Given 0.1 m solutions of na3po4 and h3po4, describe the preparation of 1 l of a phosphate buffer at a ph of 7.5. what are the molar concentrations of the ions in the final buffer solution, including na+ and h+?

Which best describes why nh4+ can form an ionic bond with ci-?

Calculate the number of moles of ethane in 100 grams

A0.10 m aqueous solution of sodium sulfate is a better conductor of electricity than a 0.10 m aqueous solution of sodium chloride. which of the following best explains this observation? (a) sodium sulfate is more soluble in water than sodium chloride. (b) sodium sulfate has a higher molar mass than sodium chloride. (c) to prepare a given volume of 0.10 m solution, the mass of sodium sulfate needed is more than twice the mass of sodium chloride needed. (d) more moles of ions are present in a given volume of 0.10 m sodium sulfate than in the same volume of 0.10 m sodium chloride. (e) the degree of dissociation of sodium sulfate in solution is significantly greater than that of sodium chloride.