A mixture of 0.244 g of dinitrogen oxide (N2O) gas and 0.315 g of argon (Ar) gas held in a 1.51 L vessel at 18.256 ∘C. What is the total pressure, in atm, in the vessel and what are the partial pressures of the gases?

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?