Apiece of zinc of mass 5.00 g is dropped into a beaker containing 250. ml of 0.560 m hydrochloric acid. calculate in joules the work done by the system as a result of the reaction. the atmospheric pressure is 836 torr and the temperature is 23ºc. indicate any assumptions or approximations.

What is the mass of 0.46 mil of mgcl2

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

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.