To determine the molarity of NaOH by titrating the standard solution of 0.05M of oxalic acid

Pipetted out using a tenminal pipette. What are you standing still for this time? One to two drops of phenolphthalein indicator So today we are going to start experiment number three. One of the most important experiments in 11th Chemistry When you feel sleepy, you fall asleep. I speak two moles, three moles, right? I hear that I am a B solution for someone I'm just being selfish, that's all. So, you won't know the molarity of this solution, which is 0.05. You will have to find out the molarity of the second solution. What is unknown, what you don't know, I know But you have to find out the practical ones immediately. So, what is meant by titration? that the molarity of a solution will be given to you But you won't know the molarity of one And you will have to find out the molarity of this as well. Immediately after this titration We don't have any magic, how can you possibly tell just by looking? Yes, this is a 3 mol solution. So we can find it out What can we do with this? We can find out. Now, to find out how, you must look carefully. For this, we perform titration. So if anyone ever asks you what a titration means This is where the speaking takes place That a solution which exists is unknown to us And we know the molarity of the second one. So, using the molarity of the one whose molarity is known, what do we do with the molarity of the unknown solution? we find out, still that is called for titration titration Everyone will know what you mean by titration, okay. Alright, listen carefully to the aim of today's titration we are supposed to perform. to determine the molarity of the given sodium hydroxide I mean, you're asked to find out the molarity of sodium hydroxide, look at the beginning by titrating it against a standard solution of 0.05 mol/L oxalic acid Good, right? Oxalic acid. So, what is the molarity of oxalic acid given? 0.05 What? Anyway, meaning, is the molarity of sodium hydroxide given? No, it hasn't been stated, so determine it. In titration, what happens is that you know the molarity of one substance, and you have to find out the molarity of the other. For performing these practicals, we will need certain apparatus, which I will now explain one by one here. We will need burettes; whose requirement will be for the burette, stand, one white tile will be required where color observation is carried out, pipette, funnel, and two beakers are needed, in which the solution is provided. Now, what are the chemical requirements? In one, we have auxiliary acid, okay, which you can take 50–60 ml, it will be provided there, its molarity is known, it is 0.05. It applies to both; today we will use phenolphthalein indicator, which turns pink in the presence of base. That's what it does, which color does that, the pink color, so the entire game will be about this, okay, let's see, this reaction, all of you, this Look here, come on, now I'll pack the knob properly and fill the bidet. It says, fill up to 0 marks, okay? Pay close attention here. After filling, you need to remove the funnel. At this very point, you... You can fill this infinite space. When you open the nostril Look also in that one, just as it came in A.R. And the liquid filled up completely, even inside it. What should you do now? Adjust the zero mark to fit it. Adjust the zero mark to fit it properly. I have applied the Zero 5 Edge to the Lipstick. After his words That's your job, isn't it? Atlantic acid Who does it serve? Italic acid You... It cannot go beyond this. It often becomes necessary to clean the gears of this. What does it mean to "rinse" Ishi? If you've taken a single drop of this elixir You cannot dive into the depths of this and still remain untouched. This process must be carried out with absolute certainty. What do we do with it after rinsing? We throw it away. Then, if you read in your handbook afterwards So, 10 ml has to be pipetted out from inside the pipette. So in Pipits, there's a line here. If you've suspected Liquit up to this point So this is 10 ml. There is a way to catch pipits. The right-hand side of you This is a bulb with two fingers. You are right. Now, in this Quonique Fast, what should I do to make it work? Inga Light MEC joining As soon as the reaction is complete It will be colorless to light pink here. Which color will remain? Light pink So two drops will have to be added here for you Which drop? Two drops Bus enough Now completely to you this You will have to start titrating against the buretts. Exactly, you'll grab it from the right-hand side right here. Your It will stay on top of the knob. Could you please slightly open the knob? And what will you do titration against it? A little bit of swearing, that's me How are liquids becoming swears? It will move slightly, the liquid, and slightly Start adding one drop at a time and perform titration. How long have you been doing the titration? When you don't get the light pink color What color is not pink? Look, when I'm adding it here Color is coming, but it's disappearing. What's happening? But But it should be light pink color permanent Will the pink one run? No This This will go with light pink. If the nail turns pink That won't work. I understand your bass. Light pink chalr is coming my way 10.9 at You will need to bring light pink chalra. It will have to be brought again and again. How many times have you done such practicals now? It will have to be performed. Our reading is coming. Thousands upon thousands have to perform. If you have 2 constant readings It's not available then Now you're the one speaking Do not do this practically. Do And wash it thoroughly, please. What have you done? Wash, break it down, wash it again For Do it from the abdomen. And then what will you do? Be quiet. What else did you do then? What is Funnel Help to get it back on? Where will you fill it up to, zero mark? Will you please help me? Zero mark is there After bypassing this, you will start titrating. If the reading you received again reached up to 10.9 So I'll stop the practical right here. But if I get 11, then I'll have to perform again. 这么大，我得看看，伙计，我的阅读内容是什么 It was 10.93 or 11. It should come together in the third one. First, let's try this one big Join in the third one If I return today, I'll feel like coming back, I'll take the tan away, I'll remove the pipette, I'll reapply the titration. If I come back today, I'll feel like returning again; the return trip will be via train, and I'll book my ticket again. Come on, let's go. Initially, when I was starting the practical, I had zero zero in liquid, but he wrote zero zero and difference. If you subtract 10.9 from zero, you'll get minus 10.9, that's right. So, what will you fill in all three below? 10.9. Then look, it says CBR, what is written there? What is written? I'll make it clear, and that's because they're trying to deceive you. It's absurd because they're claiming it's yours in 0.0, and that's exactly what your Miller's been selling—whose sale are you referring to? Meaning, from this practical, you've been selling it. Did you do it? Did you do it? Because I knew about the one-eighth majority, right? Zero point zero five, the exact value of the auxiliary acetic acid, okay? Clear, everyone understood.