Questions from General Chemistry

Q: When sodium hydroxide, NaOH, is added dropwise to a buffered

When sodium hydroxide, NaOH, is added dropwise to a buffered solution, the component of the buffer consumes the added hydroxide ion.

Q: When hydrochloric acid, HCl, is added dropwise to a buffered

When hydrochloric acid, HCl, is added dropwise to a buffered solution, the component of the buffer consumes the added hydrogen ion.

Q: Suppose that 27.34 mL of standard 0.1021 M

Suppose that 27.34 mL of standard 0.1021 M NaOH is required to neutralize 25.00 mL of an unknown H2SO4 solution. Calculate the molarity and the normality of the unknown solution.

Q: In each of the following chemical equations, identify the conjugate acid

In each of the following chemical equations, identify the conjugate acid–base pairs. a. CH3NH2 + H2O ⇌ CH3NH3+ + OH- b. CH3COOH + NH3 ⇌ CH3COO- + NH4+ c. HF + NH3 ⇌ F- + NH4+

Q: Write the conjugate acid for each of the following. a

Write the conjugate acid for each of the following. a. NH3 b. NH2- c. H2O d. OH-

Q: Write the conjugate base for each of the following. a

Write the conjugate base for each of the following. a. H3PO4 b. HCO3- c. HF d. H2SO4

Q: If 500. g of water is added to 75 g of

If 500. g of water is added to 75 g of 25% NaCl solution, what is the percent by mass of NaCl in the diluted solution?

Q: Name four strong acids. For each of these, write the

Name four strong acids. For each of these, write the equation showing the acid dissociating in water.

Q: Organic acids contain the carboxyl group / Using acetic

Organic acids contain the carboxyl group Using acetic acid, CH3-COOH, and propionic acid, CH3CH2-COOH, write equations showing how the carboxyl group enables these substances to behave as weak acids...

Q: Calculate the [OH-] in each of the following solutions,

Calculate the [OH-] in each of the following solutions, and indicate whether the solution is acidic or basic. a. [H+] = 4.01 * 10-4 M b. [H+] = 7.22 * 10-6 M c. [H+] = 8.05 * 10-7 M d. [H+] = 5.43...