Chapter 47 (2/2)
“Do we need to pour out the produced water into that graduated cylinder in the end?” Meng Ming asked Huang Qiao Yi as he pointed to the graduated cylinders on the referee table
“Yes, but the water’s purity will be exa Qiao Yi said “If the water isn’t pure, then it doesn’t matter how much you make”
All the rules were clear; both sides of the competition and the spectators had all understood the content of the competition At 10:15, the teacher forins now!”
“I’ll go get so Qiao Yi said, and ian to an to move almost simultaneously
The tables only had those 5 bottles of unknown fluids, there were no other reagents The reason for retrieving beakers and test tubes was to extract s to the resulting phenomena of the reaction, they would be able to identify the compositions
While the two assistants were choosing equipan to interfere with each other
“That girl’s responses are pretty fast, huh,” Sean said
Meng Ming replied, “Of course I hadn’t iined that your brother would be as fast as her”
“Ah, Thomas is a first year It looks like you two are probably around his age too!” Sean actually figured out their grades in an instant “You haven’t learned anything, yet you still dare to come and compete”
Meng Ming was soe? You’re already a fifth year, yet you have the nerve to be co here!”
The two of them didn’t move, but their mouths were nimble
“Alright,” Huang Qiao Yi rushed back carrying a bunch of beakers and test tubes, a large piece of label paper, pH test paper, and two test tube racks She hurriedly said, “Do it quickly!” Her spirits were quite high; she see out the real contents of these reagents “I’ll identify the should just watch”
In any case, Meng Ming didn’t kno to do anything, so he could only stand to the side and watch anxiously He even loudly stated to the opposing Sean, “I won’t act now, the first step will be completed by my assistant” He moved the chair to the side of the lab table and leisurely sat down, his hands provocatively crossed in front of his chest
Sean had just planned on ’s attitude
“You…” He placed the beaker in his hand down onto the table, and grabbed his own chair With a “kua”, he also sat down next to his lab table! “Thomas, you do the appraisal” —Sean wouldn’t act either!
Meng Ming didn’t continue speaking, and si across from him
Thus, the two appraisers nian their work
The assistants’ agile movements made the spectators hold their breaths The two of the theain Each time they finished one action, a label would be neatly stuck onto the glass apparatus; their movements were s Qiao Yi’s beakers, test tubes, and bottles hadchemical formulas stuck on them There were also many products from various reactions between the fluids Sos like precipitates On the other hand, Thoress!
“Brother…” Tholish
“Don’t askhadn’t ever spoken a single word, how could he speak to Thomas?
Thomas was rebuffed 2-3 ti to his brother, “Brother…it’s not that I can’t do it, but…”
“What exactly is wrong?” Hearing this, Sean could only turn around to look back at his lab table
“I,” Thomas picked up a beaker to show Sean The beaker had soles on the after each label is stuck on, the paper will get burned off I can’t remember which bottle is which at all…”
“What?!” Sean i was still in his previous sitting posture, and his smile—
Brilliant Blosso Arrow Every time you stick a label on, I burn it nobody can see my movements, hehe!
“Brother Meng Ming, I’, who had been observing the other side the whole time, finally turn around He stood up and looked at the test tubes filled with e bottles had labels that clearly indicated their compositions!
“It took quite a bit of ti Qiao Yi wiped off some sweat “I identified 4 bottles”
“What are they?” Meng Ming asked
1 is benzene (C6H6), 3 is aNO3), 10 is hydrobromic acid (HBr)
“What are all these…” Meng Ming was baffled
“It doesn’tQiao Yi was extremely focused “Look, when 1 co Qiao Yi picked up the tube with two layers to show Meng Ming “1 is pure benzene, and cannot be mixed ater, just like oil Benzene and water have absolutely no relationshi+p, so it can be said that 1 has absolutely no use in this experi chose it in vain”
“Why does that matter, doesn’t the opposite party also have this benzene? They can’t use it either…”
“But, look at these other bottles” Huang Qiao Yi continued to explain, “They’re chemical substances soluble in water We have to remove these chemicals”
“Basically, we just have to withdraw the water in these bottles, right?” Meng Ming said
“That’s not all I think that there’s aQiao Yi said “It’s not just limited to the water inside these bottles I discovered that soents produce water when combined! The method we need to use has to produce more water than present, then distill it to extract pure water”
Distillation—si up a solution to boil the water within into stea, the vapor would be condensed in another receptacle to form pure water
“No wonder this requires four hours,” Huang Qiao Yi sighed “Even with four hours, we need to ents 1, 3, 4, and 10 won’t last for long periods of ti who knohat kind of waste Then it would just become extremely troublesome”
“I understand” After hearing this, Meng Ming thought to himself that he had to act quickly “Then I’ll do the next part! But…” He turned around to look at the fifth reagent, bottle 9, that the teacher had chosen “What is 9?”
“I…I don’t know” Huang Qiao Yi had already swept through all the test tubes related to 9 “Fluid 9 didn’t have any clear, distinctive responses when ents I don’t knohat’s in there”
……
At that moment, the teacher at the referee chair was so’s side had deterent bottles so quickly But she secretly smiled to herself at her seat—
The reagents you guys chose earlier were too easy to identify, so I decided to deliberately s difficult Heh, bottle 9 contains pure water~
The current situation (Identification process used negligible volu)