Should you add acid to water or water to acid? Explain. Why do we need acid-base indicators that change at pH values other than 7? Why does the strength of an acid affect the enthalpy of neutralization? How is this important in a biological system?
Chemist Johannes Bronsted and scientist Thomas Lowry proposed that an acid should be defined as a substance that can donate a proton, while a base is any substance that can accept protons. American chemist G.N. Lewis proposed a different theory. Learn about three popular scientific definitions of...
A base is any molecule that accepts a proton, while an acid is any molecule that releases a proton. For this reason, ammonia is considered basicbecause its nitrogen atom has an electron pair that readily accepts a proton. Is ammonia a gas? At room temperature, ammonia is acolorless, highly...
One function of acids and bases is for cleaning. Since they can get rid or stains and other dirts, their cleaning agent function works effectively. Muriatic acid is an example of acid cleaning agent while soap is one best example of the product from base. If we try to compare the two cl...
Titration is the addition of a standard solution (the titrant ) of precisely known concentration to a measured volume of a solution with unknown concentration (the analyte ) to react according to a known stoichiometry. It is an important technique in analytical chemistry. In an acid-base titr...
What is Lewis acid and base? Read the steps on how to identify Lewis acids/bases here. Learn more about some examples and advantages of Lewis acid-base theory. Related to this Question Why has HCl considered a Lewis acid? Is NH3 a Lewis acid, a Lewis base, or neither? Explain....
Why is nitrogen the main component of air? Why is nitrogen classified as a greenhouse gas? Why is nitrogen used in laser cutting? Why did Robert Bunsen create the Bunsen burner? Why is NH3 soluble in water? Why are nitrogen-fixing bacteria so important to other organisms?
Why is o-nitrophenol more acidic than o-methoxyphenol? AsH3 is more acidic than NH3. Explain why. Consider the below diagram, and explain why these are ranked from most acidic to least acidic. Explain why CH3CONH2 is a stronger acid and a weaker base than CH3CH2NH2. ...
Why is the pK_a = pH at 1/2 the equivalence point volume for the titration of a weak acid by a strong base? The pKa of NH4+ is 9.25. What is the highest pH that a buffer system composed of NH4+ and NH3 will buffer at effectively? a. 10.25 b. 13.25 c. 12.25 d. 11.25 Why ...
Is HCl a strong acid or a strong base in water? Explain. Sulfuric acid is a strong monoprotic acid. The bisulfate anion is a weak acid with a pKa of 1.92. Calculate the pH of a 0.1000 M solution of sulfuric acid. NH_3 is a ...