If the goal is to create 0.50 L of a 1.7 M KBr solution, how many grams of KBr will be needed?

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid

In general metals get as you move from left to right across the periodic table.