Hi, good morning, friends, before we take a test for the acid and alkaline chapter, friends, Please take a look at the following learning, video, okay, here, I will explain for the discussion of task 2, which you have shared the file in the WA group of each class, Now, mother. I will correct a few things, son, for number 2, Number 2, which is B, here, There is an error in writing the rank, So here it is explained that Oh. The noodle is 0.2. So here.

The correct one is two times 10 to the power of min.1, now, this should be 10 to the power of min 1. So the result here is 10 to the min 13 OK or 5 10 to the min 14, use that, son, yes. Then for the number 2C, Now, 2C, here, ah, I wrote down the concentration H, plus e2e. Sorry for this 2ea, yes, I wrote down. The concentration H plus. Is half a root 2 times 10 to the power of min 3 Now, here, Mother, There is a mistake in writing ^ also, child., So, yesterday, I, just copied this, but I haven't raised it yet. G is right, The result is half root 2 times 10.

To the power of min 11, not min 3 here, play three later, it's the same as this one. Now it should be raised here. So 10 ^ 3 is reduced. So the end result is 10 to the power of min 11 Okay so pay attention, son, Yes, there are two corrections for numbers, 2B and 2E.

For, writing the rank of the program, The steps are correct, The steps are correct, only in Pep ang, He said, OK, So please pay attention. Then for the mother, I will give examples of sample questions to add or enrich my friends in the acid and. Base chapter., Please, pay, close attention, If there is a model question like this, friends, you should be able to answer OK, Here, friends, are asked to write down or order the strength of the acid, Now, this is the boot, give the title, yes, the order of the strength of acid and base and acid and base, Please pay close attention, here. It is given table. K, Now for the strength of our acids and bases. There is one concept that the bigger, the Hi, the bigger, the value of Kai or KB, the stronger.

It is, The stronger the acid or base. Nature is okay, it's, good to hold it, If the Aka is bigger, the acid is stronger, If the KB is bigger, then the base is stronger. Now, Let's.

Look at the example question, number 1., Look at the table, From, the following acids, there are acids, The indictment is based on the table above, It can be concluded that the order of acid strength is OK. That means we check the order of acid strength. Hi, If for example, friends are asked to sort from the strongest acid, it. Means they are ordered from the largest. So, let's check for the expert's options. Yes, HL is stronger than he-he, it's stronger than Henna.

Let's. Look at 9.6 times 10 to the rank of min 7, We compare it to 1.8 times 10 to the power of min 5, which is bigger. 1.8 times 10 to the rank of min 5. Now, This is a smaller rank, right, son, So he is bigger or stronger, He means more strong, HAE, nah That means this is wrong. Yes. Number a-should.

Be HAE is stronger than HL because Anger has bigger rights. Only bigger than HL Okay Then for B. Hbro4 aura B is weaker, but we check the HP that's just that, Now the cellphone is the rank is mint. Two, Min 5 is bigger. Which. One is bigger, The cellphone Now means this is stronger than the hell.

HAE Well means this is wrong. Then the Che is weaker than HK Now. We check HL 10 to the rank of min 7, 9.6 times 10 to the rank of min 7, compared to HK Now, that's, true, yes, He is smaller, He said, It means he is weaker.

In fact, Now we compare it to HC 10 to the rank. Of min 2., he is the strongest among these three, but yes, The answer is c, later, please try the paint friends who are in the village of Mayan. E, Does. He fit the concept?. There are two answers, if no, yes, it means the answer is Had, C, yes, let's. Look at the one, AA is bigger, Men8 is bigger than HG, put, ah, wrong, yes, son, yes, The price should be stronger than the one, because he is bigger than the one.

Ha, then the HE who eh AB is smaller than HL's. Hp is mint two as well as min7 now it's clear. That it's, not right that HE should be stronger because he said, the value is much bigger than HL.

This is ambiguous, But the 2 is much bigger than minus 71 Okay, So the answer for number one example, question 1 is c, Okay friends, Hold on to this kid, yes, The bigger, the key value, ,, the stronger, the acid, the greater, the KB value, the stronger, the language value., which is small in value based on the rank and number in front of it Okay, so that's, an addition for acid and base material. Now Hopefully. Friends can understand it better I'm, good again, Thank you and good morning, The blessings of the palace.