Quick help would be appreciated, thanks. Sonni added 18.76 mL of KOH to 20.00 mL of 0.399 M HF until the equivalence point was reached. What is the concentration of conjugate base at the equivalence point after the initial neutralization?

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.

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

What is dhmo? hint: you find it everywhere something is wet..