This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: If an aqueous solution is prepared by dissolving 1.6 mol Na2CrO4 in 1.0 L of a buffer at pH 8.24, ... (Read 107 times)

jman1234

  • Hero Member
  • *****
  • Posts: 560
on: Jul 8, 2021

Question 1

How much carbon monoxide is required to reduce 2.00 metric tons (2000 kg) of iron ore if the ore is 5.03% iron?

Fe2O3(s) + 3 CO(g) → 2 Fe(l) + 3 CO2(g)

◦ 151 kg
◦ 75.7 kg
◦ 25.2 kg
◦ 40.7 kg
◦ 50.5 kg

Question 2

If an aqueous solution is prepared by dissolving 1.6 mol Na2CrO4 in 1.0 L of a buffer at pH 8.24, what will be [Cr2O72-] in the solution? The resultant equilibria are:

HCrO4-(aq) H+(aq) + CrO42-(aq)  Ka = 3.2 × 10-7
 2 HCrO4-(aq) Cr2O72-(aq)+ H2O(l) K = 33

◦ 9.9 × 10-5 M
◦ 2.9 × 10-28 M
◦ 8.9 × 10-9 M
◦ 8.6 × 102 M
◦ 2.8 × 10-2 M
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by jman1234 on Jul 8, 2021

Joc

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 8, 2021
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 56% of students answer this correctly


jman1234

  • Member
  • Posts: 560
Reply 2 on: Jul 8, 2021
Great answer, keep it coming :)

Missbam101

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Hydration of ions in solution Hydration of ions in solution
a solution is prepared in which a trace or small amount of Fe2+ is added to a much larger ... a solution is prepared in which a trace or small amount of Fe2+ is added to a much larger ...
Four common staining procedures used in chromosomal analysis. Most karyotypes are prepared using G-b Four common staining procedures used in chromosomal analysis. Most karyotypes are prepared using G-b
Which of the buffers below would be the BEST choice for making a solution capable of buffering ... Which of the buffers below would be the BEST choice for making a solution capable of buffering ...
What is the molarity (in mol/L) of the NaOH solution? What is the molarity (in mol/L) of the NaOH solution?
Which of the following is not a unit factor related to a 10.0% aqueous solution Which of the following is not a unit factor related to a 10.0% aqueous solution
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library