You need 1.00 liter of a buffer solution of ph 5.20 for use in the lab. what mass of the sodium salt of the conjugate base will be needed if 45.0 grams of the acid is used to prepare the solution

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

What energy is it when you flip on a switch on a lamp