Learning Demon Cultivation System

Page 135

"Even so..." Shen Yiyun supported the table with both hands, and asked unwillingly, "Why is it 0.78? Why?"

"Hmph." Shi Yang raised his eyes suddenly, the corners of his mouth slightly raised, "Feel."

"Aww..." Shen Yiyun dropped his glasses, almost swearing, "Can this be based on feeling?"

Li Zheng was caught in the middle, and he only felt that the atmosphere between the two of them was very terrifying, it seemed to be even more terrifying than the decisive battle on the top of the Forbidden City.

Even more terrifying.

He doesn't understand very well.

It's okay, feel free to ask.

"Well, I'm pretty good... Let me ask you a little bit." Li Zheng walked to the stage and picked up the piperidine reagent bottle, "Piperidine acts as a catalyst in this reaction, right?"

Shen Yiyun replied: "Yes... Normally, the volume ratio of piperidine to diethyl malonate should be 1:1. In conversion, in our reagent concentration, the volume ratio should be 1:10. That is, every 10 milliliters of diethyl malonate corresponds to 1 milliliter of piperidine."

"This is just the most conservative strategy." Shi Yang said with a smile, "Conservative, it is impossible to make a high yield."

Shen Yiyun stared at the white crystal in front of him and said: "That's the problem. Increasing the dose of piperidine can indeed increase the yield on the surface, but the alkalinity and carbanions will also increase accordingly, which will cause it to interfere with intermediate production. The ethyl coumarin-3-carboxylate further generates amides, which greatly reduces the yield."

"So, heating and reflowing should be fast." Shi Yang moved his fingers and sneered, "Compressing the standard one-and-a-half-hour heating process into one hour, you know, heating and refluxing is dynamic, internal pressure and reaction liquid level, time They are all changing, so it is impossible to achieve the fastest reaction rate only by using a conservative constant temperature, and dynamic adjustment is only possible if I keep observing all the time."

"This...is this also in your calculations?" Shen Yiyun was shocked, "I thought you were just rushing for time..."

"It's true that we are rushing for time, but it's not a calculation, it's a feeling." Shi Yang emphasized again.

"Feeling..." Shen Yiyun was a little incomprehensible, "Chemical experiments, how can you rely on feeling..."

"It's just that you haven't done enough."

"..." Shen Yiyun cursed secretly, pounding the table angrily.

I... haven't done enough?

After just one month of research... I was stuffed into the laboratory by my tutor... working 10 hours a day...

Is that not much?

For the first time, Shen Yiyun wanted to beat someone up.

In Li Zheng's vision, a quiet big sister is gradually evolving into a violent old sister.

But at the same time, Li Zheng was desperately absorbing the erupting academic spirit while Shi Yang was talking nonsense.

A really good chef does not follow the standard process in a formulaic way.

He will dynamically adjust the cooking method and the dosage of condiments according to the freshness of the ingredients, the fat and tenderness, the texture of the pot, the oil quality and other factors.

These adjustments are absolutely impossible to quantify.

It's a feeling, only a feeling!

Only a master chef who has been immersed for many years and is constantly striving for self-improvement, unwilling to fall into a certain easy and fixed process, and always thinking about constantly challenging himself, can cultivate the feeling.

By comparison...

Li Zheng looked at Shen Yiyun who was holding the table and panting.

Although the big sister is also a big boss who is one in a million.

But he was shackled by the heavy and repetitive work in the laboratory...

I gradually followed the process and gave up using my brain.

Enjoying the convenience brought by shortcuts, ignoring the growth accompanied by thorns.

Sister.

you.

already lost.

"That...that can't be so many..." Shen Yiyun stared at the crystal and said, "The biggest product loss of this experiment is that one of the steps must be washed with 50% ethanol, but at the same time, the ester will also be washed in ethanol. Dissolution... product loss at this step is unavoidable."

"Of course I know." Shi Yang walked to the wall step by step, and silently patted a small refrigerator, "People who sleep too much cannot see the morning sun."

Shen Yiyun glared for a moment: "Ethanol... has been frozen???"

Li Zheng struck with both palms.

Wonderful.

As the temperature decreases, the reaction will also slow down, but it will have little effect on the washing effect.

At the same time, it retains the precious ester to the greatest extent.

Wonderful.

"Fortunately, the freezing point of ethanol is low enough." Shi Yang raised his glasses, "Is there any problem, senior sister?"

Shen Yiyun gradually lowered his head, his eyes were empty: "No...no more."

This guy is only a sophomore in high school...

Is my national finance so worthless...

Undergraduate four years.

Graduate two years.

What the hell am I doing?

For more than a year, I worked 10 hours a day in the laboratory.

What the hell are you doing?

I from Ji Dahuayuan...

Is it so insignificant...

Just when she was on the verge of collapse, Li Zheng walked over in time.

"Shi Yang is indeed scary, but I believe that you, senior sister, must also be talented." Li Zheng sighed softly, "It's just that if you treat experiments as work, you will definitely lose interest, right?"

what.

Shen Yiyun groaned in his heart.

Yeah, I don't know when it will start.

I hate experimenting the most.

Hurry up and finish today's tasks.

All I can think about is eating and sleeping.

this is us.

A group of people known as research animals.

"I... I'm not worthy to teach you..." Shen Yiyun took off his eyes, lowered his head, and sighed a little lonely, "I'll go and tell the instructor, find a doctorate brother."

"No, Shi Yang is not an ordinary person. Even if the tutor comes by himself, I'm afraid he will suffer." Li Zheng said emotionally, "Senior sister, although he doesn't need you, but I need you, at least for a few days, take a rest, don't go I’m working in the lab, right here, start from the beginning, teach me bit by bit, let’s try to find the fun of chemistry together, isn’t that great?”

what.

Shen Yiyun was moved again.

If only you.

This is wonderful.

Only then did Shen Yiyun rub his face, put on his glasses, and tried his best to raise the dignity of the teacher.

"Student, I... I'm very strict." She said avoiding Li Zheng's gaze.

"It's not strict, what do I come to Ji University for?"

"Ambition." Shen Yiyun immediately turned to look at Shi Yang, and suddenly, his face was covered with a layer of frost, "I can't teach you, you go."

"???" Shi Yang, who was leaning against the refrigerator, resting his forehead with one palm, and posing as a chemical powerhouse POSS, almost fell down on the spot.

Damn why?

Don't girls yearn for the strong?

Am I not strong enough?

At this time, he looked at Li Zheng and Shen Yiyun who were together, packing up the experimental equipment.

Shi Yang suddenly realized.

It's motherhood!

Study the motherhood of the second eldest sister!

Take care of the motherhood of the weak!

You're right when you think about it, don't those popular male idols all look like soft-skinned, tender-fleshed babies?

Is there an idol who is a macho tough guy?

Oh shit.

Hello Li Zheng.

Pretending to be so good, it turned out to be a scumbag routine.

This... Is this fucking also in your calculation?

Chapter 136 I'm Not Humble

Li Zheng was caught between his senior sister and his brother, very anxious.

He calculates gross calculations.

Senior sisters must be respected. They can not only guide their studies, but also enhance their vitality during this period of leaving school.

On the other hand, the brother's student movement hasn't absorbed enough, so he can't let it go.

Seeing the completely misaligned eyes of the two, Li Zheng felt a little headache.

You people with low emotional intelligence are really troublesome.

Fortunately, now is an excellent opportunity to divert attention.

"Why don't we go have a meal first?" Li Zheng looked tentatively at the senior.

"The cafeteria is closed, but it's okay..." Shen Yiyun chuckled and threw off his white coat, "Let's go, senior sister will take you to the restaurant."

"Success, find someone who can issue invoices." Li Zheng also picked up his schoolbag.

"You don't need to bring your schoolbag, you will come back after eating." Shen Yiyun put his mobile phone on his back, waved his hand and said, "If you don't plan to come again, please take your schoolbag on your back."

Shi Yang sighed bitterly, so he had no choice but to walk to the table and pick up his schoolbag.

That's probably it.

Win the experiment.

I lost my life.

While carrying his schoolbag, he looked at the door reluctantly.

Shen Yiyun was looking at his watch, waiting for him to come out to lock the door.

Li Zheng was by her side, narrowing his eyes and glanced over, with a half-smile.

No one wanted to invite him to go with him.

Senior sister and brother, all abandoned him.

Shi Yang swallowed his bitterness, put his schoolbag on his back hard, and rolled the straps to the head.

Damn, society is so sinister.

What else has the friendship of using a piece of toilet paper.