Calcule los gramos de bromobenceno (C&H Br) que deben ser disueltos en 50 g de un solvente cuyo peso molecular es 120 g/mol y su presión de vapor a 25°C es de 70 mm Hg, si
se quiere obtener una solución con una presión de vapor de 60 mmHg.
R: 10,99 g​

How many atoms are there in 5.70 mol of mg

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.

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.