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 140 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
YES! Correct, THANKS for helping me on my review

dreamfighter72

  • Member
  • Posts: 355
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Geoengineering is not a solution to climate change Geoengineering is not a solution to climate change
Solution Solution
What is the pH of an aqueous solution if the [H+] = 0.000 000 075 M? What is the pH of an aqueous solution if the [H+] = 0.000 000 075 M?
Buffer Lab help+advice? Buffer Lab help+advice?
Consider an aqueous solution of calcium nitrate added to an aqueous solution of sodium ... Consider an aqueous solution of calcium nitrate added to an aqueous solution of sodium ...
To make a 3.00 m solution, one could take 3.00 moles of solute and add To make a 3.00 m solution, one could take 3.00 moles of solute and add
Video: Inflammation Animation

For a complete list of videos, visit our video library