The latest pH out of a sample off white vinegar was step three
Question 13. 76. Calculate the concentration of hydrogen ion in it. Answer: pH = – log10 [H3O + ] = – log10 = – pH = – 3.76 = \(\overline\).24 [H3O + ] = antilog \(\overline<4>\).24 = l.738 x 10 -4 [H3O + ] = 1.74.x 10 -4 M
Question 14. The ionisation constant of HF, HCOOH, HCN at 298 K are 6.8 x 10 -4 , 1.8 x 10 -4 and 4.8 x 10 -9 respectively. Calculate the ionisation constant of the corresponding conjugate base. Answer: 1. HF, conjugate base is F Kb = Kw/Ka = \(\frac<1>><6.8>>\) = l.47 x 10 -eleven = l.5 x 10 -11
Question 15. The brand new pH out-of 0.step one M provider out of cyanic acid (HCNO) are dos.34. (mehr …)
Ask Dr. NerdLove: Whenever we’re Only Members of the family, After that How does She Treat Me personally Particularly A boyfriend?
I came across a woman certain months ago who has got brilliant – there is certainly next to nothing I really don’t like from the her and we strike it off brilliantly. Once the she are outside of the nation much an such like i wouldn’t hook up usually thereby, after a few meets and you can talking usually from the cellular phone/text we ultimately slept together with her a few weeks ago.
She did not must harm me personally in the sense and you will very did not create a love nowadays. I was thinking it actually was a brush off and leftover convinced that was one.
The fresh strange matter was – she nonetheless talks to myself each and every day. She informs me I am comedy plus the just one just who will get the woman, she delivered me a photo out of a book conversation which have a guy she’d attempted to getting that have a year ago you to fell aside on account of her old boyfriend (in case I didn’t faith their story) and contains told me content in the their prior you to this lady has apparently told nobody else. To get frank I often feel a boyfriend in every but term. We flirt together from time to time and you can she appears chill inside, however, she still foretells me personally about how almost every other males was so you’re able to flirt with her (just before she informs me just how she does not want a love which have some one in addition they can get lost).
I am during the point today in which element of myself naively thinks her tale and you can dreams I can escape so it unusual buddy region. Had been it others I’d has walked away chances are however, I really like the woman. For the time being I’m able to perform the friend issue however, at some point I am gonna need are once more. Perhaps just what I am inquiring was – precisely what do you think is occurring here in fact it is around one pledge? (mehr …)