1. _____is used in the process of paper chromatography. A. Filter Paper B. Whatman Paper 2. In the dilution formula, N1V1=N2V2, N2 is . A. normality the concentrated solution B. normality of the desired solution 3. The reactivity of the alkaline earth metals in the decreasing order of . A. Be, Mg, Ca, Sr, B. Sr, Ca, Mg, Be 4. The chemical reaction of Br H20 + n-hexane produced . A. two layers of colorless solution

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter4: Recrystallization

Section: Chapter Questions

Problem 8Q

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Concept explainers

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

Question

1. _________________is used in the process of paper chromatography. A. Filter Paper B. Whatman Paper 2. In the dilution formula, N1V1=N2V2, N2 is ________. A. normality the concentrated solution B. normality of the desired solution 3. The reactivity of the alkaline earth metals in the decreasing order of __________. A. Be, Mg, Ca, Sr, B. Sr, Ca, Mg, Be 4. The chemical reaction of Br H20 + n-hexane produced __________. A. two layers of colorless solution B. orange and yellow layered solution C. violet and reddish brown layered solution 5. The _________ is used to transfer solid substances from container to another. A. Spatula B. Pippete C. Stirring rod

Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.

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