What is the ph after 0.195 mol of naoh is added to the buffer from part a? assume no volume change on the addition of the base.
part a: what is the ph of a buffer prepared by adding 0.809 mol of the weak acid ha to 0.609 mol of naain 2.00 l of solution? the dissociation constant ka of ha is 5.66×10−7

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.

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?

How hot is the suns corona? (integrated science)