A solution of methanol (CH3OH) and ethanol (C2H5OH) has a vapor pressure of 350.0 mmHg at 50.0 ° C. If the equilibrium vapor pressures of methanol and ethanol were 41 3.5 and 221.6 mmHg, respectively, what would be the composition of dissolution?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i

Which of the following is described by the equation h2o(s)+ heat=h2o(i) a freezing melting condensing evaporating