8. Answer any FOUR questions. (32 marks) (a) (i) Define buffer solution. (ii) Calculate the pOH er 200 cm3 of solution. (b) (i) Define the electrical energy and the mechanical energy. (ii) Calculate the heat of combustion of butane gas (C4H10) if its heat of formation is -124 kJ mol-1.The Heats of formation of CO2 (g) and H2O(l) are -395 kJ mol-1 and -287 kJ mol-1, respectively. (c) Write down the complete equations of the following equations. (i) CH3-CH2-COONa + NaOH → ? (ii) CH3-CH2-OH 2O3 ? (iv) CH3-CH2-Cl + KOH ethanol ? (d) (i)What happens when ozonized oxygen is passed into ethane in chloroform and the product is decomposed by water? (ii) What happens when propene is passed into cold dilute potassium permanganate solution? (iii) What happens when addition of hydrogen bromide to propene. (iv) What happens when ethyl chloride is heated with alcoholic solution of KOH. (e) Give an account on the manufacture of sodium by Down process. (f) Describe the laboratory preparation of iodine with a suitable diagram. (g) 6.5 g of a mixture of sodium chloride and anhydrous sodium carbonate were made up to 500 cm3 of aqueous solution. 25cm3 of this solution required 20 cm3 of 0.104M sulphuric acid for neutralization. Calculate the percentage by mass of sodium chloride in the mixture.(C =12,O =16,Na =32). (h) Discuss the extraction of lead
post_id | 64,174,835 |
---|---|
author | wonyan |
permlink | koh-chem |
category | pso |
json_metadata | {"format":"markdown","tags":["pso"],"app":"steemit\/0.1"} |
created | 2018-10-13 13:09:12 |
last_update | 2018-10-13 13:09:12 |
depth | 0 |
children | 0 |
net_rshares | 185,937,764,562 |
last_payout | 2018-10-20 13:09:12 |
cashout_time | 1969-12-31 23:59:59 |
total_payout_value | 0.187 SBD |
curator_payout_value | 0.004 SBD |
pending_payout_value | 0.000 SBD |
promoted | 0.000 SBD |
body_length | 1,529 |
author_reputation | 74,702,189,892 |
root_title | "koh chem" |
beneficiaries | [] |
max_accepted_payout | 1,000,000.000 SBD |
percent_steem_dollars | 10,000 |
author_curate_reward | "" |
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thienduc | 0 | 297,381,244 | 50% | ||
lianbloog | 0 | 179,308,822 | 50% | ||
thurrein | 0 | 2,694,509,238 | 100% | ||
thureintun | 0 | 543,604,981 | 100% | ||
eizazanaing | 0 | 523,170,474 | 100% | ||
gyika | 0 | 531,804,465 | 100% | ||
khayephyu | 0 | 520,164,915 | 100% | ||
lemareg | 0 | 226,235,716 | 50% | ||
linkha | 0 | 531,812,876 | 100% | ||
airnavy81 | 0 | 521,720,836 | 100% | ||
airron | 0 | 520,297,911 | 100% | ||
sanaungmoe | 0 | 521,378,642 | 100% | ||
kyarlay | 0 | 520,484,722 | 100% | ||
lwinlwin | 0 | 520,164,921 | 100% | ||
yeyene | 0 | 523,244,781 | 100% | ||
kagyi87 | 0 | 522,561,039 | 100% | ||
lkhant773 | 0 | 520,600,132 | 100% | ||
ngelay38 | 0 | 520,495,061 | 100% | ||
eilayy | 0 | 520,238,491 | 100% | ||
thuyalay17 | 0 | 522,482,255 | 100% | ||
eithuzarnaing | 0 | 522,106,381 | 100% | ||
laynge88 | 0 | 522,332,712 | 100% | ||
josephno | 0 | 522,182,499 | 100% | ||
soegyi | 0 | 522,108,765 | 100% | ||
doegyi | 0 | 523,477,036 | 100% | ||
thuthuzar | 0 | 522,070,735 | 100% | ||
layphyu18 | 0 | 522,000,672 | 100% | ||
moezaw2 | 0 | 521,958,355 | 100% | ||
pepu204 | 0 | 521,842,418 | 100% | ||
bokyaw | 0 | 521,994,500 | 100% | ||
chitwiine | 0 | 521,880,473 | 100% | ||
winewiine | 0 | 521,880,497 | 100% | ||
mawaung | 0 | 521,808,651 | 100% | ||
yekyaw | 0 | 521,814,760 | 100% | ||
aungkhant191 | 0 | 521,734,452 | 100% | ||
kyawthaung | 0 | 521,817,293 | 100% | ||
sinma129 | 0 | 521,734,619 | 100% | ||
thuzar868 | 0 | 521,734,619 | 100% | ||
thunaing | 0 | 521,768,451 | 100% | ||
kyargyi | 0 | 521,772,640 | 100% | ||
phyulay | 0 | 521,686,697 | 100% | ||
aungko118 | 0 | 522,856,404 | 100% | ||
aungzin45 | 0 | 522,973,324 | 100% | ||
bobbysossorr | 0 | 523,014,763 | 100% | ||
chitchit557 | 0 | 522,832,381 | 100% | ||
gyizaw | 0 | 522,899,999 | 100% | ||
gange6 | 0 | 522,832,288 | 100% | ||
gyinay | 0 | 522,794,223 | 100% | ||
gyimaw | 0 | 522,800,163 | 100% | ||
khaingkyaw | 0 | 522,771,088 | 100% | ||
khantko130 | 0 | 520,512,478 | 100% | ||
khinwint | 0 | 522,512,533 | 100% | ||
kokhant141 | 0 | 522,821,416 | 100% | ||
kyawaung121 | 0 | 522,838,068 | 100% | ||
kyawbo | 0 | 523,308,254 | 100% | ||
laybyay | 0 | 520,512,475 | 100% | ||
luwai | 0 | 522,592,675 | 100% | ||
nayye | 0 | 522,368,160 | 100% | ||
myintmyat460 | 0 | 522,325,897 | 100% | ||
thuya | 0 | 520,176,703 | 100% | ||
wonyan | 0 | 531,816,998 | 100% | ||
moemyint766 | 0 | 520,520,976 | 100% | ||
nayzwe | 0 | 522,299,828 | 100% | ||
nayang460 | 0 | 522,743,927 | 100% | ||
nganga285 | 0 | 522,801,173 | 100% | ||
saloneo | 0 | 521,514,700 | 100% | ||
sanyati510 | 0 | 522,367,480 | 100% | ||
sofiajoe | 0 | 522,608,650 | 100% | ||
stearjohn | 0 | 521,051,408 | 100% | ||
bengun | 0 | 522,755,463 | 100% | ||
stearjack | 0 | 522,921,457 | 100% | ||
speroken | 0 | 522,745,864 | 100% | ||
wailaa | 0 | 522,202,967 | 100% | ||
yeaung147 | 0 | 521,507,765 | 100% | ||
zagwe | 0 | 521,473,936 | 100% | ||
yeko983 | 0 | 521,469,636 | 100% | ||
moelwin71 | 0 | 523,270,294 | 100% | ||
jhonsep | 0 | 522,286,468 | 100% | ||
sophialay | 0 | 523,125,777 | 100% | ||
jealeon | 0 | 523,092,697 | 100% | ||
santhwe | 0 | 522,905,947 | 100% | ||
sthinzar | 0 | 523,350,617 | 100% | ||
myo.sandi | 0 | 523,359,077 | 100% | ||
aungkyaw57 | 0 | 522,704,503 | 100% | ||
konaw34 | 0 | 522,638,588 | 100% | ||
khinlay4 | 0 | 522,784,990 | 100% | ||
zarzar78 | 0 | 521,298,046 | 100% | ||
zinyaw89 | 0 | 522,674,248 | 100% | ||
thaw.zin | 0 | 520,521,060 | 100% | ||
ngelay76 | 0 | 522,672,913 | 100% | ||
moemyint34 | 0 | 522,634,620 | 100% | ||
koaung78 | 0 | 522,660,827 | 100% | ||
khinlay89 | 0 | 522,642,645 | 100% | ||
myosandi67 | 0 | 520,516,685 | 100% | ||
thuzar34 | 0 | 520,516,767 | 100% | ||
moezet67 | 0 | 522,664,465 | 100% | ||
kotoe94 | 0 | 520,516,767 | 100% | ||
soegyi2019 | 0 | 520,516,685 | 100% | ||
thedoubleace123 | 0 | 185,002,694 | 50% | ||
winko2019 | 0 | 520,516,520 | 100% | ||
nainglay | 0 | 520,516,767 | 100% | ||
theintun86 | 0 | 520,482,714 | 100% | ||
khinlay1 | 0 | 520,516,683 | 100% | ||
linmyatthu | 0 | 520,520,892 | 100% | ||
wuthmon | 0 | 520,520,809 | 100% | ||
shweyi | 0 | 520,520,892 | 100% | ||
moemyint1 | 0 | 520,525,267 | 100% | ||
eizar78 | 0 | 521,244,480 | 100% | ||
yati78 | 0 | 520,483,210 | 100% | ||
kyarphyu90 | 0 | 522,576,563 | 100% | ||
sanaung84 | 0 | 520,525,267 | 100% | ||
khinmoe23 | 0 | 520,529,642 | 100% | ||
yeye8924 | 0 | 520,521,058 | 100% | ||
nankhin390 | 0 | 520,525,267 | 100% | ||
khinzayar | 0 | 520,538,392 | 100% | ||
nanzayar | 0 | 520,525,267 | 100% | ||
pannu67 | 0 | 520,521,058 | 100% | ||
nizaw509 | 0 | 520,516,850 | 100% | ||
khinmaung68 | 0 | 520,487,248 | 100% | ||
khinaung637 | 0 | 520,516,683 | 100% | ||
tinmow291 | 0 | 522,663,103 | 100% | ||
phyuphyu260 | 0 | 520,330,976 | 100% | ||
mgmoe316 | 0 | 520,508,766 | 100% | ||
laymyint620 | 0 | 520,335,183 | 100% | ||
kyawthein420 | 0 | 520,533,599 | 100% | ||
thazin922 | 0 | 520,516,766 | 100% | ||
chitthuwai | 0 | 520,554,788 | 100% | ||
mgthawka9 | 0 | 520,516,683 | 100% | ||
laynge575 | 0 | 520,520,892 | 100% | ||
pawlay990 | 0 | 520,549,855 | 100% | ||
khinmaunglay47 | 0 | 520,516,271 | 100% | ||
laylaymyint6 | 0 | 520,529,308 | 100% | ||
khinmggyi8 | 0 | 520,516,353 | 100% | ||
kyawthu703 | 0 | 520,520,892 | 100% | ||
naythu562 | 0 | 520,516,432 | 100% | ||
puaung | 0 | 520,529,059 | 100% | ||
shweyeeoo34 | 0 | 520,499,543 | 100% | ||
yepook | 0 | 520,520,807 | 100% | ||
shweoo7 | 0 | 520,478,503 | 100% | ||
thuzarlin89 | 0 | 520,529,142 | 100% | ||
shwesu67 | 0 | 520,482,795 | 100% | ||
thanpu | 0 | 520,503,835 | 100% | ||
pepu478 | 0 | 520,491,205 | 100% | ||
chocho78 | 0 | 520,558,997 | 100% | ||
aungmyo78 | 0 | 520,478,924 | 100% | ||
naunglay78 | 0 | 520,529,473 | 100% | ||
khaingmyethar | 0 | 520,504,390 | 100% | ||
kyawkhaing313 | 0 | 520,444,696 | 100% | ||
pansandar | 0 | 520,482,791 | 100% | ||
aunglinko | 0 | 520,559,079 | 100% | ||
lsinelu | 0 | 520,482,623 | 100% | ||
mgtharlay | 0 | 520,499,291 | 100% | ||
khinmglay67 | 0 | 520,478,254 | 100% | ||
naythurein78 | 0 | 520,448,814 | 100% | ||
athelay | 0 | 520,524,190 | 100% | ||
mgkyaw879 | 0 | 520,524,932 | 100% | ||
marlwin724 | 0 | 520,486,584 | 100% | ||
laylaymu23 | 0 | 520,524,763 | 100% | ||
kyawkyawbo67 | 0 | 520,472,808 | 100% | ||
naytoe86 | 0 | 520,516,682 | 100% | ||
naymin642 | 0 | 520,516,515 | 100% | ||
nayaung662 | 0 | 520,486,493 | 100% | ||
khinmaung89 | 0 | 520,524,681 | 100% | ||
myintaung951 | 0 | 522,588,206 | 100% | ||
khinmglay89 | 0 | 522,705,914 | 100% | ||
yadanamaing | 0 | 522,580,390 | 100% | ||
thuthu12 | 0 | 520,520,639 | 100% | ||
moethuzar12 | 0 | 520,516,515 | 100% | ||
toelay56 | 0 | 520,491,039 | 100% | ||
maungmoe81 | 0 | 520,482,458 | 100% | ||
nyominlwin78 | 0 | 520,499,375 | 100% | ||
linmyatoo | 0 | 520,452,938 | 100% | ||
thetnaingoo7 | 0 | 520,494,917 | 100% | ||
thidawin87 | 0 | 520,482,627 | 100% | ||
hlahlawin49 | 0 | 520,524,516 | 100% | ||
tinmoelwin67 | 0 | 520,486,666 | 100% | ||
khinmoe34 | 0 | 520,448,567 | 100% | ||
htaykhin55 | 0 | 520,490,542 | 100% | ||
khinmuyar | 0 | 520,460,858 | 100% | ||
naingwin78 | 0 | 520,482,293 | 100% | ||
winnaing46 | 0 | 520,414,840 | 100% | ||
tinnaing78 | 0 | 520,444,614 | 100% | ||
malaymamu | 0 | 520,448,822 | 100% | ||
memepook | 0 | 520,406,515 | 100% | ||
ngapauk | 0 | 532,131,689 | 100% | ||
pauksa57 | 0 | 520,478,585 | 100% | ||
winmaw33 | 0 | 520,432,316 | 100% | ||
mamelai | 0 | 520,444,695 | 100% | ||
amelgyi | 0 | 520,436,275 | 100% | ||
aungkaungman | 0 | 532,124,956 | 100% | ||
zwepainghtet78 | 0 | 520,508,098 | 100% | ||
theingilwin54 | 0 | 520,470,243 | 100% | ||
tunmyatlin | 0 | 520,440,226 | 100% | ||
kyawhtutswe | 0 | 359,780,715 | 100% | ||
htunlin | 0 | 515,727,299 | 100% | ||
aunglinmyat | 0 | 482,080,977 | 100% | ||
moekyawkyaw56 | 0 | 520,478,411 | 100% | ||
tunaungkyaw68 | 0 | 532,094,489 | 100% | ||
saisaimaw | 0 | 520,520,306 | 100% | ||
myominkyaw | 0 | 520,511,570 | 100% | ||
heinminkyaw | 0 | 520,494,748 | 100% | ||
yanmyoaung56 | 0 | 520,422,836 | 100% | ||
aungkyawtun57 | 0 | 532,085,905 | 100% | ||
tunaungkyaw66 | 0 | 520,406,429 | 100% | ||
tunkyawaung | 0 | 533,504,407 | 100% | ||
mayshinmon | 0 | 521,846,808 | 100% | ||
naythuzaw | 0 | 533,543,374 | 100% | ||
aungthantmin | 0 | 533,428,028 | 100% | ||
aungmoe105 | 0 | 520,431,362 | 100% | ||
aung.toe | 0 | 533,514,071 | 100% | ||
aungsoe80 | 0 | 532,090,453 | 100% | ||
aunjgnoe | 0 | 520,410,795 | 100% | ||
aungkhantmin | 0 | 523,842,074 | 100% | ||
thanthanmu | 0 | 535,456,488 | 100% | ||
rajesh1000 | 0 | 176,397,613 | 50% | ||
napeng | 0 | 191,259,101 | 50% | ||
panthitsa782 | 0 | 535,033,300 | 100% | ||
khinmuyarchaw | 0 | 523,303,221 | 100% | ||
kothawpu | 0 | 531,817,082 | 100% | ||
khinmgsawwin | 0 | 520,193,608 | 100% | ||
nawzaw | 0 | 534,306,467 | 100% | ||
lwinlwinthant | 0 | 534,224,520 | 100% | ||
thinzarsoe | 0 | 522,544,330 | 100% | ||
kophyi | 0 | 534,267,707 | 100% | ||
khinsusunaing | 0 | 522,586,403 | 100% | ||
nayzwe5 | 0 | 534,185,865 | 100% | ||
naynaythurein | 0 | 522,590,802 | 100% | ||
nayyeeoo | 0 | 534,189,919 | 100% | ||
khinphyo | 0 | 520,188,905 | 100% | ||
khinlay | 0 | 522,003,652 | 100% | ||
khinhtay | 0 | 533,668,330 | 100% | ||
khinaye | 0 | 533,668,415 | 100% | ||
naytoelwin | 0 | 244,851,438 | 50% | ||
khinyupa | 0 | 533,746,120 | 100% | ||
dinekhinkhin | 0 | 533,664,195 | 100% | ||
chawkay | 0 | 247,821,170 | 50% | ||
soepyae791 | 0 | 533,703,019 | 100% | ||
strawlone | 0 | 533,651,875 | 100% | ||
jhonsmst | 0 | 522,012,920 | 100% | ||
pankar | 0 | 533,707,407 | 100% | ||
pwintphue | 0 | 533,656,859 | 100% | ||
natthar375 | 0 | 521,987,941 | 100% | ||
ntamee | 0 | 533,665,635 | 100% | ||
wahngu | 0 | 533,669,348 | 100% | ||
kyawhmue | 0 | 533,669,348 | 100% | ||
meechaw | 0 | 533,687,412 | 100% | ||
skaung | 0 | 533,657,028 | 100% | ||
kaungmin753 | 0 | 533,665,128 | 100% | ||
minsat207 | 0 | 533,669,432 | 100% | ||
thiri585 | 0 | 533,660,909 | 100% | ||
phyukhin043 | 0 | 533,051,701 | 100% | ||
trtfitnesstun | 0 | 533,033,530 | 100% | ||
aungkyawoo | 0 | 533,030,831 | 100% | ||
shwepookk | 0 | 533,041,875 | 100% | ||
moemoegyi | 0 | 521,377,157 | 100% | ||
linaung | 0 | 533,037,829 | 100% | ||
linhtut | 0 | 533,033,614 | 100% | ||
tinaunglay | 0 | 533,037,829 | 100% | ||
tinaunggyi | 0 | 521,385,582 | 100% | ||
tinaunglat | 0 | 533,041,959 | 100% | ||
khinlaynwe | 0 | 533,037,829 | 100% | ||
moelin | 0 | 521,381,621 | 100% | ||
moethin | 0 | 521,381,204 | 100% | ||
moehnin | 0 | 533,046,342 | 100% | ||
nayye7 | 0 | 533,046,174 | 100% | ||
hdu | 0 | 406,535,538 | 4% | ||
leizarchi | 0 | 521,317,969 | 100% | ||
santhawra | 0 | 532,964,368 | 100% | ||
khinlaymu | 0 | 532,956,277 | 100% | ||
khinsanwai | 0 | 520,834,745 | 100% | ||
phoephyu | 0 | 532,463,547 | 100% | ||
sansanwin | 0 | 532,472,053 | 100% | ||
khinmoewai | 0 | 532,467,437 | 100% | ||
khintook | 0 | 532,434,569 | 100% | ||
khintoke | 0 | 532,414,526 | 100% | ||
khinpoke | 0 | 520,783,071 | 100% | ||
thinthinmu | 0 | 532,418,989 | 100% | ||
thidaaye | 0 | 532,410,484 | 100% | ||
sanyatilin | 0 | 532,427,325 | 100% | ||
tinwintun | 0 | 532,418,905 | 100% | ||
sanyatii | 0 | 532,427,325 | 100% | ||
chitoonyo | 0 | 520,778,615 | 100% | ||
pannukhin | 0 | 532,418,905 | 100% | ||
lwintoe | 0 | 520,770,528 | 100% | ||
naylinoo8 | 0 | 520,766,734 | 100% | ||
thuzin | 0 | 520,770,693 | 100% | ||
soepyay | 0 | 532,418,905 | 100% | ||
khinthuzarphyo | 0 | 520,774,819 | 100% | ||
sunmintun | 0 | 520,782,906 | 100% | ||
khinlaynwenwe | 0 | 532,427,325 | 100% | ||
zarzarkhaing | 0 | 520,782,906 | 100% | ||
eithurein | 0 | 532,423,199 | 100% | ||
khinmgtoe | 0 | 520,786,867 | 100% | ||
thinthinphyo | 0 | 520,778,947 | 100% | ||
mayshinmo | 0 | 520,774,737 | 100% | ||
kyawkyawboo | 0 | 520,791,325 | 100% | ||
myatminn | 0 | 532,431,283 | 100% | ||
tinzarwintkyaw | 0 | 532,418,821 | 100% | ||
digearphyo | 0 | 520,779,942 | 100% | ||
winmoethat | 0 | 520,782,659 | 100% | ||
yeyepook | 0 | 532,431,367 | 100% | ||
maybarithaw | 0 | 520,788,361 | 100% | ||
thuzartunn | 0 | 532,432,297 | 100% | ||
htinkyaw | 0 | 520,780,025 | 100% | ||
linmyatoo8 | 0 | 532,428,255 | 100% | ||
minthantzin | 0 | 520,787,778 | 100% | ||
zinmoethu | 0 | 520,783,817 | 100% | ||
tharlat | 0 | 532,436,675 | 100% | ||
tharngelay | 0 | 520,783,982 | 100% | ||
mayiaye | 0 | 520,788,192 | 100% | ||
winsan | 0 | 520,792,236 | 100% | ||
nadihlaing | 0 | 520,779,941 | 100% | ||
mohmohlwin | 0 | 520,778,203 | 100% | ||
naychilwin | 0 | 520,769,448 | 100% | ||
htayhtayu | 0 | 532,413,508 | 100% | ||
santhein | 0 | 532,417,634 | 100% | ||
soesoepu | 0 | 532,421,759 | 100% | ||
kokyimya | 0 | 520,781,744 | 100% | ||
zareitun | 0 | 520,769,530 | 100% | ||
khinthuthu796 | 0 | 531,999,063 | 100% | ||
thawdardan | 0 | 520,359,248 | 100% | ||
htinpaw | 0 | 520,554,954 | 100% | ||
momolinn | 0 | 532,182,180 | 100% | ||
naylinthu | 0 | 532,194,469 | 100% | ||
nayzartun | 0 | 532,198,509 | 100% | ||
khinthaung | 0 | 520,546,708 | 100% | ||
mglinkha | 0 | 520,546,873 | 100% | ||
phyongwesoe | 0 | 520,550,830 | 100% | ||
nathtut | 0 | 520,542,499 | 100% | ||
htutkhaing | 0 | 520,542,666 | 100% | ||
htinlinkha | 0 | 520,555,123 | 100% | ||
kyawzinlin | 0 | 520,550,830 | 100% | ||
zinmyoo | 0 | 532,186,136 | 100% | ||
chogyi | 0 | 520,555,121 | 100% | ||
thawgyi | 0 | 520,571,874 | 100% | ||
tuntunlin | 0 | 520,584,162 | 100% | ||
thayhmyin | 0 | 520,559,247 | 100% | ||
naymintun | 0 | 520,554,958 | 100% | ||
wadyyun | 0 | 520,550,997 | 100% | ||
mgtharhco | 0 | 520,554,956 | 100% | ||
santhirimay | 0 | 520,554,954 | 100% | ||
khunchokha | 0 | 520,554,788 | 100% | ||
zwelinkha | 0 | 520,554,707 | 100% | ||
khinthetsar | 0 | 520,575,664 | 100% | ||
chitlayngenge | 0 | 532,186,136 | 100% | ||
tinmaung | 0 | 520,555,040 | 100% | ||
minminlat | 0 | 520,559,245 | 100% | ||
laylaymyint | 0 | 520,584,330 | 100% | ||
moezawko | 0 | 520,550,665 | 100% | ||
minthuhlaing | 0 | 532,190,345 | 100% | ||
khinaungmaw | 0 | 520,554,954 | 100% | ||
minminkhant | 0 | 532,198,677 | 100% | ||
khinmghtay | 0 | 520,559,249 | 100% | ||
athelayzar | 0 | 520,550,664 | 100% | ||
naythwinnyein | 0 | 520,550,664 | 100% | ||
tharzaw | 0 | 520,554,789 | 100% |