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1/nCO2=0,15--->nHCl=0,3câu 5 í
bạn ghi gì vậy ???
1/ ( như trên )
2/
Gọi y là hoá trị của KL A, x là hoá trị của KL B.=>V=160ml=0,16lit" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">
a, b lần lượt là n A và B.ta có:
4A+yO2−−>2A2Oy" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">4a+yO2−−>2A2Oy4a+yO2−−>2A2Oy
a……………………..a/2
4B+xO2−−−>2B2Ox" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">4B+xO2−−−>2B2Ox4B+xO2−−−>2B2Ox
b…………………………….b/2
ta có : Aa +Bb= 5.1 (1)
mhh oxit= a2.(2A+16y)+b2(2B+16y)=aA+8ay+Bb+8bx=13.1g" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">a2.(2A+16y)+b2(2B+16y)=aA+8ay+Bb+8bx=13.1ga2.(2A+16y)+b2(2B+16y)=aA+8ay+Bb+8bx=13.1g (2)
trừ (2) cho (1) => 8ay+ 8bx= 8 =>ay+bx= 0.1
A2Oy+yH2SO4−−−>A2(SO4)y+yH2O" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">A2Oy+yH2SO4−−−>A2(SO4)y+yH2OA2Oy+yH2SO4−−−>A2(SO4)y+yH2O
a/2………………ay/2
B2Ox+xH2SO4−−−>B2(SO4)x+xH2O" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">B2Ox+xH2SO4−−−>B2(SO4)x+xH2OB2Ox+xH2SO4−−−>B2(SO4)x+xH2O
b/2…………...bx/2
nH2SO4=12(ay+bx)=1.0,5=0,5mol" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">nH2SO4=12(ay+bx)=1.0,5=0,5molnH2SO4=12(ay+bx)=1.0,5=0,5mol
=>mctH2SO4=49g" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">=>mctH2SO4=49g=>mctH2SO4=49g
=>mddH2SO4=150g" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">=>mddH2SO4=200g=>mddH2SO4=200g
=>V=120ml=0,12lit" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">=>V=160ml=0,16lit=>V=160ml=0,16lit
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