Chemistry A/L question help plz

[Slesh]

1.meka sarala gataluwak.mata log gana danuma tikak adui. ea nisai me prashne awe.
mekai pH agaya 2.42 wu drawanayaka H+ sandranaya keeyada? mata log walin sulu karana widiya pennalama post karannako. methana log sulu kireema meter na.

2. HA -----> H+ + A-

arambaka mol 1

gathika
samthulitha mol 1- alpha alpha alpha

gathika
samathulitha c(1-alpha) c*alpha c*alpha
sandranaya


meke gathika samathulitha sandranaya c(1-alpha) ha c*alpha wenne kohomda?

kalaya wegayen gathawe ea nisa ikmanata help ekak dennaaaa.... dan nathnam bump please!!

 

[hancok]

1. hapoi. youtube search kalaanam hari lagu balana widiha

2. α kiyanne 1moldm-3 kin wigatanaya wena pramaanaya. ithin 1moldm-3 kin α yanawanam c moldm-3 kin cα wigatanaya wenne

 

[Slesh]

1. hapoi. youtube search kalaanam hari lagu balana widiha

2. α kiyanne 1moldm-3 kin wigatanaya wena pramaanaya. ithin 1moldm-3 kin α yanawanam c moldm-3 kin cα wigatanaya wenne

Thanks machan 2weni eka hari.man lagu balanna dannawa but me gaane lagu balana widiyai one specialy. puluwan nam kiyahan ko machan.

 

[harindugamlath]

BumP!!

 

[hancok]

Thanks machan 2weni eka hari.man lagu balanna dannawa but me gaane lagu balana widiyai one specialy. puluwan nam kiyahan ko machan.

dan mathaka na ban hariyatama. lagu pothak gaththoth hithala balala kiyanna puluwan. poddak hithala balahan [H+] kiyanne 10^(-2.42)

 

[Slesh]

machan 298K di pH agaya 2.42 nam ehi H+ sandranaya keeyada kiyala thama danganna one. eke equation eka pH = -lg[H+] ne.oken wisdanna mata one.log sulu kirime awlak thiyenne.

 

[Slesh]

dan mathaka na ban hariyatama. lagu pothak gaththoth hithala balala kiyanna puluwan. poddak hithala balahan [H+] kiyanne 10^(-2.42)

ow machan mata eka therenawa.10^(-2.42) thama kiyala. awla eka wisadanne kohomda? - thiyenakota ganne kohomada? log potha man gawa thiyenawa.uba balanna one mokadda kiyahan man balala kiyannam. kohmahari help karahanko hirawela inne...

 

[daffny]

me prashneta aramka sandranayak wath wigatana niyathayak wath ona nane,,, ahanne kelinma [H+] (H+ wala sandranaya)

pH = log (10) [H+] = 2.42
[H+] = 10 ^ (-2.42)
= 3.8 * 10 ^ (-3)

 

[peter001]

1.meka sarala gataluwak.mata log gana danuma tikak adui. ea nisai me prashne awe.
mekai pH agaya 2.42 wu drawanayaka H+ sandranaya keeyada? mata log walin sulu karana widiya pennalama post karannako. methana log sulu kireema meter na.

2. HA -----> H+ + A-

arambaka mol 1

gathika
samthulitha mol 1- alpha alpha alpha

gathika
samathulitha c(1-alpha) c*alpha c*alpha
sandranaya


meke gathika samathulitha sandranaya c(1-alpha) ha c*alpha wenne kohomda?

kalaya wegayen gathawe ea nisa ikmanata help ekak dennaaaa.... dan nathnam bump please!!

1. pH=-log[H+]

2.42=-log[H+]

-2.42=log[H+]

[H+]=10^-2.42

=10^3.10^-2.42 .10^-3

=10^0.58.10^-3

So antilog 0.58=3.80

[H+]=3.80x10^-3

 

[Slesh]

1. pH=-log[H+]

2.42=-log[H+]

-2.42=log[H+]

[H+]=10^-2.42

=10^3.10^-2.42 .10^-3

=10^0.58.10^-3

So antilog 0.58=3.80

[H+]=3.80x10^-3

Thanks machan... mata me red lines deke karala thiyana de thama karaganna bari.ethana mokadda kale kiyala pahadili karannako machan.

 

[peter001]

Thanks machan... mata me red lines deke karala thiyana de thama karaganna bari.ethana mokadda kale kiyala pahadili karannako machan.

machan 10^-2.42 antilog balanna bari nisa eka dana karaganna one, (rina wala antilog balanna ba)

eka nisa athin 10^3 daala wenasak nowenna 10^-3 kuth athen daanawa,

Ita passe 10^3.10^-2.42 wenama sulu karanawa 10^0.58

10^-3 wenama tiyagannawa

dan 10^0.58 dana nisa antilog balanna puluwan

eka nisa 3.80x10^-3

 

[Slesh]

machan 10^-2.42 antilog balanna bari nisa eka dana karaganna one, (rina wala antilog balanna ba)

eka nisa athin 10^3 daala wenasak nowenna 10^-3 kuth athen daanawa,

Ita passe 10^3.10^-2.42 wenama sulu karanawa 10^0.58

10^-3 wenama tiyagannawa

dan 10^0.58 dana nisa antilog balanna puluwan

eka nisa 3.80x10^-3

K machan..but thama awl.. 10^3 ma damme ai wena ekak danna barida? anika 10^0.58 ganna log baluwe kohomada?kohoma unath thama - agyak thiyenawane mata sulu kirime ethana thawa tikak pahadili karannako ; othana red line eka sulu karana hati. mata poduwe hama ganakatama set wenna tharaha nathuwa mekata answer ekak dennako machan.

 

[peter001]

K machan..but thama awl.. 10^3 ma damme ai wena ekak danna barida? anika 10^3.10 kiyanne mokadda?10^3 ne damme?mata sulu kirime ethana thawa tikak pahadili karannako...othana red line ekath awl. mata poduwe hama ganakatama set wenna tharaha nathuwa mekata answer ekak dennako machan.

10^3 damme machan (3-2.42=+0.58) adu unama ena answer eka dana(+) nisa

10ye wena onema balayak danna puluwan 2.42 ekka sulu unama dana(+) answer ekak enawanm

saamamyen 2.42<3 (ekeiyanne e thiyena ganata ilaga wadima number) eka thama saamanyen ganne eg: ( -3.45 thiyenawanm api ganne 10^4)

red line eke thiyenne 10^3 x 10^-2.42 = 10^(3-2.42)=10^0.58

 

[Slesh]

10^3 damme machan (3-2.42=+0.58) adu unama ena answer eka dana(+) nisa

10ye wena onema balayak danna puluwan 2.42 ekka sulu unama dana(+) answer ekak enawanm

saamamyen 2.42<3 (ekeiyanne e thiyena ganata ilaga wadima number) eka thama saamanyen ganne eg: ( -3.45 thiyenawanm api ganne 10^4)

red line eke thiyenne 10^3 x 10^-2.42 = 10^(3-2.42)=10^0.58

kk wade meter ambo godak thanks machan ah anthimata mekath kiyannako, oke ai machan antilog balanne mulin log balanna one nadda? nathnan log a wala x = y nam x = a wala y kiyala gannawa kiyanne log baluwa kiyana ekada?

 

[peter001]

kk wade meter ambo godak thanks machan ah anthimata mekath kiyannako, oke ai machan antilog balanne mulin log balanna one nadda? nathnan log a wala x = y nam x = a wala y kiyala gannawa kiyanne log baluwa kiyana ekada?

pH=-log[H+] ne, pH agaya dannawanm [H+] hoyanna one, ethakota RHS wala tiyena log iwath kara ganna one, ekata depaththema antilog ganna one

RHS wala tiyena rina(-) lakuna LHS walata daala depaththema antilog gaththoth
RHS wala [H+] withrai ithuru wenne, ethkota ekata answer eka enawa

 

[Slesh]

pH=-log[H+] ne, pH agaya dannawanm [H+] hoyanna one, ethakota RHS wala tiyena log iwath kara ganna one, ekata depaththema antilog ganna one

RHS wala tiyena rina(-) lakuna LHS walata daala depaththema antilog gaththoth
RHS wala [H+] withrai ithuru wenne, ethkota ekata answer eka enawa

hari hari dan theruna k machan Thank you very much!!!!! bohoma pin.sahena wela othana hirawela hitiye issarahata yanna baruwa.ela

 

[mottaya]

mewwa mathaka naa pute

 

[hancok]

hafoi. mehemada A/L karanne.
dawas 7 kata issella ph purudu wene

 

[Slesh]

hafoi. mehemada A/L karanne.
dawas 7 kata issella ph purudu wene

ane mata uba gana dukai bn

 

[hancok]

bump bump