What is the pH of the buffer solution that contains 2.3 g of NH4Cl in 250 mL of 0.14 M NH3? Is the final pH lower or higher than the pH of the 0.14 M ammonia solution? (Kb for ammonia is 1.8 x 10^-5)

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.