تجربة درس المعايرة عملي طلاب التوجيهي

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Peace, mercy and blessings of Allah be upon you. Today I will explain the lesson of the equation in a laboratory. Where? A laboratory that I study in. Of course, the lesson of the equation is a new lesson added in our guide. So, we will explain it with strong acidity and strong base. On this occasion, I would like to thank the University of Al-Batra for its excellent situation with its students. And I would like to thank the chemistry department represented by its doctor, the head of the department, Dr. Abdulmano Tawaiq, and all the teaching staff. Thank you all.

Dear students, as we can see, we must know that chemicals are dangerous substances. Therefore, I hope that no one will try this in the experiment room even if the substances are available because they are dangerous substances. As we can see, I have HCL powder, which is a concentrated and unknown concentration. We will extract it through the calibration process. The benefit of this calibration is that I can extract any substance through a certain compound concentration.

So, I have the Hydroxyd sodium, which is the focus, 0.1 molar, which is the focus, and I have a beaker, a mixer, and a filter, so that I can run it easily.

and the "Sahaha" in Arabic and "Buret" in English. The numbers are here: 0, 1, 2, 3, 4. The measurement is up to 50 mm. 50 mm here and 0 mm here. What's the point of having a zero here?

When I fill it with the information material concentration, it must be filled with the information material concentration, whether it is a solid or a base. Today in our experiment, I will fill it with a base. And I will fill it to zero, which means that I filled 50 ml. Okay? 100% Now, through the calculation process, of course, the calculation process will not be fast, it will be a little slow.

Through the dilution process, the strong base starts to decrease gradually until I know how much of the material is missing. I present the amount of the material that I have and I show the concentration of the added material from the base. With the amount of the unknown acid concentration, which I will fill here.

Then, I use the pink color with the Fino Neftherine. The pink color is visible. I don't want it to be too dark. Why? Because I reached the excess stage.

So I don't want a stage of agreement, I want a stage to reach which is the end point or the point of equality. Okay? Inshallah, let's try now to work in the experiment.

As you can see, I have the NA watch base, which is the strong base. I will fill it here in front of you. And where do I want to fill it? I want to fill it with the surface. Of course, we must work in our experiment, when we work in our experiment, everything must be washed and clean, and 100% you are sure of it. Let's work now. We want to fill the strong base, as you can see.

Now, as we can see, I started filtering and cleaning. After filtering and cleaning, you need to close it. We closed it and I want to start filling it until I reach the zero stage. Now, I will start filling the strong base, NaOH, Hydroxyd Sodium. I started filling it until I reach the zero stage, which means I have filled 50 ml. Of course, I have a point, we call it the point of the condensation during the addition process.

During the addition process, my friends, if I look at it, I find that I am going to hit my eye 100% in this way. I find that the concentration is slightly more than zero. So what do I do at this moment? I want to try to reduce the base until I reach 100% concentration at zero. Okay? Come on, slowly, slowly. This is how I reached 100% zero. This is how I have currently filled 50 ml of sodium hydroxide.

Of course, I have the size of the sodium hydroxide and the concentration of the malium. Excellent! Now, since I have it, the experiment tells me in the book that we must be careful with the ingredients, because these are all strong acids and strong acids. We use them little by little, in our own way, with our eyes. Of course, I consider this to be the concentration of the malium, to get its concentration. Excellent!

Now let's start working slowly, I want to start filling this, it's called a mass, I want to fill it up to a limit, of course, it has 10 ml, but I want to fill it up to two levels, meaning I want to fill 20 ml. Okay, I'm walking now from the wheel slowly pulling the base with the HCL acid, okay, and here we filled it up.

Here, currently, it is 10 ml. You want to fill it, sir? Yes, I want to fill it with 20 ml. Of course, there are sizes of the mass you can choose. But the available one is 10 ml. Okay, friends, let's pay attention here. Until I filled this one, it is also 10 ml. This means that I filled a size of 20 ml of the pulp. What information do I have now? Come on, friends. Work with my students. May God be pleased with them.

Now, what information do I have? I have information about the size of the strong base and the size of the HCL. How much size did I put? I put 20 mm. Excellent! Now, we have an idea as a student, what will happen?

We must know that when we add strong acid with strong base, it will form salt + water from the known base. This will be an interaction of the types of interactions of the equation. Now I have to do something to show the equation or the point of the equation.

which we called the final point. So we have to calculate how many lines are there, approximately, which is equivalent to 3 or 4 lines. And here we add the denominator of the denominator.

Now, I will start to move the brush slowly until I get a transparent color. I will move the brush slowly until I get a pink color. The color is almost the same as the base color.

which is approximately 1 to 2 mil. But what about the color here? The color is a bit dark. My experience with this is almost wrong. Why? Because I want it to be clearer or more understandable than this, as we say in Arabic. Okay, so let's repeat our simple experiment. Simply, I can add a base again.

This is a base again, so we will try again. Of course, we will add little by little. Now, I will add the base that I added from here. I will reach it to zero. Okay, excellent. And this is at zero now, 100% at zero. Okay. If we add, let's say the amount of the... The acid is more than 20 ml, we can. Yes, it's normal. Let's say, it's up to you, whatever you want to know. Okay.

so that we can add a certain size with the increase. OK? OK. Now, what will I add? I will add the size of the line. Excellent. This is 10 mm. Let's add something closer to 20 mm. Let's add, for example, 40 mm.

This experiment has a very dark color, as we can see. I don't want it to be too dark. Why? Because I told you that if it was too dark, I would have reached the stage called the "failure stage". No, I don't want to pass the final stage, which is the "end point". No, I want to reach the "end point" stage by equating the stage.

As a student, you must register your information in the notes book. For example, you have a 0.1 molar concentration from the strong base and an unknown concentration from the HCL. You add the sizes to do the calculations and get the information concentration from your work. Okay, friends? 100%

I have a 40 ml of acid. I will add the bleach. I will add the bleach. I will add a few drops. Two or three drops. I added the bleach.

Without the light, the color won't change. Look at the color. The color is very dark, that's why I'm repeating my experiment. Now, I start to draw a little bit. I draw a little bit, and I move the pen slowly. 100% While drawing, I move slowly until I reach the end point.

Let's see, what is the color of the color? As you can see, the color is empty. So I take my measurement of how much I reduced the size of the base with the size of the ink. This is our simple experiment. Look at the difference between this color and this color.

This color is light and this color is dark, right? 100% So this stage is called the end point and this stage is called the crossing stage

Now, I have a point of convergence, which is the equation of OH ions from hydroxide, which is NaOH, with H3O ions, which is from strong acid. In this case, if these ions are equal, I call this stage the point of convergence. Let's be careful. Now, if we count our calculations,

In the whole lesson, we will take the topic of calculations, one will have the information of the concentration with its size, and the other will be the information of the concentration with its size, as you can see, when I did 40 miles here, the size was known, but the concentration is unknown.

I start doing the calculations to make the number of moles at this moment. The number of moles of H2S must be equal to the number of moles of HCl. In this case, I have a stage called the equilibrium stage. And after making the number of moles, I can get the concentration through the Mn/V law.

Stay tuned. May Allah give you a thousand good deeds. Peace be upon you.