Chemistry, 22.02.2020 23:33 gloribellduran19
Describe where ultraviolet is found on the ems compared to the other six forms of radiation. In your description, compare and constrast its wavelenth, frequency, and energy of other regions of the ems
Answers: 2
Chemistry, 22.06.2019 06:30
This drawing shows a human body system. what is the primary function of this body system?
Answers: 3
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 18:10
Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.
Answers: 3
Chemistry, 22.06.2019 20:50
What is the vapor pressure of a solution with a benzene to octane?
Answers: 2
Describe where ultraviolet is found on the ems compared to the other six forms of radiation. In your...
Mathematics, 04.10.2020 02:01
History, 04.10.2020 02:01
Biology, 04.10.2020 02:01
Mathematics, 04.10.2020 02:01
Advanced Placement (AP), 04.10.2020 02:01
Mathematics, 04.10.2020 02:01
History, 04.10.2020 02:01
Social Studies, 04.10.2020 02:01
English, 04.10.2020 02:01
Mathematics, 04.10.2020 02:01
Mathematics, 04.10.2020 02:01