本课配套习题挑战模式1/5
单选题
难度系数:
1.在含有酚酞的0.1mol·L-1氨水中加入少量的NH4Cl晶体,则溶液颜色
A: 变蓝色 |
B: 变深 |
C: 变浅 |
D: 不变 |
一次做对,真牛!
+5奖励规则>
- 提示1:5rCo5rC05ZGI56Kx5oCn44CC
- 提示2:IOiLpeWQkeWFtuS4reWKoOWFpeWwkemHj+eahE5IPHN1Yj40PC9zdWI+Q2zmmbbkvZPvvIzogIPomZHlubPooaHnmoTnp7vliqjlr7nkuo7msKLmsKfmoLnnprvlrZDmtZPluqbnmoTlvbHlk43jgII=
- 答案:Qw==
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
本课配套习题挑战模式2/5
单选题
难度系数:
2.将0.lmol·L-1醋酸溶液加水稀释,下列说法正确的是
A: 溶液中c (H+)和c(OH-)都减小 |
B: 溶液中c (H+)增大 |
C: 醋酸电离平衡向左移动 |
D: 溶液的pH增大 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOW4uOa4qeS4i++8jGMoSDxzdXA+Kzwvc3VwPinCt2MoT0g8c3VwPu+8jTwvc3VwPinvvJ1LPHN1Yj5XPC9zdWI+
- 提示2:IOWKoOawtOeogOmHiu+8jOawouemu+WtkOiiq+eogOmHiu+8jOS9huawtOeahOeUteemu+WNtOato+WQkeenu+WKqOOAgg==
- 答案:RA==
5bi45rip5LiL77yMYyhIPHN1cD4rPC9zdXA+KcK3YyhPSDxzdXA+77yNPC9zdXA+Ke+8nUs8c3ViPlc8L3N1Yj7vvIzliqDmsLTnqIDph4rvvIxjKEg8c3VwPis8L3N1cD4p5YeP5bCR77yMYyhPSDxzdXA+77yNPC9zdXA+KSDlop7lpKfvvIzmja7nlLXnprvlubPooaHnp7vliqjljp/nkIbvvIzphovphbjnmoTnlLXnprvlubPooaHlkJHlj7Pnp7vliqjjgII=
本课配套习题挑战模式3/5
单选题
难度系数:
3.在0.1mol·L-1CH3COOH溶液中存在如下电离平衡:
CH3COOHCH3COO-+H+对于该平衡,下列叙述正确的是
CH3COOHCH3COO-+H+对于该平衡,下列叙述正确的是
A: 加入水时,平衡向逆反应方向移动 |
B: 加入少量NaOH固体,平衡向正反应方向移动 |
C: 加入少量0.1mol·L-1HCl溶液,溶液中c(H+)减小 |
D: 加入少量CH3COONa固体,平衡向正反应方向移动 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWKoOawtO+8jOacieWIqeS6juW8seeUteino+i0qOeahOeUteemuw==
- 提示2:IOWKoOWFpeawouemu+WtkOaIluawouawp+agueemu+WtkOS8muaKkeWItuawtOeahOeUteemu+OAgg==
- 答案:Qg==
QeOAgeWKoOawtO+8jOacieWIqeS6juW8seeUteino+i0qOeahOeUteemu++8jOWPjeW6lOWQkeato+WQkeenu+WKqO+8jEHplJnor6/vvJs8YnI+QuOAgeWKoOeiseS6juW8semFuOeUteemu+eahEg8c3VwPis8L3N1cD7lj43lupTkvb/nlLXnprvmraPlkJHnp7vliqjvvIxC5q2j56Gu77ybPGJyPkPjgIHliqDlvLrphbjmj5DkvptIPHN1cD4rPC9zdXA+77yM5oqR5Yi25byx6YW455S156a777yM5L2GSDxzdXA+Kzwvc3VwPua1k+W6puWinuWkp++8jEPplJnor6/vvJs8YnI+ROOAgeWKoOWQjOmYtOemu+WtkOeahOW8uueUteino+i0qO+8jOWQjOemu+WtkOaKkeWItuW8semFuOeUteemu++8jOW5s+ihoemAhuWQkeenu+WKqO+8jETplJnor6/jgII=
本课配套习题挑战模式4/5
单选题
难度系数:
4.稀氨水中存在着下列平衡:NH3·H2O+OH-,若要使平衡向逆反应方向移动,同时使c(OH-)增大,应加入适量的物质是
①NH4Cl固体 ②硫酸 ③NaOH固体 ④水 ⑤加热 ⑥加入少量MgSO4固体
①NH4Cl固体 ②硫酸 ③NaOH固体 ④水 ⑤加热 ⑥加入少量MgSO4固体
A: ①②③⑤ |
B: ③⑥ |
C: ③ |
D: ③⑤ |
一次做对,真牛!
+5奖励规则>
- 提示1:IOmmluWFiOagueaNruWKoOWFpeeahOeJqei0qOWIpOaWreemu+WtkOeahOa1k+W6puWPmOWMlu+8jOe7p+iAjOWIpOaWreW5s+ihoeenu+WKqOaDheWGte+8mw==
- 提示2:IOmcgOimgeWQjOaXtua7oei2s+S4pOS4quadoeS7tu+8jOaXouimgeWQkemAhuWPjeW6lOaWueWQkeenu+WKqOWPiOimgea7oei2szxpPmM8L2k+KE9IPHN1cD7vvI08L3N1cD4p5aKe5aSn
- 答案:Qw==
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本课配套习题挑战模式5/5
单选题
难度系数:
5.将0.1mol·L-1CH3COOH溶液加水稀释或加入少量CH3COONa晶体时,都会引起
A: 溶液的pH增加 |
B: CH3COOH电离度变大 |
C: 溶液的导电能力减弱 |
D: 溶液中c(OH-)减小 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOmmluWFiOW8hOa4healmuWKoOWFpeeJqei0qOWQju+8jOW5s+ihoeenu+WKqOaDheWGte+8jOeUteemu+W6puaUueWPmOaDheWGte+8mw==
- 提示2:IOeogOmHiuS/g+i/m+eUteemu+OAguemu+WtkOa1k+W6puWinuWkp+WwhuS8muS9v+W5s+ihoemAhuWQkeenu+WKqOOAgg==
- 答案:QQ==
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