What two conversion factors would you need to use to find the number of hydrogen atoms in 2.12 moles of propane (C 3 H 8 ) ?

How to convert a density of 0.791g/cm3 to lb/ft3

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.

Areaction in which products can react to re-form reactants is