 Okay. Okay. Okay. Okay. That's smaller. It's that. It has a lot of sugar. It's the 80 grams. And it's tiny. And it's tiny. Can you see the age? No age to have it. Yeah. No age to have it. Let's start. I think there's something right there. Alpha is alpha right. What kind of power is alpha? Alpha is not alpha. I'm asking alpha. C is A. Alpha must be 10 power minus 7 by 25. Alpha minus 7 by 25. Yes. Alpha is 4. Okay. This is C. This is C1 minus alpha. Yes. Okay. If I want to write concentration on H plus divided by concentration of H2 initial given like C alpha by C. Can I write like this? C as 1 square. Initial concentration or any addition this one. So, S plus is N to the power minus 7 and concentration of order each equals to question is 5 by 10. So, this is 1 by 8 and 10 to the power minus 9. 9 by 8 into 10 to the power minus 9. You can remember this. Okay. Now, next is initial concentration given K again. Next is, let's say if I give you one question. Next is Okay. Can I write this over? Okay. Can you prove that 3 more are as here? 2.4. 2.3. Next question, how much order should be added to into one liter of the solution to double its H? To double its H. So, it is 1 by 8 to double its H. So, that is 2.4. Okay. How much order should be added to double its H? 2.4. 2.4. 2.4. 2.4. 2.4. 3.4. 3.4. 2.4. 3.4. 4.4. 5.4. 6.4. 7.4. 8.4. 9.4. 9.4. 10.4. 10.4. 10.4. 10.4. 11.4. 11.4. 15.4. No. 1.19. What? 1.19. Yes, 1.19. 1.19. Anything else? Hey, how do you solve this? On the rules of H. So, solve it like this. H plus. Very good. Sir, 1.19. 1.19. Okay. Initial concentration pass. Thank you. And initial volume pass. So, this for this. So, 2.4. Next question for this. How much water should be added? 1.8. How? 2.4. 2.4. 2.4. 1.8. Yes, 2.5. 1.8. 1.8. 1.8. 1.8. 1.8. 1.8. 1.8. 1.8. 1.8. 1.8. 1.8. Why? Okay. Initial part is very weird. I said this. This is the first step. 1.8. 1.8. 1.8. 1.8. 1.8. 1.8. 1.8. 2.8. 1.8. 2.4. Then, 1.8. 1.2. So I got the bottom plug. In case of... Yes. Then water is there. Then water is there. This is in the water. This is in the water. So, must be there, must be in the water. Minus k shift. 100. Yeah. Then fine. What is the ratio? 2. Okay. What would actually be... Minus k shift. Because... 30 percent... 30 percent. Is it 34 percent? Then for minus k, that's small alpha. And it's minus k. Yeah. Alpha originally was... 10 to the power minus 7. So, it's 525... 55 to the power minus 7. So, it's 1610 to the power minus 7. I mean, 10 to the power minus 7. Yeah. 1610 to the power minus 7. Yes. 610 to the power minus 7. So, one second. So, one second. One second. So, you can do 44 percent of the separation. What about 20 percent? What do you even do? Sir, even if your k w is equal to... Sir, this is 72 percent. H plus 2. H plus 2. Oh, my God. Yeah. So, 10 to the power minus 7 plus x into x. Is that what you do? Hmm. Okay. Okay. The difference divided by each. No separation. No separation. So, the separation is 40. How do you do that? This is 70, right? Yes. What can I say for this one? Sir, is it 1.610? Sir, is it 70? Yes Sir. Sir, it can be turned from 0.65 to 500. No, it's 611, okay. I'm not sure exactly. Yeah, you can say it. 0.610 to the power minus 7. 1.610 to the power minus 7. 1.610 to the power minus 7. You are... H plus 5. 1.610 to the power minus 7. 1.610 to the power minus 7. I want it. Sir, what is root 5 minus 1, you tell me what that is? 1.2. What is that? 6. 6. 6. 5.6. 6. 6. I want 6. 5.6. Same thing, yeah. Same thing, yeah. Initial concentration of X2, it's not recommended. You can consider it as 7.2. Okay. Then it can be, now it's 38 percent. 38 percent! Yes. Yes. Okay, you can go like this also. See, point 1 is here, point 6 is here. That point 3 means new alpha, point 2 is here. 38% now. People are 88, sir. People are 88, fine. Okay. Can you calculate pH of the solution? I just take log of 1.618. Log of 1.618? Yes, sir. Okay, in terms of log of 1.618, what's the answer? 7 minus 8.618. Okay, so answer is 6.8. Now, next question is... Okay, can you tell me... pH of extra rock, too strong acid, concentration of water is considered. Concentration of H plus from water is considered. Sir, can you repeat what? What do we have to do? H plus in case of... Okay, let's do one more question. Let me put it here. Right question. pH of 0.1 molar CS3CO over H. pH of 0.1 molar CS3CO over H. Since 3.7. So, 0.6. Is it 2.7? Yes, sir. 2.6. 2.7. 1.6. Okay, clear the rule, sir. 1.6. Okay, right? One second. In terms of C, in terms of C, K. So, one second. Is it right? Why? Tell me, H plus concentration of C and P does not... If it's strong acid, that concentration is less than 10 to the power of minus 6. It's there. Hey, solve it. Yes, sir. What you did in last question... Me that? Strong acid. Strong acid. Can you repeat it? Concentration is 10 to the power of minus 6. Less than 10 to the power of minus 6. It's just over water also. Disposition of ordinary additives. Sir, this is... C plus... The rule of C squared minus 4 K. You have to go all the way to the ground. Sir, how close was the answer? Was it like... Yes. Sine is wrong. Sir. Hey, you... It's minus. No, it's plus. I said it was plus. See, under what sign? Wait, under what sign? No, no, no. Take it by... Bharath, you should not make noise. Is it clear? Yes, sir. Yes, continue. Okay, solve it. Very good. Sir, do you think... C plus... S... Sir, this is log C plus of BKW... Concentration... Wait. You can find BK... S squared plus Cx minus K... Concentration... You have to solve that. Yeah. Do this. After that, you can write it down. You should... After you write it down. Sir, it's... Sir, it's... Okay, it's plus. Okay, 5, 2, 8. Is it fine? Yes. So... Yes. I have C... C squared plus 2... Is that it? Divide it in 5. Divide it in 5. Now this is very... S plus X... Okay. What is S plus X? C plus X. C plus C. Sir, it's basically without C squared. You do this. It is like minus C by 2. C minus C by 2. Now you will know the minus one. Okay? Plus... Under root of C squared plus 4KW. That's it. 5... That is C plus... This will come... C plus under root of C squared plus 4KW... Divide it in 5. Sir, why C minus that? What C minus? I think... I think it's the same. No. Why you are... Wait a minute. Wait a minute. Sir, when we have... Okay. Now, come to the previous question. H plus concentration is C S by C Y. Have you got the answer? Yes, sir. Okay. So... 2.85 is the biggest one. Everybody got it, sir. Yes. The biggest one. Okay. Any doubt on the first question? No, sir. Second one. For the second one... Then we get... Second one. K is... K is... 2 into 10 to the minus 5. 2 into 10 to the minus 5. Okay. 2 into 10 to the minus 5. Point 8 to the minus 5. Okay. Point 8. Why you have... You have negative alpha and negative 6. Sir, because... What is the gain? Sir, how do I... I just think very carefully. This is the gain. 2 into 10 to the minus 5. Fine. First, ignore alpha. After ignoring, calculate alpha. So, if I ignore this, what happens? What happens? So, we... Like if I take point 8 to the minus 5. I assume it's wrong. What? Okay. So, I have first thing and concentration. Then I ignore this value. So, I'll write something. Now, what is our K? Now, what is pH? pH is nothing but C of... I have this concentration is... C of 1. That makes minus 1 of this thing. Now, do the next question. Using the same method. Use? Yes. Now, we ignore the next thing. Because... I don't know. You can't ignore. You can't ignore. Always... Always, sir, neglect the alpha. See alpha. So, I can write... So, you can't neglect. You can't ignore. Alpha. Alpha. Yes. If I write... K is nothing but... K is nothing but... 10 to the power. See alpha is square. Alpha is 1 minus alpha. If I write alpha... What is C? 10 to the power minus 3 under root. Now, I can't ignore. 10 to the power minus... 10 to the power minus... 10 to the power minus... Yes. So, our concentration is wrong. We have... We have a concentration of alpha. So, you write the same method. No, it's too much. Yes. So, we have a concentration of alpha. Yes. So, we have a concentration of alpha. 10 to the power minus... Yes. 2.8 to the power minus 3 under root. Yes. In root... Yes. In root... Yes. In root 8 to the power minus 3. In root 8 to the power minus 1. No way. No way. Okay. Only quantity can be solved. One second, sir. Sir. Sir, 3.7. See. 3.8. See. 3.8. See. 3.8. See. 5.9. Okay. Okay. 5.9. Okay, okay. 150 to the power minus 1. One second, sir. One second, sir. One second. Okay. One second. Okay. Got it? Yeah. Got it? Okay. Yes. So, we have a concentration of alpha... 10 to the power minus 1. Yes. Yes. Then, what else? Just an airport response. Yes. Yes. So answer is 10 to the power minus 6, 10 to the power minus 6, 10 to the power minus 6 10 to the power minus 6, 10 to the power minus 6 You are never going to check your 3D work. It's fine. When you solve, just tell me the answer. Yeah, it's still there. It's still there. Sir, is it impossible? Huh? No problem. Is it impossible? Is it not? Why it's not possible? You can't. Hey, are we making it, sir? We are not. Yeah, yeah, got it. We are doing direction. We are not commenting on Px. In that question, we comment on Px. That Px will be done. What's the difference? It is not possible. Px is possible. Why do you always think that my contribution is always not possible? Sir, I think it's possible. Sir, I think it's possible. The root of 4.8 is 2.2. 4.8 is 2.2. 4.8 is 2.2. 4.8 is 2.2. 4.8 is 2.2. 4.8 is 2.2. Yeah, 4.8 is 2.2. It's a point. They can get 3.2. 1.2. 1.2. 1.2. 1.2. 1.2. 1.2. 1.2. 1.2. 1.2. 1.2.