Select the statement that best describes a buffer

Reference no: EM13309573

Select the statement that best describes a buffer. (Concept 3.3)
A buffer causes acidic solutions to become alkaline, and alkaline solutions to become acidic.
A buffer stabilizes the pH of a solution by preventing acids or bases from dissociating.
A buffer accepts hydrogen ions when they are in excess and donates hydrogen ions when they have been depleted.
A buffer prevents the pH of a solution from changing when an acid or base is added.
Buffered solutions are always neutral, with a pH of 7.

Reference no: EM13309573

Questions Cloud

What are some internal and external factors : Cite at least two successful and two unsuccessful examples of the use of IS/IT for gaining or enhancing competitive advantages.

Define derive the activation energy for the reaction : Derive the activation energy for the reaction that has a rate constant of 3.5 x 10^-5 s-1 at 25C and the rate constant of 4.8 x 10^-4 s-1 at 45C.

Determine the net force on the dipole : An electic dipole has charges of +or- 4.10pC that are separated by 6.25cm. Determine the net force on the dipole

Explain derive the activation energy for the reaction : Derive the activation energy for the reaction that has a rate constant of 3.5 x 10^-5 s-1 at 25C and the rate constant of 4.8 x 10^-4 s-1 at 45C.

Select the statement that best describes a buffer : Select the statement that best describes a buffer.

Find the total charge on the negative side of the slab : An electrically neutral thin, square metal slab, measuring 6.00cm on a side is placed in a uniform external field that is perpendicular to its square area. What is the total charge on the negative side of the slab

Explain what is the concentration of n2o after 3 half-lives : For the first-order reaction, 2N2O---> 2N2 + O2, what is the concentration of N2O after 3 half-lives if 0.15 mol of N2) is initally placeed into in a 1.00-L reaction vessel

Light chains held together by disulfide bonds : Consist of 2 heavy chains & 2 light chains held together by disulfide bonds.

What is the incoming current : 1200 KVA TRANSFORMER CHANGES TEH INCOMING VOLTAGE FROM 1200 VOLTS TO 400 VOLTS. WHAT IS THE INCOMING CURRENT

User Account

All Pages