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

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 124 times)

jman1234

  • Hero Member
  • *****
  • Posts: 560

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


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
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 :)


LVPMS

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Excellent

 

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

For a complete list of videos, visit our video library