Learning Demon Cultivation System

However, Shi Yang raised his eyebrows and smiled again, in line with his big face and crescent eyes, he smiled with a little obscenity in his devilish nature: "Oh, do you still need someone's tutoring for such a simple experiment? Let's do a difficult one, shall we? "

Shen Yiyun gritted his teeth again.

You haven't taken the first degree yet.

Are you starting to look down on me?

"Then, how about this..." Shen Yiyun endured his anger and took off the goggles and gloves, "Student Shi Yang, come and show us."

"This..." Shi Yang was a little embarrassed, and frowned, "It's too simple, I don't know the level..."

Seeing his cheap look, Shen Yiyun pinched the table angrily: "I...I...I didn't think it was very simple."

"Really?" Seeing this, Shi Yang immediately took over the gloves and goggles, "Then let me show you?"

In fact, he still has half a sentence, "Ji Dayan Er is this?"

Hard to hold back.

Although he wanted to show the charm of a strong chemical man, he also felt that it was not good to step on people like this.

In the strange atmosphere, Shi Yang was armed and came to the stage.

Once he started the experiment, the flesh on his face rippling with excitement: "Look, half a point will be deducted and I will lose."

"Please." Shen Yiyun stood opposite and stared at him.

If you don't believe me, I'll kill you.

Seeing that Li Zheng couldn't persuade him anymore, he had no choice but to move to Shen Yiyun's side and said in a very low voice.

"Senior sister, my brother is not very good at talking. I believe he didn't intend to offend. It's just that once he enters the experimental environment, he can't control himself and behaves a little exaggerated."

"It's all right." Shen Yiyun raised his arms and let out a long breath.

At this moment, he glanced at Li Zheng again, and the more he looked at him, the more pleasing he was.

They are also juniors. Although this one doesn't look like a good student, he is very good.

She asked kindly, "I'm too lazy to care about him, how is your experimental foundation?"

"I have no foundation, I only know that the alcohol lamp cannot be blown, but must be covered." Li Zheng nodded shamelessly, "Although he is second in theory, he still feels that he may not be able to enter the provincial team. It all depends on the guidance of the senior."

"Jijing came second in the preliminary round, already much better than me." Shen Yiyun waved his fist to encourage him, "Come on, try to get recommended."

Li Zheng declined humbly as before: "Hey, I don't dare to think too far. It's true to work hard to enter the provincial team."

"Relax, I will tutor you for three days, and the training camp will be enough."

"Three...Three days?" Li Zheng was overjoyed, but he used his emotional intelligence to decline, "Is it too late for my senior's studies?"

Shen Yiyun blinked quickly a few times, and said with a smirk: "Don't worry, teaching you, it's easier than working overtime in the laboratory~ I don't lose money~ I will also be a teaching assistant for the training camp and the Golden Autumn Camp~ I can fish for a long time~"

Li Zheng inquired: "Speaking of working overtime in the laboratory, you must be very tired, right?"

"Oh my... I'm busy every night until after ten o'clock... Even this professor thinks we get off work early, so let me tell you a real story..." Shen Yiyun said happily, "Because our tutor It was too ruthless, a brother couldn’t take it anymore, he wrote a report letter to the dean, saying that he oppressed us and had to experiment until late at night every day, and then the dean found out, he was very angry, and called our supervisor, probably That's what it said—"

Shen Yiyun pretended to be the dean's respected person, and reprimanded in a dignified manner: "Oh, what's going on, Lao Yang, how can you order the students like this? You must let them go home early, before 11 o'clock!"

Immediately afterwards, she took another step, imitating the submissive manner of her tutor: "No, Dean...I let them go back at 10 o'clock."

After Shen Yiyun finished speaking, he looked expectantly at Li Zheng.

Chapter 133 The essence of chemistry is...

Only then did Li Zheng realize that the joke was over.

So where's the joke...

"Ah... Isn't it funny?" Shen Yiyun scratched his head and smiled foolishly, "This is probably a stalk that only people in the Chemical Academy can understand."

"No, no, it's quite funny. If I knew what the dean and mentor are like, I must have burst out laughing."

"Yes, yes, the dean is a real overtime madman. Senior brother is equivalent to finding someone with a hundred steps to report fifty steps."

"Hahaha...that's how it is." Li Zheng forced a smile, and then said, "The meme itself is more difficult to get, but it's really interesting to talk about it, you will definitely look better than the current Huadan when you go to act."

"Ah, ah..." Shen Yiyun blushed again, "It's just... that art comes from life~"

On the opposite side, Shi Yang pinched the dropper, as if he was about to bleed.

He listened to the two whispering like mosquitoes.

It just doesn't feel right.

Isn't this a field where chemical prowess is respected?

Sister Chemistry, don't be fooled by this guy who looks like a scumbag.

Look at me here, look at me here.

However, Shen Yiyun and Li Zheng chatted more and more passionately, and couldn't help acting out more Huayuan jokes, covering their faces and laughing from time to time.

Shi Yang couldn't bear it any longer, so he said in a deep voice, "Then shall I start?"

When Shen Yiyun heard this, his originally smiling face was instantly covered with a layer of frost.

"Well, please."

Shi Yang gritted his teeth.

Really changed face?

No big sister.

I will save you with my chemical strength!

Shi Yang became so ruthless that he didn't even look at the principles and procedures of the experiment, so he started his performance.

"Preparation and titration of coumarin-3-carboxylic acid, Shi Yang."

As he said, he unscrewed a dark reagent bottle (salicylaldehyde), dipped the dropper into it to suck it up for a while, then picked up the measuring cylinder, dripped the solution in, repeated two quick repetitions, and then screwed on the reagent bottle, did not look at the graduated cylinder scale.

"Wait, points will be deducted." Shen Yiyun raised his hand and sneered, "Look at the rolled noodles—take 2 milliliters of salicylaldehyde, do you know how much you took?"

"2 milliliters." Shi Yang kept his eyes open and unscrewed the second reagent bottle (diethyl malonate).

Shen Yiyun's nose tightened, wishing to check immediately and kill his arrogance.

But as the second eldest sister of Yan, she always looks ashamed to be so penny-pinching.

Although Li Zheng is very good at observing words and expressions, he is not strong enough to see this layer. He just walked around to the test bench out of curiosity, and lay down on the table to stare at the scale.

2ml, exactly...

There used to be a legend that there was an elder sister who sold sugar, known as "Yizhuasure", how many catties she wanted, and she made a fool of herself, and it must be that much.

Now, he has personally witnessed the accuracy of Cobalt God.

At this moment, he turned his head to look at the man who took the reagent.

It seems that the whole person has an invisible chemical molecular aura.

This man, he is no longer Shi Yang.

He is the cobalt god.

at the same time--

[Student movement detected. 】

【Shi Yang: 27】

[Learning upper limit: 26. 】

【learning……】

[Student movement +0.1...]

[+0.1...]

Li Zheng stared.

He didn't close his eyes anymore, before he absorbed enough student movement, he didn't close his eyes anymore.

Now, the only reference for the student movement is Li Zheng himself.

It is 4.

As for Shi Yang, a dick, his luck was nearly 7 times that of his own.

These experimental talents of his are really the great luck needed by the times.

It's mine, it's mine, it's all mine!

Of course, stealing luck or something is just a joke.

For scholars, this is learning, brainstorming, and common improvement.

Since the system clearly states that it is learning, then Cobalt God's luck will not be reduced because of this.

Inside and outside, the luck of the whole country has increased out of thin air, and it is a good thing.

Li Zheng just stared at Shi Yang intently, then returned to Shen Yiyun's side.

"It's really 2 milliliters, exactly..." Li Zheng said softly.

"Uh..." Shen Yiyun said bitterly, "This...isn't too difficult, there was a brother three years ago...it's okay too."

On Shi Yang's side, once he started the experiment, he seemed to be unable to hear the person on the other side talking. In a blink of an eye, 2.4ml of diethyl malonate and 10ml of absolute ethanol were poured into a 50ml round bottom flask in turn.

In the middle, there are naturally many small tricks and small movements.

For example, when adding absolute ethanol, Cobalt God obviously slowed down the speed of adding, and at the same time quickly rotated the flask and poured it in a circle.

Obviously, this was intentional by Cobalt God.

But Li Zheng couldn't see it through.

I had no choice but to lean into the ear of my eldest sister: "Why..."

Before he could ask questions, Shen Yiyun replied: "When dropping the reagents before, it was inevitable that some of them would stick to the side of the bottle. He did this to wash down all the other ingredients on the side of the bottle with absolute ethanol. .”

Li Zheng let out a "huh" before realizing it.

These small details are impossible to write on the test questions.

Only masters who have really done a lot of experiments will naturally form some habits and skills.

This is just the beginning, and there must be many, many such little tricks.

Cobalt God, show off your student movement to the fullest.

On the opposite side, after Cobalt God prepared the solution, put the flask on the oil bath bracket, fixed it, then used a high-precision plastic syringe, took some piperidine, probed the needle into the bottle, and injected it carefully, the solution changed accordingly. yellow.

"Hmph..." Shen Yiyun suddenly smiled, but quickly stopped talking.

What did she see?

Li Zheng didn't know.

I even suspect that I don't know if I ask.

Well, then don't ask, just pretend to understand and hum.

"Humph."

Cobalt God didn't pay attention to the two of them at all, and took another tube of glacial acetic acid, hung his hand motionless on the beaker, and fixed it in the middle for a long time before dripping it in.

Different from the chic action before, these two drips are very cautious, presumably because they are afraid of getting on the bottle wall.

Chemical experiments have very strict requirements on the dosage. Most of the time, there is only one drop, and a little more or less will affect the reaction rate and reaction volume. In severe cases, unexpected and strange reactions may even occur, which will eventually lead to the failure of the experiment.

Take this question of preparing coumarin as an example, the final yield score is as high as 40 points.

For this question, the theoretical yield is 2.53 grams.

But that's just theory, the yield without loss of a single molecule.

In an environment like a university laboratory, under human manual operation conditions, the limit of yield is about 90% of the theoretical yield.

Therefore, when scoring, as long as the final yield is higher than 80%, it is a full score, 40 points.

70%, 35 points.