« previous next »

Author Question: A buffer solution with a pH of 4.63 is prepared with 0.14 M formic acid and ________ M sodium ... (Read 171 times)

burton19126

  • Hero Member
  • *****
  • Posts: 532
on: Aug 27, 2018
A buffer solution with a pH of 4.63 is prepared with 0.14 M formic acid and ________ M sodium formate. The Ka of formic acid is 1.8  10-4.
 
  A) 1.1
  B) 2.1
  C) 5.4  10-6
  D) 3.0  10-8
  E) 0.54

Question 2

Which one of the following is considered to be ionizing radiation?
 
  A) visible light
  B) radio waves
  C) X-rays
  D) microwaves
  E) infrared radiation


softEldritch

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Amino Acid Codons Amino Acid Codons
Ketone structure and Acetoacetic acid Ketone structure and Acetoacetic acid
Glycolysis and the citric acid cycle Glycolysis and the citric acid cycle
Overview of the fatty acid oxidation pathway Overview of the fatty acid oxidation pathway
The d-aminolevulinic acid syntheses reaction The d-aminolevulinic acid syntheses reaction
What is the freezing point of a solution of 2.86 g MgCl2 in 100 g of water? Kf for water is ... What is the freezing point of a solution of 2.86 g MgCl2 in 100 g of water? Kf for water is ...
Video: Muscle cell structures - actin, myosin and titin filaments

For a complete list of videos, visit our video library