A buffer solution is made up of acetic acid ( CH3COOH) and sodium acetate (NaCH3COO). The major equilibria in the buffer system are represented above. Which equilibria could be used to support the claim that the addition of a small amount of NaOH to the buffer will result in only a very small change in pH?

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

How many miles of water are produced if 5.43 mol pbo2 are consumed