Chemistry, 27.03.2021 01:00 aleilyg2005
Please work out all the problems on this page, no links, no i don't knows please do not take advantage of me or my points please actually answer these questions
Answers: 1
Chemistry, 22.06.2019 08:00
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 it’s still hot? separation: filtration of precipitatewhy don’t 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 doesn’t 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 “synthetic” salicylic acid is 151-154oc?
Answers: 1
Chemistry, 22.06.2019 20:30
Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?
Answers: 1
Chemistry, 22.06.2019 21:00
In the experiment you asked to react hydrochloric acid and with sodium hydroxide. when measuring the volume of the reactants, which instrument would give the greatest precision.
Answers: 3
Please work out all the problems on this page, no links, no i don't knows please do not take advanta...
Mathematics, 10.06.2020 06:57
Mathematics, 10.06.2020 06:57
Social Studies, 10.06.2020 06:57
Mathematics, 10.06.2020 06:57
Mathematics, 10.06.2020 06:57
Mathematics, 10.06.2020 06:57
Biology, 10.06.2020 06:57
Mathematics, 10.06.2020 06:57
Social Studies, 10.06.2020 06:57
Mathematics, 10.06.2020 06:57
Mathematics, 10.06.2020 06:57
Health, 10.06.2020 06:57
Geography, 10.06.2020 06:57
Mathematics, 10.06.2020 06:57