This document summarizes key concepts about reactions in aqueous solutions including: 1. Polar substances like water are able to dissociate ionic compounds into ions when dissolved due to the unequal distribution of charge in polar bonds. 2. Substances that dissociate into ions when dissolved in water are electrolytes, while molecular compounds tend to be nonelectrolytes except for acids and bases. 3. Strong electrolytes include strong acids, strong bases, soluble ionic salts, and substances that conduct electricity when dissolved in water.

1. Topic 4:
Reactions in Aqueous Solution
Presented by: Logan

2. Polarity(Polar Substances)
This unequal distribution of
charge creates a polar bond
Due to the arrangement of polar
bonds in a water molecule, water
is described as a polar substance

3. Dissociation
Ionic compound
dissolves in water,
the individual ions
from the crystal are
separated. This
process is called
dissociation.

4. Substances that dissociate into ions when dissolved in
water are electrolytes.

5. Soluble ionic compounds tend to be electrolytes.
Molecular compounds tend to be nonelectrolytes, except for acids and
bases.

6. Strong Electrolytes Are…
• Strong acids
• Strong bases
• Soluble ionic salts
• If the salt doesn’t dissolve, it can’t conduct.

9. Molarity

10. Dilution

16. Acids: Substances that increase the concentration of H+ when dissolved in water.
Bases: Substances that increase the concentration of OH− when dissolved in water.

19. In acid-base reaction, one species acts as an acid and one species acts as a base.
Occasionally, the same substance performs both roles, as you will see later. When a
strong acid dissolves in water, the proton that is released is transferred to a water
molecule that acts as a proton acceptor or base

20. Titration

23. 滴定是必考题
1. 理论基础 计算 配平方程式 选择滴定方法
2. 自己配置标准溶液
3. 滴定开始 连续三组平衡试验 误差小于某个区间
4. 计算得出相关数据和浓度

25. Displacement Reaction

26. Q&A