
การแตกตัวของกรด-เบส pHของสารละลาย
Authored by Jureerat Singsombat
Chemistry
11th Grade
Used 8+ times

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23 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ka=[CH3COO-][H3O+]
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ค่าคงที่การแตกตัวของน้ำ หมายถึงข้อใด
[H3O+][OH-]
[OH-]
[H3O+]
[H3O+]/[OH-]
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
NH3(aq)+H2O(l) <==> NH4+(aq)+OH-(aq) ค่าคงที่การแตกตัวของแอมโมเนีย คือข้อใด
Kb=[NH3]/[NH4+][OH-]
Kb=[NH4+][OH-]
Kb=[NH4+][OH-]/[NH3]
Kb=[NH3][H2O]/[NH4+][OH-]
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
ถ้าสารละลายโพแทสเซียมไฮดรอกไซด์ (KOH) ซึ่งเป็นเบสแก่ เข้มข้น 0.5 mol/L จะแตกตัวให้ OH- เข้มข้นกี่ mol/L
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
สารละลายแบเรียมไฮดรอกไซด์ (Ba(OH)2) เข้มข้น 0.25 M ซึ่งเป็นเบสแก่ จะแตกตัวให้ OH- เท่าใด
0.10 mol/L
0.25 mol/L
0.50 mol/L
1.00 mol/L
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
กรดอ่อนชนิดหนึ่งมีความเข้มข้น 0.3 mol/L แตกตัวให้ H3O+ เท่าใด (Ka= 3x10-5)
6x10-6
3x103
9x10-3
3x10-3
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
เบสอ่อนมีความเข้มข้น 1 mol/L แตกตัวให้ OH- เข้มข้น 0.05 mol/L ร้อยละการแตกตัวคิดเป็นเท่าใด
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