Use the Henderson-Hasselbalch equation to calculate the ratio of HCO3- to H2CO3 (Ka = 4.2 x 10-7) in normal blood (which has a pH = 7.40). Describe how you would prepare this buffer.

What metric units would you use to measure the thickness of a key

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver