Hydrocyanic acid (HCN) is a weak acid whose Ka = 4.9 x 10-10 . • What is the pH and the percent ionization of a solution whose initial concentration is 0.25 M? • At what concentration does HCN exhibit 0.05 percent ionization? g

The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas