What is the total amount of heat required to vaporize 1.00 gram of h2o(g) at 100.0c and 1 atmosphere?
(1) 4.18 j(2) 334 j(3) 373 j(4) 2260 j

Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

Calculate the number of moles of ethane in 100 grams

Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests.which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory