A 0.1-L unbuffered solution needs the pH adjusted from 6.8 to 2. How many microliters of a 6 molar HCI solution need to be added to adjust the pH? Report your answer to four decimal places. For this question: • Assume the volume of HCI 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 uL (microliters)!

A 0.1-L unbuffered solution needs the pH adjusted from 6.8 to 2. How many microliters of a 6 molar HCI solution need to be added to adjust the pH? Report your answer to four decimal places. For this question: • Assume the volume of HCI 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 uL (microliters)!

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...

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A solution decreases the alkalinity of another solution . Does the property describe a solution that is acidic , basic , both or neutral?
A 0.1-L unbuffered solution needs the pH adjusted from 4 to 1. How many microliters of a 12 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)!!
Suppose a 0.14 M aqueous solution of oxalic acid (H₂C₂O₂) is prepared. Calculate the equilibrium molarity of CO,. You'll find information on the properties. of oxalic acid in the ALEKS Data resource. Round your answer to 2 significant digits. M D.P X S
Each row of the table below describes an aqueous solution at 25 °C. The second column of the table shows the initial components of the solution. • Use the checkboxes in the third column to explain the type of the initial solution. The fourth column describes a change in the solution. • Use the fifth column to predict how the change in the solution will change its pH. alo initial type solution initial components (check all that apply) effect of change on pH change (check one) O acidic pH higher H,0 basic add H C10, O pH lower A O neutral O pH the same acidic O pH higher H,0 add Na ClO, B O basic O pH lower O neutral pH the same O acidic pH higher Н, 0, КОН V basic add H Br O pH lower O neutral O pH the same O acidic O pH higher D Н,о, КОН O basic add K Br O pH lower O neutral pH the same Explanation Check © 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility
Each row of the table below describes an aqueous solution at 25 °C. The second column of the table shows the initial components of the solution. • Use the checkboxes in the third column to explain the type of the initial solution. The fourth column describes a change in the solution. • Use the fifth column to predict how the change in the solution will change its pH. solution initial components initial type (check all that apply) change effect of change on pH (check one) O acidic A H₂O, KOH basic ○ pH higher add KI O pH lower neutral acidic B H₂O basic add H CIO4 O neutral ☐ acidic C H₂O ☐ basic add Na CIO O neutral acidic O pH the same O pH higher O pH lower O pH the same O pH higher O pH lower O pH the same O pH higher D H₂O, KOH basic add HI O pH lower Oneutral O pH the same
A 0.478 g sample of an unknown strong base is dissolved in 50.0 mL of water and titrated with a 0.135 M HCL solution. The equivalence point is reached when a total of 29.0 mL of HCL is added. The base and acid conbine in a 1:1 ratio. (a) How many moles of base are neutralized when the equivalent point is reached? (b) What was the initial concentration (M) of this unknown base? (c) What is the molar mass of the unknown base?
Question 18 of 22 Submit What volume in milliliters of 0.0190 M Sr(OH), is required to neutralize 65.0 mL of 0.0400 M HCI? mL 1 2 4 5 6 C 7 8 +/- x 100 Tap here or pull up for additional resources 3. LO
A 0.658 g sample of a diprotic acid is dissolved in water and titrated with 0.130 M NAOH. What is the molar mass of the acid if 38.4 mL of the NaOH solution is required to neutralize the sample? Assume the volume of NaOH corresponds to the second equivalence point. 10 11 12 13 molar mass: g/mol 18 19 20 21 22 23 24
The titration of a 5.00 mL sample of an HCl solution of unknown concentration requires 4.90 mL of a 0.1000 M NaOH solution to reach the equivalence point. What is the concentration of the unknown HCl solution in M?
the percentage of KHP in an unknown sample was determined. Which of the following is NOT true. Aqueous NaOH should be standardized so concentration is accurately known. The moles of KHP can be determined at the endpoint, which is close to the equivalence point. Percentage of KHP, is equal to the mass of KHP found, divided by the mass of the unknown, multiplied by 100.
How many millimeters of 6.00M HCI would be needed to react exactly with 20.0g of pure NaOH?