Chemistry, 21.04.2020 18:05, Eric0393nsuh
"You measure 48.9 mL of a solution of sulfuric acid with an unknown concentration, and carefully titrate this solution using a 1.500 M solution of KOH. You find that 34.7 mL of the KOH solution is required to fully neutralize the acid. What is the concentration of the original sulfuric acid solution
Answers: 2
Chemistry, 21.06.2019 19:30, fireyking19
If the root word engage means âto connect with something,â what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal. a.added more engine powerb. activated a connection to the pedalc. stalled the engined. released a connection to the pedal
Answers: 1
Chemistry, 22.06.2019 08:00, katelyn0579
Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when itâs still hot? separation: filtration of precipitatewhy donât we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesnât recrystallize prematurely. analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and âsyntheticâ salicylic acid is 151-154oc?
Answers: 1
Chemistry, 22.06.2019 22:30, lori90
Essay-alternative energy sources research sources of energy that are being developed. write a report of 350-400 words discussing the information you learned concerning the development of various energy sources and the impact that you think they will have on your life. include sources cited at the end of your report using the mla format. follow the rubric guidelines. note that wikipedia is not an appropriate resource for a research paper. worth 99
Answers: 3
"You measure 48.9 mL of a solution of sulfuric acid with an unknown concentration, and carefully tit...
English, 12.10.2019 00:30
Geography, 12.10.2019 00:30
Social Studies, 12.10.2019 00:30
History, 12.10.2019 00:30
Biology, 12.10.2019 00:30
World Languages, 12.10.2019 00:30