A solution of ethanol CH3CH2OH and water is boiling at 90.4°C. A sample of the vapor above the solution is cooled until it condenses. This condensed sample is analyzed, and turns out to be 75.% ethanol by mass. Calculate the percent by mass of ethanol in the boiling solution. Here's some data you may need: normal boiling point density vapor pressure at 90.4°C ethanol 78.°C 0.79gmL 1176.torr water 100.°C 1.00gmL 537.torr Be sure your answer has the correct number of significant digits. Note for advanced students: you may assume the solution and vapor above it are ideal.

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

Hey can you me with this i really need y’all

If a solution had a ph of 7 what is the solution