What is the molarity of solution prepared by dissolving 11.75 g of kno3 in enough water to produce 2.00 l of solution?

Calculate the number of molecules present in 0.750 mol of mgo.

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom