tablet that weighs 5.9320 g. The tablet is crushed and 4.9780 g of the antacid is added to 200. mL of simulated stomach acid. It is allowed to react and then filtered. It is found that 25.00 mL of this partially neutralized stomach acid required 13.5 mL of a NaOH solution to titrate it to a methyl red end point. It takes 29.0 mL of this NaOH solution to neutralize 25.00 mL of the original stomach acid. How much of the stomach acid (in mL) has been neutralized in the 25.00 mL sample that was titrated?

Q: A mysterious white powder is found at a crime scene. A simple chemical analysis concludes that the…

A: Since it is reaching equivalence point means that all the weak base (morphine ) has reacted with the…

Q: The amount of ascorbic acid (vitamin C, C&HgO6) in tablets is determined by reaction with bromine…

A: The equations are given as, C6H8O6 + Br2 →C6H6O6 + 2 HBrHBr + NaOH →NaBr + H2O

Q: What mass of Ge(OH)4 could be neutralized by 70.00 ml of 0.2468 M H2SO4(aq) solution?

A: Amount of  H2SO4  = 70.0 ml × 0.2468 M            = 0.070 L × 0.2468 mol/L Where 1 ml solution =…

Q: An aspirin sample, 0.62 grams, was titrated with 28 mL of 0.105 M NaOH solution. What is the percent…

A: The Question is Based on experimental Chemistry . We have to calculate percentage purity of the…

Q: A solution of sodium hydroxide is standardized against potassium hydrogen phthalate (molecular mass…

A: Chemical reaction between sodium hydroxide and KHP as follows:

Q: It takes 91 mm² of overall surface area, in the form of a calcium-based substrate sheet, (CACO3…

A: Solution: Data Given- 91 mm² of overall surface area, (CaCO3 density=2.7 g/cm³)

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A: The point where equivalent quantities are brought together is called equivalence point. The reaction…

Q: A 50.0 mL sample of potassium hydroxide is transferred to an Erlenmeyer flask and then titrated with…

A:

Q: if 44.97 ml of an HCl solution is equivalent to 43.76 ml solution of  NaOH,   and if 49.14 ml of the…

A: Given: Volume of HCl= 44.97 ml Volume of NaOH= 43.76 ml  49.14 ml of the NaOH will neutralize…

Q: If 44.97 ml of a solution of HCl are equivalent to 43.76 ml solution of NaOH, and if 49.14 ml of the…

A:

Q: The amount of ascorbic acid (vitamin C; C6H8O6) in tablets is determined by reaction with bromine…

A: A titration is known as titrimetry and volumetric analysis. A titration is a process in which a…

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

A: Molarity of KOH=2.815 M Volume of KOH=191.05 mL =191.05/1000 =0.19105 L  [1 L = 1000 mL] Volume of…

Q: Suppose a group of students put 2.92 grams of an unknown solid acid into a 250-mL Erlenmeyer flask…

A: Given: mass of acid = 2.92 g Volume of acid solution prepared = 250 mL = 0.250 L…

Q: A 0.750 g sample of finely ground limestone was placed in an Erlenmeyer flask, and 25.00 mL of 1.00…

A: Mass of sample = 0.750 grams Volume of HCl added = 25.0 mL Concentration of HCl added = 1M Volume of…

Q: A volumetric pipette was used to transfer 18.00 mL of 1.150 M HCI solution into a 125 mL flask. Four…

A: The balanced chemical equation between NaOH and HCl is given by        HCl(aq)    + NaOH(aq)…

Q: 19- A sample of limestone is titrated for its value as a neutralizing agent. A sample weighing 1.000…

A: Limestone is CaCO3 Moles of CaCO3 = 1 / 100 = 0.01

Q: The calcium in a 200 ml sample of water was determined by precipitating the cation as CaC204. The…

A: Given: Volume of sample of calcium = 200 mL Mass of empty crucible = 26.6002 g And mass of crucible…

Q: Calcium carbonate tablets can be used as an antacid. The label on a bottle of a generic antacid…

A: Given: mass of each tablet=500mg Molarity of HCl=0.6M

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

A:

Q: The density of acetic acid is 1.05 g/ml. * 10 ml of commercial vinegar was taken during titration…

A: Given: The density of acetic acid = 1.05 g/ml The volume of commercial vinegar taken = 10 ml The…

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: Solid iron(III) hydroxide is added to 635 mL of 0.280 M HCl. The resulting solution is acidic and…

A: Given data,Molarity of HCl=0.280MVolume of HCl=635mLVolume of NaOH=1294mLMolarity of NaOH=0.111M

Q: In order to calculate the volume of an irregularly shaped container, a chemist added 108.2 g of NaCl…

A: First of all, you need to find the molarity of NaCl solution present in the container. Once you get…

Q: The solubility of magnesium hydroxide, Mg(OH)2, in water is 9.0 × 10–4 g/100 mL. What volume of…

A:

Q: Consider 0.350 g of an antacid tablet.  Suppose 41.36 mL of 0.1246 M HCl is added to the crushed…

A: Millimoles= concentration *volume (in ml) Millimoles of NaOH = 0.1172*12.78               =1.4978…

Q: A student analyzed an antacid tablet from a bottle of 50 tables purchased at a discount store for…

A:

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: 1.3562 g of table salt was taken and dissolved in 250 mL of water. Calculate the % chloride amount…

A: The balanced equation for the reaction between NaCl and AgNO3 is   NaCl (aq) + AgNO3 (aq)…

Q: What volume of 1.25 M Hydrochloric acid is required to neutralize 37.5 ml of 0.55 M Potassium…

A:

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: An aspirin sample, 0.62 grams, was titrated with 28 mL of 0.105 M NaOH solution. What is the percent…

A: 1 mol of NaOH react with 1 mol of aspirin. Given amount of aspirin = 0.62 g (Theoretical amount)  28…

Q: A permanganate solution is prepared by dissolving 20.0123 g KMNO4 in 500 mL of distilled water and…

A:

Q: 1. Students were responsible for conducting 3 trials of titration of 10 mL samples of phosphoric…

A:

Q: A student performs a titration by filling the titrator with 0.75 M NaOH, and filling a beaker with…

A: Given data: Concentration of NaOH solution: 0.75 M, Volume of NaOH solution: 4.5 mL = 0.0045 L,…

Q: What volume of 0.0208 M calcium hydroxide is required to neutralize 74.50 mL of 0.0104 M nitric…

A:

Q: A useful application of oxalic acid is the removal of rust, Fe2O3.   Fe2O3(s)  +   6 H2C2O4(aq)  →…

A: The balanced chemical equation given is, Fe2O3 (s)  +  6 H2C2O4 (aq)  →  2 Fe(C2O4)3 (aq)  +  3 H2O…

Q: A 500-ml volumetric flask contains 150 ml of 0.200 N H2SO4. By adding a more concentrated H2SO,the…

A: 1.A. Given: C1= 0.200 N V1= 150 mL Details for initial sulphuric acid in volumetric flask C2= ? N…

Q: The following chemical reaction takes place in aqueous solution: 2 FeBr3(aq)+3 Na, S(aq)…

A: Net ionic reaction - Those reactions in which spectators ions are not included, only those species…

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.299 M HCl. All the CaCO3…

A: Number of mmols = molarity x volume (mL) Chemical equation for the reaction of HCl and CaCO3 can be…

Q: The maximum permissible amount of cadmium (M=112 g/n) in drinking water is 0.01 mg/L. What is the…

A: Given that : The maximum permissible amount of cadmium in drinking water is 0.01 mg/L. We have to…

Q: To increase the acidity of soil, you can add peat, which contains a complex acid mixture known as…

A: The titration for acid-base mainly works in analyzing the unknown potential of an alkali/acid. This…

Q: The mass percent of chloride ion in a 25.00 mL sample of seawater was determined by titrating the…

A: 25. The balanced chemical equation  is  AgNO3 (aq) + Cl- (aq) → AgCl (aq) + NO3- (aq)

Q: Suppose a group of students put 2.92 grams of an unknown solid acid into a 250-mL Erlenmeyer flask…

A: Given: Concentration of NaOH solution = 0.18 M

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A:

Q: A permanganate solution is prepared by dissolving 20.0123 g KMNO4 in 500 mL of distilled water and…

A: Given: The reaction is as follows, 5H2C2O4+2MnO4-+6H+⇌10CO2+2Mn2++8H2O Molarity of oxalic acid =…

Q: A sample of KHP, KHC8H.O4, weighing 2.035 g is titrated with NAOH and backtitrated with HCI. NaOH…

A: Given: Mass of sample of KHP =2.035 g Volume of NaOH required =23.20 mL Volume of HCl required…

Q: A sample of KHP, KHC8H&O4, weighing 2.035 g is titrated with NaOH and backtitrated with HCI. NaOH…

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

Q: The lead(II)ion can be effectively removed from solution via the addition of phosphate ions. The…

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Q: To determine the mass of calcium carbonate present in a 0.125 g sample of chalk, the chalk sample…

A: Acid-base titrations can be used to find the concentration of unknown acid/base by titrating it…

Q: If you used no antacid tablet in your titration, you would be titrating 25.00 mL of 0.500 M HCl with…

A: For neutralize mole of acid = mole of base

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.