ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · what is the ph...

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Page 1: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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1. ����"��������� A , B , C , D (�� E ���*+� ����� �,�ก���-�.��/ก�� -���������0ก��.�1�����(��

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A B C D E

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Page 2: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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3. �0 �����ก��(.�0ก��(�ก��+ -7������3���"���0����,��-��� ก. KNO3 (�� HBr BC�0 -7��� ��ก������ (ก, �. HCN (�� H2S BC�0 -7��� ��ก������ �,��

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Page 3: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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Page 4: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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3. ��ก�ก�����ก"���.3�� ������������3.����"�-Q�ก�����ก�/��"�(��+(�.0�/��� -7�ก�.���� /� ���E1F�ก�. R /���� � ���� �0�P�/��

ก. HF(aq) + H2O(l) → H3O+(aq) + F-(aq)

�. CN-(aq) + H2O(l) → HCN(aq) + OH-(aq)

*. HSO4-(aq) + H2O(l) → H3O

+(aq) + SO42-(aq)

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0. H2S(aq) + H2O(l) → H3O+(aq) + HS-(aq)

ก. H2O(l) + CH3COO-(aq) → CH3COOH (aq) + OH-(aq)

�. HBr(aq) + NH3(aq) → NH4Br(aq) 888888888888888888888888..888888888888888888888 888888888888888888888888888..888888888888888888 888888888888888888888888888..888888888888888888 888888888888888888888888888..888888888888888888 6. �������� NH4Cl -7�ก�. �,+��������� NaHS (���������� Na3PO4 -7� /� �0 �����ก��(�.0

-Q�ก��������+,�0������,��-���ก�/��"� ก. NH4

+ �. HS- *. PO4

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Page 5: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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7. �0 �����ก��(�.0ก�� -�����(-�0(��(N�Z�:(�.0*6,ก�.- /� �������,��-����������"� ก. ก�.*�� /���ก �. ก�.B��4[+��ก *. ก�.4�� �ก

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ก. H2S �. HSO3

- *. H2PO4

- 0. NH4

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ก. HPO42-

�. H2O *. CO3

2- 0. OH-

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Page 6: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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Page 7: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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4. M(OH)2 -7� /�(ก, ����������0 /���� ����� 0.2 mol/dm3 -����� 500 cm3 ��� OH- ก���� (��2�� ����"�3���-����� -7� 750 cm3 *+� �������0 OH- �� -7� �,�3.

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6. ก�. H2S �*,�*0���ก��(�ก��+ 2 *,� *�� Ka1 (�� Ka2 �,�ก�/ 1.1×10-7 (�� 1.3×10-13 ���"�.�/ �0 -���/ ���/*+� �������0������,�0 M 3���������

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Page 8: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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1. ��ก����0(�.0*,�*+� �������0 H3O

+ (�� OH- ��0�������� 5 ���. A , B , C , D (�� E 3����ก ���� ��*,�*+� �������0 H3O

+ (�� OH- �03��,�0+,�0 :������0��/;*+� -7�ก�.- /���0�������� *+� ����� (mol/dm3)��0 ��������

H3O+ OH-

*+� -7�ก�.- /� ��0��������

A 2.0×10-5

B 1.0×10-2

C 5.0×10-7

D 1.0×10-9

E 1.0×10-4

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H3O+ 3���������

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Page 9: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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4. ���.��.�����C�0 �����.�������� 20 ��.���-����� 1 cm3 2��3�����.��.�����.�������� HCl 2.0 mol/dm3 1 ��. �0�-3���"�-����� 5 dm3 �����������*+� �������0 H3O

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Page 10: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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Page 11: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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5. What is the molarity of a solution that has 450 grams of sodium chloride in 800 mL of water? 888888888888888888888888888..888888888888888888 888888888888888888888888..888888888888888888888 888888888888888888888888888..888888888888888888 888888888888888888888888..888888888888888888888 888888888888888888888888888..888888888888888888 6. What is the molarity of a solution that contains 100 grams of iron (II) nitrate in 2.4 liters of water? 888888888888888888888888888..888888888888888888 888888888888888888888888..8888888888888888888 888888888888888888888888888..888888888888888888 888888888888888888888888..888888888888888888888 888888888888888888888888888..888888888888888888 7. What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water? 888888888888888888888888888..888888888888888888 888888888888888888888888..888888888888888888888 888888888888888888888888888..888888888888888888 888888888888888888888888..888888888888888888888 888888888888888888888888888..888888888888888888 8. What is the pH of a solution that contains 25 moles of nitric acid dissolved in 5000 liters of water? 888888888888888888888888888..888888888888888888 888888888888888888888888..888888888888888888888 888888888888888888888888888..888888888888888888 888888888888888888888888..888888888888888888888 888888888888888888888888888..888888888888888888 9. What is the pH of a solution that contains 0.009 grams of hydrochloric acid in 100 mL of water? 888888888888888888888888888..888888888888888888 888888888888888888888888..888888888888888888888 888888888888888888888888888..888888888888888888 888888888888888888888888..888888888888888888888 888888888888888888888888888..888888888888888888

Page 12: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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Page 13: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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Page 14: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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Page 15: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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3. �0 �����ก��(�.0-Q�ก�����ก�� ก�. ก����,��-��� ก. KBr �. NaNO3 *. MgSO4 0. K2CO3 �. NaHSO4 �. CH3COONa �. CH3COONH4 B. CaCO3

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Page 16: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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Page 17: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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Page 18: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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Page 19: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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Page 20: ก ก ˇ ˆ ˙ ˝ 3 ˚˜ 32223 ˇ˜ ˜! ก# $% 5 ’(()ก˚˜+ 1 ,˝-. ˆ ... · What is the pH of a solution that contains 2.4 x 10-5 moles of hydrobromic acid in 0.5 L of water?

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8. I did a titration where it took 50 mL of 0.1 M hydrochloric acid to neutralize 500 mL of a base with unknown concentration. Using this titration information, what was the concentration of the base?

9. I did a titration where it took 25 mL of 5 M NaOH to neutralize 1000 mL of an acid with unknown

concentration. Using this information, what was the concentration of the acid?