What is the molarity of a solution in which 45.12 g of NH4 CL are dissolved in 185.24 mL of solution ?

What does x represent in the formula for the compound xcl4?

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer