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5 Sketeh Ac10k 64 e < h 1ua dm+; c F~a$ ,n ae foxl- gxk/2X+/l b, fex = ~X2 _ 6x-4...

Question

5 Sketeh Ac10k 64 e < h 1ua dm+; c F~a$ ,n ae foxl- gxk/2X+/l b, fex = ~X2 _ 6x-4

5 Sketeh Ac10k 64 e < h 1ua dm+; c F~a$ ,n ae foxl- gxk/2X+/l b, fex = ~X2 _ 6x-4



Answers

If $\frac{{ }^{n} P_{r}}{120}=\frac{{ }^{n} C_{r}}{5}$, then $r$ is (a) 4 (b) 5 (c) 24 (d) 600

So we have these ions and were asked for equilibrium, constant values. And we go to table 16 4 and we don't find, uh, well, we find these ions all on the product side of the reactions that are given in that table. Uh, I don't find a k a value for this substance, but I find a k B. And that is the K B for the contra. Get base of this substance period in, uh, this is thedc injure. Get acid. Now for any pair of weak acid and conjugal base who are weak base and congregate acid, the product of K a times K B equals K W. So from the K B, I can calculate the value of decay k A for the congregate acid. Namely, this is the contra get acid of the substance for which this is three K B 6.7 times 10 to the minus six. This is the conjugal base of formic acid. That's the form eight I on so we can calculate with the found the K A in the table for formic acid. And so, for its Contra kit base, we can calculate the K B from two k W. This is not just true for any asset in any base, but any pair of weak acid in its congregate base or a weak base and its contra get acid has to be a pair of consequence or it's not true. 5.5 times 10 to the minus 11 No. 5.6. I'm sorry. Ah, and we find phenol and a k A for phenol. But this is the federal eight I on this is it's conjugal base notice when one K is very small on the other. K is somewhat larger. Uh, relatively large K relatively small, OK, weak, weak, us Very weak. Weak acids have stronger congregate basis and vice versa.

And so for party for you can educate week as it be based. There we have formula is okay. A multiply cavey is equal to care. So here k A is equal to get up. No divided by caving by putting the Cuban values one point zero multiply 10 raised to the power minus 14, divided by 1.5. Multiply 10 rest of the power minus three music too. 6.71 to 19 raised to the power minus six for Oh C five h five and it was it solution for what be K B is equal to kw. Divided by K A. Is equal to 1.0 Multiply 10 raised to the power minus 14, divided by 1.8 months at night and recipe for minus four. You were too. 5.6 multiplied injuries to people over minus 11. Foolish C H 02 negative. One part. See gaby. Easy to J. W. Uh is equal to 1.0 multiplied. 10. Dress to discover minus 14. Divided by 1.1 to play tenders with your power minus 10. Music went to one multiplied and listen to power. He's 14 4, C six and supply of carnage

Let's find the value of N given that. And plus one, c. 4 is too And -1. P two Is same as the ratio 25- one. Now, later by the NPR formula NPR is in factorial by end minus our factory Into our factory. So N plus one seaport will be endless. One factorial divided by And plus 1 -4 factorial into four factorial and that divided by NPR formalize and factorial by n minus R factorial. So it will be in -1 factorial divided by N -1 -2. That isn't -3 factorial. When that value is 25 x one which is 25 and this is n minus three factorial. I can cancel here and what you get is N plus one factorial divided by four factorial into n minus one factorial is equal to 25. Now you can write and plus one factorial as N plus one into ending to end minus one factorial by the records, the relation and this one into an into and minus one factorial is nothing but endless one factory. So when I replace that, I'll get beginning in place one into any two and minus one factorial divided by Four factorial into N -1 factorial is equal to 25. So we can cancel and -1 factorial and you can cross multiply four factorial and four factories basically 24. So it's just 2014-25. Please don't multiply and waste time in following sporadic equation. You can easily see the Value of N is 24 and 24 clearly satisfies this because this is the product of two consecutive national numbers and this is also the product of two consecutive National numbers obviously and should be 24. So the answer is 24.

In this problem, C six at fight OHH will react with C2 at five I in presence of and hide US C two At five or edge to give the product ID C six H five Or C two H 5. So according to the option, option is correct option. Age, correct answer for this problem. I hope you understand the reaction of this problem.


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