Answered: solution pH acidic, basic or neutral…

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Chemistry

solution pH acidic, basic or neutral NH4Cl NaHCO3 KNO3

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter14: Acids And Bases

Section: Chapter Questions

Problem 127QRT

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Students Mola and Rity were tasked to analyze the acidity of a 10.0-mL fermented milk sample diluted with water in a 250-mL volumetric flask. Mola obtained a 15.0-mL aliquot of this solution, diluted it to 50.0 mL, and then titrated this diluted sample. Titration data were given to Rity and she found out that the 50.0-mL diluted sample contains 0.21 mmol of lactic acid. MW: Lactic Acid (90.08) a. What is the lactic acid concentration (in M) of the titrated sample? b. Determine the lactic acid content (in M) of the 10.0-mL fermented milk sample. c. What is the lactic acid concentration (in %w/v) of the 10.0-mL fermented milk sample?
Consider the following chemical equilibrium: HCOO¯¯ (aq) + H₂O(aq) = HCOOH(aq) + OH¯(aq). Which of the following graphs represents the perturbation on the system and the change of pH when HCI is added to the container? | pH time || III pH ↑ time Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. C Q a || = III = d IV pH IV pH time time K Open Χ Your answer
Determine the concentration of H2SO4 when 10 mL of the surround water was collected near the C & H Sugar Company. Your sample was titrated with 5ml of 0.5 Molar NaOH solution to neutral the pH. Determine the concentration of H2SO4 in your water sample.
Once upon a time, Tricia and her sister Jillian are doing titration to assess the molarity of the sample's total acid content. Using the pH measurements to report acidity, they were ordered to study a clear aqueous solution of an unknown monoprotic acid. They decided to use two methods of experiments to gather essential data for their Chemistry Class. The first method is through a pH strip. To estimate the pH of the sample, Tricia used a pH strip. Tricia collected 1 mL of the sample, which came out to have a pH of around 3.3. Furthermore, Tricia made a new setup in which 1 mL of the same sample was diluted with 9 mL of water, and the pH taken was now around 3.8. The second method is Titration, and Jillian used this method. Jillian prepared a 10 mL aliquot of the sample and diluted it with 25mL of distilled water. After this, Jillian added 2 drops of phenolphthalein, and it was titrated 3.54 mL of 0.048 mmol standardized NaOH to the endpoint. With this, answer the following questions.1.…
Once upon a time, Tricia and her sister Jillian are doing titration to assess the molarity of the sample's total acid content. Using the pH measurements to report acidity, they were ordered to study a clear aqueous solution of an unknown monoprotic acid.They decided to use two methods of experiments to gather essential data for their Chemistry Class.The first method is through a pH strip. To estimate the pH of the sample, Tricia used a pH strip. Tricia collected 1 mL of the sample, which came out to have a pH of around 3.3. Furthermore, Tricia made a new setup in which 1 mL of the same sample was diluted with 9 mL of water, and the pH taken was now around 3.8.The second method is Titration, and Jillian used this method. Jillian prepared a 10 mL aliquot of the sample and diluted it with 25mL of distilled water. After this, Jillian added 2 drops of phenolphthalein, and it was titrated 3.54 mL of 0.048 mmol standardized NaOH to the endpoint.1. Using the data in the titration method,…
Once upon a time, Tricia and her sister Jillian are doing titration to assess the molarity of the sample's total acid content. Using the pH measurements to report acidity, they were ordered to study a clear aqueous solution of an unknown monoprotic acid.They decided to use two methods of experiments to gather essential data for their Chemistry Class.The first method is through a pH strip. To estimate the pH of the sample, Tricia used a pH strip. Tricia collected 1 mL of the sample, which came out to have a pH of around 3.3. Furthermore, Tricia made a new setup in which 1 mL of the same sample was diluted with 9 mL of water, and the pH taken was now around 3.8.The second method is Titration, and Jillian used this method. Jillian prepared a 10 mL aliquot of the sample and diluted it with 25mL of distilled water. After this, Jillian added 2 drops of phenolphthalein, and it was titrated 3.54 mL of 0.048 mmol standardized NaOH to the endpoint.1. Determine of the unknown is a strong acid a…
: pH Titration A student is titrating 150.0 mL of a 0.300 M solution of lactic acid (pka of lactic acid is 3.85) with a 0.250 M solution of NaOH. . NOTE: You can use the generic formula of HA for lactic acid and A- for the conjugate base. 3.1 added. Round your answer to 2 decimal places. Calculate the initial pH of the lactic acid solution, before any NaOH has been pH = 3.2 Calculate the pH of the acid solution after the chemist has added 100.0 mL of the 0.2500 M NaOH solution to it. Round your answer to 2 decimal places. pH = 3.3 Calculate the pH of the acid solution after the chemist has added 200.0 mL of the OH solution to it. Round your answer to 2 decimal places. 0.2500 M pH =
A 0.4-L unbuffered solution needs the pH adjusted from 10.0 to 3.0. How many microliters of a 5 molar HCl solution need to be added to adjust the pH? Report your answer to four decimal places. For this question: Assume the volume of HCl being added is negligible and the total volume of the solution does not change. The volume of the solution is *not* 1 L like it was in the practice pools. The question requests your answer be reported in μL (microliters)!!
Determine the pH of a solution by constructing a BCA table, constructing an ICE table, writing the equilibrium constant expression, and using this information to determine the pH. Complete Parts 1-4 before submitting your answer. NEXT > 0.040 mol of solid NaOH is added to a 200.0 mL buffer containing 0.100 mol C6H5NH3Cl and 0.500 M C6H5NH₂. Fill in the table with the appropriate value for each involved species to determine the moles of reactant and product after the reaction of the acid and base. You can ignore the amount of water in the reaction. Before (mol) Change (mol) After (mol) 0.060 Initial (M) Change (M) Equilibrium (M) 0 -X 0.700 - x 1 -0.060 C6H5NH3*(aq) + OH (aq) 0 1 0.040 0.140 0.500 + x CoHşNHz(aq) + 0.300 + x 2 0.500 0.500 - x -0.040 0.300 - x -0.140 Determine the pH of a solution by constructing a BCA table, constructing an ICE table, writing the equilibrium constant expression, and using this information to determine the pH. Complete Parts 1-4 before submitting your…
pH meter accurately measures the reading of pH by measuring the voltage difference of hydrogen ions between test solution and KCl. pH meter reading is the same as universal indicator pH scale. First statement is correct. Second statement is correct. Both statements are correct. Neither statement is correct. Acid-base indicators are strong organic acids and bases. The acid color form of acid-base indicators is different from its base color form. First statement is correct. Second statement is correct. Both statements are correct. Neither statement is correct. Predict the behavior of the resulting NH4Br salt solution if it is acidic, basic or neutral. Acidic Basic Neutral
First read the text sections 10.5 and 10.6 on pH. This is a Dry Lab since we cannot meet on Campus. After calibrating a pH meter you would have measured the pH of four different Basic Aqueous Solutions and examined the data for trends. You would have calculated the expected pH of each of the strong base solutions by assuming that for every NaOH formula unit that dissolves, one OH- ion is released. Thus, we can assume that the OH- Molarity equals the NaOH Molarity. Using the OH- Molarity and the water ionization equilibrium expression (Kw= 1.0 X 10 to the -14 power H+ Molarity X OH- Molarity), www we can calculate the H+ Molarity of the solution. Using the H+ Molarity, we can calculate the solution's pH. Thus a 1.0 X 10 to the 4 power NaOH solution has a pH of 10. The calculated pH value is arrived at as follows. By rearranging the water ionization equilibrium expression and plugging in the OH- Molarity, we can solve for H+ Molarity. H+ M = 1.0 X 10 to the -14 power divided by 1.0 X 10…
The pH range of a solution can also be determined using indicators. Indicators are molecules that exhibit different colors over a specific pH range. Examples of indicators and the associated colors are shown below. pH Range and Colors 1 2 3 Indicator 4 6 7 Bromcresol green |Congo Red Methyl Yellow Thymol Blue Methyl Violet pH Range and Colors Indicator 2 3 4 5 7 Bromcresol green yellow Oblue Congo Red Methyl Yellow Thymol Blue Methyl Violet Jorange-red Dyellow Dyellow blue red red yellow Oviolet Bromcresol green, for example, would be green between pH 4-5, and gradually change to blue