Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.80. You have in front of you •100 ml of 7.00x10-2 MHCI, •100 ml of 5.00x10-2 M NaOH. and plenty of distilled water. You start to add HCl to a beaker of water when someone asks you a question. When you return to your dilution, you accidentally grab the wrong cylinder and add some NaOH. Once you realize your error, you assess the situation. You have 83.0 mL of HCI and 90.0 ml. of NaOH left in their original containers. Part A Assuming the final solution will be diluted to 1.00 L, how much more HCI should you add to achieve the desired pH? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) 22.9 HA 4 mL ?

Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.80. You have in front of you •100 ml of 7.00x10-2 MHCI, •100 ml of 5.00x10-2 M NaOH. and plenty of distilled water. You start to add HCl to a beaker of water when someone asks you a question. When you return to your dilution, you accidentally grab the wrong cylinder and add some NaOH. Once you realize your error, you assess the situation. You have 83.0 mL of HCI and 90.0 ml. of NaOH left in their original containers. Part A Assuming the final solution will be diluted to 1.00 L, how much more HCI should you add to achieve the desired pH? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) 22.9 HA 4 mL ?

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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Question

ard
Imagine that you are in chemistry lab and need to
make 1.00 L of a solution with a pH of 2.80.
You have in front of you
•100 mL of 7.00x10-² MHCI,
•100 mL of 5.00x10² M NaOH.
and
• plenty of distilled water.
You start to add HCl to a beaker of water when
someone asks you a question. When you return to
your dilution, you accidentally grab the wrong
cylinder and add some NaOH. Once you realize
your error, you assess the situation. You have 83.0
mL of HCI and 90.0 mL of NaOH left in their
original containers.
« Previous
▾ Part A
Assuming the final solution will be diluted to 1.00 L, how much more HCI should you add to
achieve the desired pH?
Express your answer to three significant figures and include the appropriate units.
► View Available Hint(s)
22.9
#A
Review Constants 1 Periodic Table
mL
?
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Please answer these questions on your Page 9 We dissolve 1.66 g of an unknown acid, HA, in enough water to produce 25.0 mL of solution. The pH of this solution is 1.33. We titrate this solution with a 0.277 M solution of NaOH and we need 14.4 mL of this NaOH solution to reach the equivalence point. The temperature is 25.0°C throughout. (a) ) What is the molar mass of HA? (b) ) What is the dissociation constant, Ka, of HA(aq)? (c) ( What is the pH at the equivalence point?