
វិញ្ញាសាទី2 ប្រឡងគ្រូបង្រៀនអនុវិទ្យាល័យ
Authored by លោកគ្រូ ចាន់វាស្នា
Chemistry
12th Grade
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46 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ផលគុណអ៊ីយ៉ុងកម្មនៃទឹក តាងដោយ
K
Kb
Ke
Ka
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ផលគុណអ៊ីយ៉ុងកម្មនៃទឹក តាងដោយ
K
Kb
Ke
Ka
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
រូបមន្ត pH គឺ
-logH3O+
-log[OH-]
log[OH-]
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
កត្តាដែលធ្វើឲ្យតម្លៃ Kw ប្រែប្រួលគឺ
កំហាប់
សម្ពាធ
សីតុណ្ហភាព
កាតាលីករ
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
សូលុយស្យុងអាស៊ីតស៊ុលផួរិច 0.00005M មានតម្លៃ pH ស្មើ
4
6
5
7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
សូលុយស្យុងអាស៊ីត H2SO4 មួយមានកំហាប់ H3O+ ស្មើ 2×10-4mol.L-1 ។
តើសូលុយស្យុងនេះមានតម្លៃ pH ស្មើប៉ុន្មាន ?
គេឲ្យ ៖ log2 = 0.3 , log4 = 0.6
3.7
2.4
4
3.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
សូលុយស្យុង A មួយមាន pH = 4 ។
សូលុយស្យុង A ជា
អាស៊ីត
បាស
ណឺត
គ្មានចម្លើយត្រឹមត្រូវ
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