PRE-LABORATORY QUESTIONS Gven the following two reactants, predict the products of the two reactions. write a balanced equation for each one. Both reactions are acid-base neutralization reactions. aj hydrochloric acid + sodium hydroxide ? +? bsulphuric acid + potassium hydroxide ? + ? 2. How many grams of KHP, KHC8H4O4, are needed to react with 38.56 mL of a 0.2500 M sodium hydroxide solution? 3. How many millilitres of a 0.500 M sodium hydroxide solution are necessary to react with 0.250 grams of KHP? 4. 0.150 grams of KHP was titrated with sodium hydroxide. If 29.98 mL of sodium hydroxide was used to reach the end point, what is the molarity, M, of the sodium hydroxide solution? 169

Q: If 35.8 mL of 0.100 M NaOH is needed to fully react with a 100.0 mL sample of oxalic acid (H2C2O4),…

A: Given data : Molarity of NaOH = 0.100 M Volume = 35.8 mL = 0.0358 L Number of moles of…

Q: Sodium carbonate (MM = 105.988 g/mol) is a primary standard base that reacts with hydrochloric acid.…

A: Since you have posted multiple type question so I have answered first one for you if you want to be…

Q: Standardized NaOH (M) 0.4102 Initial volume of buret (mL) 0.90 Volume of vinegar (mL) 10.00…

A: The balanced equation for the reaction between acetic acid and NaOH is  CH3COOH + NaOH…

Q: A 0.392 g sample of a monoprotic acid is dissolved in water and titrated with 0.120 M KOH. What is…

A: We have to calculate the molar mass of acid.

Q: An analyst is given 215 mL of a 0.781mol/L calcium perchlorate. How many mL of a 0.60O0M ammonium…

A:

Q: A 1.034-g sample of impure oxalic acid is dissolved in water and an acid-base indicator added. The…

A: Given: Mass of sample     = 1.034 g Volume of NaOH  = 34.47 mL Molarity of NaOH = 0.485 M

Q: A student adds a small amount of phenolphthalein to an erlenmeyer flask, and it changes to pink when…

A: Phenolphthalein is colourless in acidic solution while it turns pink in a basic solution

Q: Acetic acid is a weak acid.  Its formula is CH3COOH.  Only the last H is an acid proton.  Vinegar is…

A: Recall the reaction between acetic acid and NaOH        CH3COOH + NaOH → CH3COONa + H2OAccording to…

Q: Express the volume in milliliters to three significant digits.   (1.) How many milliliters of 0.120M…

A: Note : As per our guidelines , we are supposed to answer first question please repost the other…

Q: A student mixes four reagents together, thinking that the solutions will neutralize each other. The…

A:

Q: During a titration the following data were collected. A 50.0 mL portion of an HCl solution was…

A: HCl is strong acid and NaOH is strong base . In the titration reaction of HCl with NaOH , one mole…

Q: The diprotic acid lactic acid is produced as a result of anaerobic respiration. Raquel titrates the…

A:

Q: Phosphoric acid (H3PO4) is a triprotic acid with three ionizable protons. Write a balance equation…

A: We have to predict the volume of NaOH required.

Q: Dihydrogen dioxide is used as a cleaning agent in the treatment of cuts and abrasions.  In the lab,…

A:

Q: Given a balanced chemical equation between H2SO4(aq) and KOH(aq) H2SO4(aq)+ 2 KOH(aq) —> K2SO4(aq) +…

A: The balanced equation is  H2SO4(aq)+ 2 KOH(aq) —> K2SO4(aq) + 2 H2O(l) Given that Molarity of KOH…

Q: When 12.5 mL of 0.20 M Cu(NO3)2 solution and 37.5 mL of 0.64 M Al(NO3)3 solution are mixed, what is…

A: Given 12.5 mL of 0.20 M Cu(NO3)2 solution and 37.5 mL of 0.64 M Al(NO3)3 solution are mixed,  We…

Q: Use the References to access important values if needed for this question. The molarity of an…

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Q: Potassium acid phthalate, KHC8H4O4, or KHP, is used in many laboratories, including general…

A:

Q: Will all the lead be removed from 13.6 mL of 6.40×10-3 M Pb(NO3)2 upon addition of 14.1 mL of 0.0119…

A:

Q: 3.* A 0.1936 g sample of an unknown monoprotic acid requires 15.56 mL of 0.1020 M NAOH solution to…

A:

Q: The balanced equation for the neutralization reaction of aqueous H2SO4H2SO4 with aqueous KOHKOH is…

A: From the given reaction, it is clear that one mol of sulphuric acid react with two mol of potassium…

Q: If 25.00 mL of 0.5348 M HNO3 is added to an antacid tablet and the excess HNO3 requires 38.34 mL of…

A: Given : Concentration of NaOH used = 0.1027 M Volume of NaOH solution required to neutralise excess…

Q: 10.00 mL of 5.07 M H2SO4 is pipetted into an Erlenmeyer flask in preparation for a titration. How…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: 3. Lulu Labwrecker carefully pipets 25.0 mL of 0.525 M NAOH into a test tube. She places the test…

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

Q: A 0.1057 N HCI solution was used to titrate a sample containing Ba(OH)2. If 35.78 mL of HCI was…

A: When Normality of Titrate is involved, the  percentage of analyte is calculated by using formula   %…

Q: How many mL of 815 M KI solution are required to react with 50.0 mL of  0.259 M Pb(NO3)2 solution to…

A: Balanced chemical equation: Pb(NO3)2 (aq)   +   2KI (aq)     ------>    PbI2 (s)   +   2KNO3(aq)…

Q: during a titration, 120.0 ml of 0.197 M aqueous sulfuric acid was required to exactly neutralize…

A:

Q: Ascorbic acid (Vitamin C, H2C6H6O6) is a diprotic acid.  In a laboratory exercise, a vitamin C…

A: The balanced chemical equation of the ascorbic acid is - 1) calculate the moles of the base NaOH -…

Q: Calculate the volume (in mL) of 2.25 M HNO 3 solution required to react with 24.2 mL of 3.50 M NaOH…

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Q: The balanced equation for the neutralization reaction of aqueous H2SO4H2SO4 with aqueous KOHKOH is…

A: Given,0.380 M KOH20.0 ml of 0.110 M sulfuric acid

Q: How many mL of 815 M KI solution are required to react with 50.0 mL of  0.259 M Pb(NO3)2 solution to…

A: Molarity of KI = 815 M Volume of Pb(NO3)2 = 50 mL or 0.050 L Molarity of Pb(NO3)2 = 0.259 M Moles of…

Q: Part 1) a) A student is standardizing the permanganate solution and uses 1.50x10-3 moles of sodium…

A:

Q: The titration of 0.314 g of potassium hydrogen phthalate (KHP) requires 13.16 mL of a NaOH solution.…

A: we need to calculate moles of NaOH for the titration of 0.314 g of KHP

Q: Consider the following acid base titration between H2C3H5O3(aq) with KOH(aq).  Write a complete…

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

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: The distinctive odor of vinegar is due to acetic acid, CH3COOH,which reacts with sodium hydroxide…

A: Calculate the total number of moles of NaOH.

Q: Adic acid (H2C6H8O4) is an important carboxylic acid compound for the industry in which nylon is…

A: The answer to both the questions can be given as:

Q: What is the mass-volume percent of acetic acid (CH3COOH) in a vinegar sample if 5.00 mL of the…

A: Given that -  Volume of vinegar = 5.00 mL  Molarity of NaOH = 0.1150 M  Volume of NaOH = 30.50 mL…

Q: How many mL of 0.815 M KI solution are required to react with 50.0 mL of .259 M Pb(NO3)2 solution to…

A:

Q: What is the mass of the precipitate formed when 12.0 mL of 0.150 M NaCl is added to 25.00 mL of a…

A: We know that silver chloride is a weak salt its solubility product is very low. Therefore, we can…

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: Consider the following reaction: Pb(NO3)2 (aq) + 2NACI (aq)--> PbCl2 (s) + 2NaNO3 (aq) How many mL…

A: Given reaction is  Pb(NO3)2 + 2NaCl ——> PbCl2 + 2NaNO3 V mL of 0.822 M Pb(NO3)2  35.3 mL of 0.745…

Q: + 2NaOH > Cu(OH)2

A: Reaction

Q: The active ingredient in aspirin is acetylsalicylic acid. A 2.19 g sample of acetylsalicylic acid…

A: The number of moles of acetylic salicylic acid and sodium hydroxide reacted are equal because…

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

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Q: What is the chemical equation representing the titration reaction?

A: A) As here , acid is HCl and base is NaOH , and both are strong in nature , so the reaction they…

Q: If 0.468 L of water is added to a 59.1 mL of 17.2 M stock solution of acetic acid (CH 3COOH), what…

A: Solution - Formula used:  M1V1= M2V2 (1L= 1000mL) Total volume= 468mL + 59.1= 527.1mL= V2

Q: A student is required to prepare 0.15M HCl solution needed for an analysis and the only available…

A:

Q: The balanced equation for the neutralization reaction of aqueous H2SO4 with aqueous KOH is shown.…

A: Volume of KOH is calculated as follows

Q: What is the concentration of a solution of silver nitrate needed to just react completely with 0.350…

A: Weight of NaCl = 0.350 gm Volume of AgNO3 = 47.5 ml = 0.0475 L (1 L = 1000 ml)

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.