I was reborn as the oil tycoon

Not only two of Wangling, Ye Mao them.

After listening to Liu Shang's rhetoric, even the pair of lit and others were also a forehead.

The heart is big, it is miserable!

This time, Liu Shangzhen really said that he said, and it couldn't returned.

Those other students are also doubts.

Just now Wangling, the two brothers of Ye Mao did show their powerful.

It is not a matter of undergraduate students who have just been larger.

And Liu Shang, why do you want to say that it does not comply with your strength?

Is it just for rebellion?

Under the eyes of all people, Liu Shang has also begun to weigh the drugs you need.

At this time, the breath of someone in the scene was one.

Just because Liu Shang called a series of movements, it is simple, accurate and accurate.

The normal laboratory requires that the amount of the recorded drug is two digits after the decimal point.

Can Liu Shang did the last four.

In this way, he weighs the speed of the drug to be more than two of the two king and Ye Mao!

Good guy!

This is simply, it is human meat electronic scale!

Just when everyone was extremely shocked, when the surprised eyes were vigilant, they didn't forget the skin.

"You don't know, my second brother, his family is open, the soldier."

"He is responsible for helping some soy sauce from Xiao, so it will be so accurate!"

His words, it attracted a smile of a few female students, and also exchanged Liu Shang a "condolences" his eyes.

Subsequently, Liu Shang began his formal experimental operation.

What constitutional water bath is fixed, three flasks, moisture, spherical condensed tube, temperature measuring machine connection assembly ...

Waiting for this series of operations, as well as the clouds.

Natural, accurate, fast!

It is perfect!

If it is not seen in your own eyes, everyone can't believe their eyes.

If the operation of Liu Shang is compared to this time, the operation of Wangling, Ye Mao, who has just been praised.

I am afraid that I can't even have a connection!

"My God, will n't it?"

"Liu Shang him is too god ?!!!"

"It's hard to imagine, just try to connect these utensils, the hand is unlikely."

"Can see Liu Shang, what is the weight?!"

"right now……"

"Looks like I really believe in Liu Shang, this kind of experiment can be closed," "

"Cough, the truth is true, it seems that Liu Shang closed his eyes and assembles the utensils."

"Hey, what kind of person said that there is a chemistry, I think it is Liu Shang."

Just when everyone stated, the face of the two people in Wangling and Ye Mao was also difficult to see.

There is a kind of sick feeling that is feeding a shit!

At the same time as Liu Shang, he didn't forget to solve everyone.

Share the key points and heart of this experiment.

"... this first step reaction does not require a catalyst."

"And the reaction rate is also very fast."

"When the benzene anhydride solid is dissolved in the n-butanol liquid, the reaction has been completed."

"At this time, the conversion rate of benzene anhydride is almost 100% ..."

"The true difficult point of this experiment is in the second step."

"This step is slow, and it is necessary to perform at higher temperatures and sulfuric acid catalyst."

"And, this reaction is a reversible reaction."

"If it is improper handling, it will complete the product rate is extremely low, that is, the failure we often say."

Said, Liu Shang still didn't forget the reagent bottle that Wangling and Ye Mao did, and they were typical.

This is, but also two hands with the hands of the box, the face is sinking to the extreme.

Liu Shang did not pay attention to them, and he said on the side of the experiment.

"Technical crafts of this esterification reaction, the requirements for details are very demanding."

"If the reaction temperature is too high, such as more than 180 °, the product will hydrolyzate under acidic conditions."

"And the temperature is too low or the concentration of the base is too high, it is prone to saponification or emulsion ..."

With Liu Shang's side experiment, I have begun to have a quick and seriously recorded a classmate.

"... and the unique experimental process I just conducted is to add excess neutral ethanol to our reaction stock solution."

"There are two purposes to do this."

"One, it is to promote our reaction in the direction of the formation of esters."

"When accelerating the rate of reaction, the purity and production of esters are also increased."

"Second, it is to use too much ethanol to be used as a dehydrating agent."

"Under normal pressure, the alcohol is formed into a binary azeotrope with water, which can be evaporated to remove excess water ..."

"Just said, the reaction of our bisteogene is reactive in reversible balance."

"Removing moisture can cause the reaction to do it as we expect."

"But, like it is in two, it is manually, manually removing mode, is very efficient."

"This also led to the low product rate, it became a failure product value below the purified cost!"

......

Finally, Liu Shang's experimental product was perfectly released, surrounded by everyone, amazed, and took photos.

Liu Shang also came to the washing pool, and the sponge that was thrown there before the block was taken.

When you wash your hands, I don't forget to say: "Although this experiment is simple, it is very representative."

"Ten years ago, this esterification reaction method on the class is still okay."

"But today, today, when you look at it, you will have a very short and shortcomings."

"The two learned from the third school. If you follow the textbooks and teachers to teach you, don't think about your brains."

"Without your own doubts and flexible use."

"Then, even if you finish reading a doctor, just a degree certificate."

"you!!!!!"

After listening to his words, Wangling and Ye Mao still pressed, and finally heated.

At this time, the front of the laboratory suddenly came from applause.

Everyone looked, I saw Fang Xingguo, sitting there on the chair, constantly applauding.

It is also full of joy and appreciation in the eyes.

I didn't pay attention to the laboratory that Fang Xingguo came into the laboratory due to too much attention.

"Fang teacher?"

"Fang teacher ..."

At this time, Wangling and Ye Mao were silly eyes. When I changed it again, I got back to their knowledge, Dynasty, Zi Zhi, so many people.

And Fang Xingguo did not pay attention to them, directly to the experimental table, take the reagent bottle of Liu Shang produced in front of you.

"it is good!"

"Okay!"

"It is really worthy of Xu Tiande's old dean personally taught."

"On the education of the book, Xu Tiande, the old dean, really strong, too much, and it is really pleasing!"

"If all teachers can have Liu Shangyi's behalf, learn from the past, and cultivated students."

"What is our country? !!!"

Said, Fang Xingguo came to Liu Shang's nearby.

"Liu Shang, you really didn't let me down, and I also gave me a fertile surprise."

"To tell you, your undergraduate experimentation is that it does not come to me."

"And I broke the rules this time, grabbed this semester class, just to see if your kid has other teachers to praise your general ?!"

"Liu Shang, I learned it carefully."

"English and mathematics are all praise, full level, this professional class is more exclusive."

"If you have an idea of ​​the post, I remember to come to me at any time."

"Xu Tiande's old dean has worked hard, I will take a cheap and pick it up."

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