Calculate the molality of 15% per mass of MgCl2

Esign techniques and materials that reduce the negative environmental impact of a structure are referred to as

What three things determine the shape and size of a puddle when water is poured out onto a surface

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?