What is the eclipsing cost of Br and H if the energy difference between the staggered and eclipsed conformations of bromoethane is 13 kJ/mol

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 kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never