Lithium is a solid phase of lithium still unknown to science. The only difference between it and ordinary lithium is that Lithium forms a crystal with an fcc unit cell and a lattice constant . Calculate the density of Lithium . Round your answer to significant digits.

0.09 moles of sodium sulfate in 12 ml of solution

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?