Yes, toluene/water combination would be a good binary solvent system for a mixed recrystallization.
Because toluene is a fairly nonpolar chemical and water is polar, they will not dissolve together, making the combination of toluene and water an excellent binary solvent system.
<h3>What is mixed recrystallization?</h3>
- The substance to be crystallized is first dissolved in the smallest quantity of hot "soluble solvent," and then hot "insoluble solvent" is added dropwise until the solution becomes faintly hazy.
- This is how mixed recrystallization happens.
<h3>What is binary solvent?</h3>
- When synthesizing pharmaceuticals and drug precursors, binary solvent mixtures are employed as carriers in HPLC columns.
- For accurate and effective separation of the necessary pharmaceutical components, it is essential to precisely manage the mixture's composition.
- Water-based solutions of ethanol, sugar, and salt.
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self-esteem
The developmental task of middle
childhood is to achieve industry. Industry molds the child's self-esteem. In
middle childhood, the child's description of himself will include both negative
and positive characteristics. In this stage, unique differences in self-esteem
become increasingly stable.
Answer:
False
Explanation:
BCP PM shall act immediately when an interruption occurs during or after working hours. That is, at any time, BCP PM must act and resolve the interruption that is happening.
Every business activity, no matter what the business line or size of the company, is eventually subject to interruptions or adverse situations that hinder or impede its operations. These outages, although rare, can happen anytime and when they are least expected, caused by various types of threats such as natural disasters, fires, financial fraud, epidemics, system failures, etc.
Since outages can happen any time BCP PM must act as soon as outages occur and must have a set of preventive strategies and action plans that ensure the full functioning of a company's essential services during any type of failure until situation is normalized.
Answer:
Your three-year-old niece is upset that you have a bigger cookie than she does. You calm her down by breaking her cookie in half and pointing out that she now has two cookies to your one. You were able to convince her of this because she has not yet developed the theory of CONSERVATION.
Explanation:
Conservation is a part of the developmental task in psychology, which is processed between the 4th and 7th year of life. The term was described by Jean Piaget, a Swiss philosopher, natural scientist and developmental psychologist. He described the conservation process as part of one of the developmental stages during childhood. Conservation means understanding that the amount of a substance remains the same even when its form changes, being a psychological phenomenon observed in preschool children and consists in the impossibility of comprehending by them such characteristics of surrounding objects as quantity, size, volume, etc.
