With molarity? what mass of water must be used to dissolve 500g c2h5oh to prepare a 3.00 m solution?
2.6 kg

1.65 kg

5.2 kg

3.87 kg
what is the molality of a solution that contains 80.0 g al2(so4)3 in 625 g h2o?
0.578 m

0.476 m

0.374 m

0.213
25 g of naoh is dissolved in 120 g of water. what is the molality?
5.21 m

4.16 m

3.74 m

7.32 m

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.