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

Author Question: Ka for HCN is 4.9 10-10. What is the pH of a 0.068 M aqueous solution of sodium cyanide? A) 0.74 ... (Read 189 times)

asd123

  • Hero Member
  • *****
  • Posts: 557
on: Aug 27, 2018
Ka for HCN is 4.9  10-10. What is the pH of a 0.068 M aqueous solution of sodium cyanide?
 
  A) 0.74
  B) 2.96
  C) 11.07
  D) 13.24
  E) 7.00

Question 2

How many iron(II) ions, Fe2+ are there in 5.00 g of FeSO4?
 
  A) 5.46  10-26 iron (II) ions
  B) 1.98  1022 iron (II) ions
  C) 1.83  1025 iron (II) ions
  D) 4.58  1026 iron (II) ions

Question 3

A sample of air from a home is found to contain 7.2 ppm of carbon monoxide. This means that if the total pressure is 695 torr, then the partial pressure of CO is ________ torr.
 
  A) 5.0  103
  B) 5.0  10-3
  C) 5.0
  D) 1.0  104
  E) 9.7  107
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Expo

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Aug 27, 2018
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 26% of students answer this correctly


asd123

  • Member
  • Posts: 557
Reply 2 on: Aug 27, 2018
Wow, this really help

emsimon14

  • Member
  • Posts: 344
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

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

sodium sodium
Please provide me with a solution for part b. Please provide me with a solution for part b.
Structures formed by phospholipids in an aqueous environment: Micelle Structures formed by phospholipids in an aqueous environment: Micelle
Integral Solution Integral Solution
Evaluate: With solution. Evaluate: With solution.
Calculate the pH of a solution formed by mixing 120.0 mL of 0.30 M HClO with 1180.0 mL of 0.20 ... Calculate the pH of a solution formed by mixing 120.0 mL of 0.30 M HClO with 1180.0 mL of 0.20 ...
Video: Status Epilepticus

For a complete list of videos, visit our video library