Variety show: The school's male gods, and the days when they were classmates with female stars

Could it be that they told Shen Zhi?

The students were also taken aback.

Shen Zhi explained sodium dodecylbenzene sulfonate in too much detail.

There is no pause in between.

It's like having sodium dodecylbenzene sulfonate etched into my brain.

The stars looked at Shen Zhi in shock.

Didn't you miss the class just now?

Such a long word, Yang Mi just said a few words, he knew what the teacher was asking him?

Under the shocked gazes of everyone, Shen Zhi said lightly again, "Can I sit down?"

The teacher was taken aback, frowned, and glanced at the classmates around Shen Zhi, "When I ask questions, don't remind the classmates."

Hearing the teacher's words, Yang Mi immediately became unhappy.

She raised her hand and said, "Teacher! I just told him what dodecane sulfonic acid is. Is this also called a reminder?"

"I didn't say you remind Shen Zhi that you can't even remember the name of sodium dodecylbenzene sulfonate. I'm warning other students around Shen Zhi not to remind you." The teacher said, pushing his glasses , a trace of displeasure flashed in his eyes.

"No one reminded me at all! If you don't believe me, ask the 057 students around you!" Yang Mi said again.

She just can't understand this teacher.

From the very beginning there was a sneering attitude towards the stars.

Think our stars know nothing?

Now that Shen Zhi's answer came up, he said that a classmate reminded him? !

The teacher snorted coldly, "If you ask like this, no one will admit it."

Yang Mi's face turned red with anger, and Shen Zhi could understand her mood.

It's live at this time.

Yang Mi refuted the teacher without any scruples about her image.

He patted Yang Mi on the shoulder to signal her to stop talking.

Yang Mi looked at Shen Zhi puzzled, "But..."

Shen Zhi shook his head first, then turned to look at the teacher, "Hurry up and go to class."

Shen knew it was urging.

After all, the class has already started for a few minutes.

But the teacher kept nagging, saying things that were useless.

Shen Zhi has no time to talk to this teacher about such useless things.

He still wants to start experimenting.

"Hmph." The teacher snorted softly and continued to explain the content of this lesson.

Yang Mi looked at the teacher angrily, and said in a low voice with displeasure, "Why don't you refute."

Shen Zhi shrugged, "What's the use of refutation, do you think this teacher's attitude seems to accept refutation?"

"Okay, students, now we need to complete the synthesis and hydrolysis of polyacrylamide, write the principle in the notebook, and get the instruments and medicines according to the textbook."

The teacher's voice fell.

The students began to flip through the textbooks, looking for equipment and medicines.

The stars are indeed at a loss.

This is their first chemistry experiment class, and they don't know much about many instruments.

The medicine is okay, you can see the name from the bottle.

Just when the stars were busy flipping through the book, following the equipment written in the book, they began to study how to use it.

Shen Zhi has already started.

Instruments: constant temperature water bath, boiling water bath, beaker, measuring cylinder, stirring rod, platform scale.

Drugs: acryloyl, money persulfate, sodium hydroxide.

Shen Zhi first weighed the mass of the beaker and stirring rod on the platform scale, and then added 2g of acrylamide and 18mL of water into the beaker to make a 10% acrylamide solution.

Then, in a constant temperature water bath, [-]% money persulfate solution was added to initiate the polyaddition of acrylamide.

During the polyaddition process, stir slowly and observe the change of solution viscosity.

Shen Zhi didn't need to look at these things, but he knew what kind of changes would happen.

After half an hour, stop heating, and the product is polyacrylamide.

Then Shen Zhi started to do hydrolysis.

At this time, the students have just started the experiment.

Only the stars understand how to get the equipment.

The teacher looked down at the textbook.

Only the audience watching the live broadcast noticed Shen Zhi's actions.

"Damn it? Shen knows that this is the end of the polyaddition experiment?

"Just wait for the polyaddition reaction?"

"Have you started the water (ceae) solution experiment? Why is he so fast?"

"Everyone knows chemistry..."

"Fortunately, I know a little bit, otherwise I don't know what Shen Zhi is doing."

"Other students just started to heat up the acrylic, Shen Zhi is already over?"

"Already started to make the next one!"

in a few minutes

"Fuck? The hydrolysis is also finished?"

"It's less than 5 minutes!"

"It took 5 minutes to complete the polyaddition and hydrolysis, and finally wait for the result!"

Shen Zhi's every move was watched by the audience.

Just when the audience was shocked.

Suddenly there was a stern voice.

"Student Shen Zhi! Why don't you do synthesis and hydrolysis well with fatty alcohol sodium sulfate?!"

Shen Zhi turned his head and saw that the teacher came over at some point.

Putting her waist down, she looked at him with a serious expression.

Shen Zhi pointed to the acrylamide that was being heated.

"there."

The teacher was taken aback, and looked at the liquid in the beaker in shock.

Shen Zhi actually made it this far? !

Looking at other people, they are still doing it step by step according to the textbook, and they are only half done.

The rest of the stars are just getting started.

At this time, the students also noticed the movement here.

"What? Shen Zhi is all ready?"

"No way, why is he so fast?!"

"Look! Shen Zhi hasn't even opened his textbook!"

"Doesn't he have to follow the textbook?"

"How proficient it is to do this step so quickly!"

"No, it's just about doing it fast. Is the ratio right?"

"That's right! Those ratios, Shen Zhi, haven't even read the book, how could they be correct!"

? ? ? ?

The stars were also slightly shocked.

They didn't notice Shen Zhi's movements at all.

When looking through the book to find the steps, Shen knew that he was ready.

The teacher squinted at the liquid in the beaker.

With a soft snort, "The experiment was done very quickly, acryloyl, persulfate, sodium hydroxide

The teacher said, picked up the stirring rod, and watched the liquid in the beaker gradually become viscous.

This time, this degree of viscosity...

The teacher's fingers holding the stirring rod froze immediately.

The proportions are exactly right!

, water, it is not as simple as adding together indiscriminately, it needs a certain proportion. "

"How long has it been heated?"

Shen Zhi glanced at the phone.

"13 minutes."

The teacher's expression froze.

That's right!

After all, the teacher is a teacher. She has brought many classes of students and done countless experiments on the synthesis of polyacrylamide. How could she not understand how viscous the polyacrylamide was heated during this time.

Look at the teacher's expression.

The students were also dumbfounded.

Could it be that there is no problem with Shen Zhi's ratio? ! ?

a

Chapter 238 Did Shen Zhi think of something?

Shen Zhi didn't even open the book, so he even knew the ratio? !

The teacher seemed dissatisfied, and continued to ask, "What about the synthetic formula?"

Shen Zhi did not write the equation.

But he was in no hurry.

I saw Shen Zhi turning his head and asking Xing Xing calmly, "Have you brought pens and paper?"

The stars shook their heads.

He turned to ask other students.

A classmate handed the pen and paper to Shen Zhi in a daze.

Shen Zhi spread the paper on the table, picked up the pen, and without thinking about it, wrote down the synthetic formula in his mind in a chic way.

nch2—ch.

The teacher was taken aback again.

This