POST-LAB QUESTIONS:1) Why are solutions standardized?2) Why was a back-titration needed for the antacid?3) What other indicators could have been used for the standardization of HCl and NaOH?4) What would be the consequence of competing equilibria, such as from other ingredients in the tablet, on your results? What if there were several pain relievers in the same tablet? How could the error from these interferences be minimized?5) Ethanol was used in the solutions to help dissolve the aspirin. Ethanol is slightly acidic and will react with NaOH. Describe a blank correction experiment, i.e., what experiment you might do to determine how much NaOH reacts with the ethanol in your solution. Once you have determined this, how would you use the results of a blank correction experiment in the data analysis?

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

Answered: 1) Why are solutions standardized?

Science

Chemistry

1) Why are solutions standardized?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: In a titration, it took 20.18 mL of 0.40 M NAOH to neutralize 10.00 mL of the HCI. What is the…

Q: A sample of vinegar is to be analyzed for its acetic acid content. A volume of 50.0 mL is measured…

A: The volume of 1000.0 mL is equal to 1.0 L. The number of moles of NaOH or OH- in the 31.66 mL of…

Q: What volume, in milliliters, of a 0.160 M solution of KCl contains 2.80 gof the compound? Express…

A: Given: Molarity= 0.160 M Mass of KCl given= 2.80 g To find: Volume in mL = ?

Q: (c) How many milliliters of 10.6 M HCl solution are needed to obtain 0.305 mol of HCI?

A: The objective of this question is to find out the volume of a 10.6 M HCl solution required to obtain…

Q: How many millimeters of 11.5 M HCI (aq) are needed to prepare 195.0 mL of 1.00 HCI (aq)? V= ? mL

A: ** Note :- Molarity of HCl is 1.00 M final volume of HCl= 195 mL final concentration of HCl = 1.00…

Q: what is the standardized concentration of NaOH?

A: We are given mass KHP is 0.550 g To neutralize it, volume of NaOH used is 33.0mL We have to find…

Q: 4. You have a solution of 0.2064 M cobalt(II) chloride. (a) How many moles of solute are contained…

Q: What volume of 1N NaOH in mL should be added to a liter of 0.66 N KOH in order for the resulting…

Q: A student was tasked to neutralize 25.8 mL solution of 0.379 M H2SO4 (98.079 g/mol) using 0.562 M…

A: Given-> Volume of H2SO4 = 25.8 ml Molarity of H2SO4 = 0.379 M Molar mass of H2SO4 = 98.079…

Q: What mass of NaOH would you need to prepare a 3.0L solution of 0.2m NaOH ?

Q: You have a solution of 0.1609 M zinc(II) chloride. (a) How many moles of solute are contained in…

A: Given: Molarity of solution = 0.1609 M Volume of solution = 47.13 ml = 47.13 × 10-3 L

Q: 1) Calculate the number of moles of solute present in each of the following solutions: a) 255 mL of…

Q: How many moles of potassium bromide should be added to water to prepare 1.81 L of solution with a…

A: Given data : Volume of solution to be prepared = 1.81 L Molarity of solution = 0.536 M We have to…

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: 2+ hat will the concentration of Mg?t

Q: a student will be preparing 100.0 ml of a 0.050 m aqueous solution of NaCl in a clean and dry…

Q: How many milliliters of an aqueous solution of 0.217 M copper(II) fluoride is needed to obtain 17.1…

A: The molarity of the solution is = 0.127 M The mass of copper(II) fluoride (solute) is = 17.1 g The…

Q: 20. A sample of 0.0255 mol potassium hydroxide (KOH) was dissolved in water to prepare 10.0 mL of…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: You have a 250 mM stock solution of Tris. What volume of this stock…

Q: If 50.0ml of NaOH solution is required to react completely with 0.47g KHP, what is the molarity of…

A: Molarity of a solution represents the concentration of solution, which is generally expressed as…

Q: Some vinegar is just too strong to use in salad dressing. To 1⁄2 cup of vinegar containing 7.0%…

A: Concentration of acetic acid in vinegar = 7.0% Volume of vinegar = 1/2 cup New volume = 5 tpsp + 1/2…

Q: A 13.2 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If…

A: The question is based on the concept of quantitative analysis. we need to calculate percentage…

Q: A 77.0 mL77.0 mL aliquot of a 0.600 M0.600 M stock solution must be diluted to 0.100 M.0.100 M.…

Q: A metal alloy is made up of elements M and N. The mass of a sample of the metal is 114.5 g. Metal M…

Q: How many mL of 0.25 M of SDS is required to be poured in a 750 mL so that its final concentration is…

A: From given data Initial concentration M1= 0.25 M Final concentration M2= 0.024 M Final volume V2 =…

Q: 6 M of HCl solution is required for the chemical analysis. How much water must be added to 250 mL…

A: Given: Initial concentration (stock solution), M1 = 12 M The initial volume (stock solution), V1…

Q: What mass (g) of KBr is required to make 61 mL of 0.89 M KBraq) solution?

A: The objective of this question is to find out the mass of KBr required to make a 0.89 M solution in…

Q: 2. How many milliliters of 0.60 M KNO3(aq) would need to be added to a flask and diluted to a total…

A: The moles of the substance is described as the product of the substance concentration and the total…

Q: (c) How many milliliters of 10.6 M HCl solution are needed to obtain 0.305 mol of HCI?

A: The objective of the question is to find out the volume of a 10.6 M HCl solution that would contain…

Q: What volume, in militers, of 6.0 M NaOH is needed to prepare 175 ml of 0.20 M NaOH by dilution?"

A: We are to prepare 175 mL of 0.20 M NaOH solution by dilution of 6.0 M NaOH. We need to find volume…

Q: I measure out 15.98 g of potassium chloride and dissolve it in water. The total volume of solution…

A: Given, amount of KCl =15.98 gvolume of solution =500.0 mL =0.5 Lmolar mass of KCl =74.55 g/molwe are…

Q: 21. What volume of stock solution is needed to prepare 100.00 mL of 0.125 M solution from 2.50 M…

Q: A 13.3 g sample of an aqueous solution of hydrochloric acid contains an unknown amount of the acid.…

A: Given: Mass of sample = 13.3 g Volume of Ba(OH)2 = 21.1 mL Molarity of Ba(OH)2 = 0.603 M Molar mass…

Q: 4. Sodium hydroxide solution was standardized against one gram of potassium acid phthalate. First…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 2.) 16.52 g of CaSO4 are added to water to prepare 700.0 mL of solution. a. ) Calculate the molarity…

A: Given data, Mass of CaSO4 = 16.52 g Volume of solution to be prepared = 700 mL

Q: How many moles of potassium bromide should be added to water to prepare 1.62 L of solution with a…

A: Given data : Volume of solution to be prepared = 1.62 L Molarity of solution = 0.276 M We have to…

Q: How many grams of barium chloride, BaCla, must be dissolved to prepare 300. mL of a 0.201 M aqueous…

A: W (g) = Molarity x Molar mass x Volume (mL)/1000

Q: A solution contains 20.0% (by mass) of ammonium sulfate, (NH4)2SO4, and has density of 1.12 g/mL.…

Q: 1. A 10. mL portion of a 0.60 M CuSO:(aq) solution is diluted to a volume of 0.10 L. What is the…

A: Since the initial concentration given = 0.6 M = M1 And initial volume of solution = 10 mL = 10 /…

Q: What is the molarity of a solution made by dissolving 4.88 g of KF in 423 mL of water?

A: Molarity of a given solution is defined as the total number of moles of solute per litre of…

Q: If a 10.0mL volumetric flask is used to prepare the dilution, what volume of 0.50 M cobalt (II)…

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

A: Given data Initially: volume of ( H2SO4 ) Solution, V1 =150 mL Normality , N1 = 0.200…

Q: Your group's task is to prepare 100.00 mL of 0.250 M solution of sucrose, C12HO11. You are to use a…

A: Interpretation - To determine the number of mole of sucrose are required and mass of sucrose…

Q: Solubility is the concentration of a saturated solution at a specific a) amount b) pressure c)…

A: The answer to the following question is-

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Titration

VIEW

Step 2: Standard solution

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

The amount of I3-in a solution can be determined by titration with a solution containing a known concentration of S2O32-. If 45 mL of 0.350 M Na2S2O3 is needed to titrate 22 mL of a I3-sample, what is the concentration of the I3-? Give your answer to three decimal places.
A 7.46 g sample of an aqueous solution of nitric acid contains an unknown amount of the acid. If 25.6 mL of 0.355 M barlum hydroxide are required to neutralize the nitric acid, what is the percent by mass of nitric acid in the mixture? % by mass
In a laboratory experiment, a 15.0 mL sample of a KCl solution is poured into an evaporating dish with a mass of 24.10 g. The combined mass of the evaporating dish and KCl solution is 41.50 g. After heating the evaporating dish and the dry KCl have a combined mass of 28.28 g. a) What is the mass percent (m/m) of the KCl solution? b) What is the molarity (M) of the KCl solution c) If water is added to 10.0 mL of the initial KCl solution to five a final volume of 60.0 mL, what is the molarity of the diluted KCl solution?
2) Determine the molarity of a solution formed by mixing 8.56 g KIO; with sufficient water to obtain a total volume of 2000. mL.
How many grams of palladium(II) perchlorate, Pd(ClO4)2 are required to prepare500.0 mL of a 0.712 M Pd(ClO4)2 solution?a. 0.356 gb. 1.42 gc. 215.0 gd. 433.6 ge. 108.7 g
How many mL of a 0.185 M aqueous solution of cobalt(II) iodide, Col2, must be taken to obtain 20.5 grams of the salt? mL
An aqueous Na;PO, solution is made using 42.3 g of Na:PO, diluted to a total solution volume of 2.00 L. 163.94 g NazPO4) (molar mass 1 mole Na3P04 a) In one calculation string, show the calculation for determining the molarity of the sodium phosphate solution. b) In one calculation string, show the calculation for determining the mass percent of the sodium phosphate solution from the molarity you determined in part a. c) Show the necessary calculations for determining the molality of sodium phosphate solution from the molarity you determined in part a. These calculations should be as condensed as possible, but don't need to be in one string. Assume a density of 1.08 g/mL for the solution.
If 30. g of AgNO3 is available, what volume of 0.40 M AgNO3 solution can be prepared?
If 10. g of AgNO3 is available, what volume of 0.35 M AgNO3solution can be prepared?
How many milliliters of an aqueous solution of 0.159 M nickel(II) acetate is needed to obtain 4.06 grams of the salt?
Suppose a group of volunteers is planning on building a park near a local lake.the lake is known to contain low levels of arsenic .Therefore prior to starting construction the group decides to measure the current level of arsenic in the lake.a) If a14.7cm3 Sample of lake water is found to have 168.3 gems mg Aersinic .What is concentration of arsenic in the sample in parts per billion ,assuming density of lake water is 1.00g/cm3
V A chemistry student weighs out 0.135 g of phosphoric acid (H₂PO4), a triprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1200M NaOH solution. O CHEMICAL REACTIONS Determining the volume of base needed to titrate a given mass... Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Be sure your answer has the correct number of significant digits. icrosoft O W Welcome, Simrat - Microsoft tab os lock 0 Microsoft 6.52.210... esc mL control Explanation 1 Q A 2 option Z Check @ 2 W S #3 X command x10 X E D NOV 14 $ 4 C S R 8 F 07 dº % 5 T V tv MacBook Pro < 6 G Y & 7 H Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility U * 00 8 B N J "A ( 9 M K O W O L H P command 33 + 11 [ I opt