2.
Give the procedure for separation of the following:
(a) Crude oil into its constituents
(b) A mixture of water and petroleum ether
(c) A mixture of ethanol and propanone.,
2.
What are the applications of the following Spectroscopic
techniques in organic Chemistry?
(a) Infra-red spectroscopy (b) Ultra-violet visible spectroscopy
(c) Nuclear magnetic resonance spectroscopy (d) Mass
spectrometry
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Ответ:
a. Whole is 4
b. Whole is 225
c. part is 47
d.Part is 120 whole is 400
Step-by-step explanation:
With this problems of basci math you just have to think how much out of how much, the whole is the complete part and the part is what you are taking of or calculating, with fractions is easy because the whole is the number that is below and the part is the number on top of the fraction, and with percentages the number tha comes after teh "of" is the whole, and the number before is the part.