5. Using one of those fancy capipers I demonstrated in class, I measure the sides of a cube as 6.8 cm, by 6.83 cm, by 9.37 cm. The formula for volume is: V = length X width x height. Using significant digits, what is the best answer you can come up for the volume of the cube?

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.