A silver coin was analysed and found to contain only silver and copper. 1.580 g of this coin was dissolved in concentrated nitric acid and the resultant solution diluted. Reaction of the solution
with excess hydrochloric acid yielded 1.050 g of silver chloride. Calculate the percentage of silver
in the samples

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.

The melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?

Draw two cyclic constitutional isomers of cis-1