This topic contains a solution. Click here to go to the answer

Author Question: A buffer was prepared by adding 2.4 g of ammonium nitrate to 100.0 mL of 0.30 M aqueous ammonia (Kb ... (Read 59 times)

Anajune7

  • Hero Member
  • *****
  • Posts: 574

Question 1

A buffer is 0.282 M C6H5COOH(aq) and 0.282 M C6H5COONa(aq). Calculate the pH after the addition of 0.150 moles of nitric acid to 1.0 L of the buffer. For C6H5COOH, pKa = 4.20.
◦ 3.69
◦ 4.20
◦ 4.71
◦ 3.87
◦ 7.00

Question 2

A buffer was prepared by adding 2.4 g of ammonium nitrate to 100.0 mL of 0.30 M aqueous ammonia (Kb = 1.8 × 10-5). To this solution was then added 10.0 mL of 0.30 M aqueous sodium hydroxide, which caused a pH change of ________.
◦ 3.0 pH units
◦ 0.30 pH units
◦ 0.90 pH units
◦ 0.09 pH units
◦ zero


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Anajune7 on Jul 8, 2021

reversalruiz

  • Sr. Member
  • ****
  • Posts: 327
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly




Anajune7

  • Member
  • Posts: 574
Reply 2 on: Jul 8, 2021
Excellent


jackie

  • Member
  • Posts: 324
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

For a complete list of videos, visit our video library