本课配套习题挑战模式1/5
单选题
难度系数:
1.阿斯匹林(分子式为C9H8O4)是人们熟知的治感冒药,具有解热镇痛作用.它的摩尔质量是
A: 148g |
B: 148g/mol |
C: 180g/mol |
D: 146g |
一次做对,真牛!
+5奖励规则>
- 提示1:5pGp5bCU6LSo6YeP55qE5pWw5YC8562J5LqO55u45a+55YiG5a2Q6LSo6YeP77yM6ICM5Y2V5L2N5Li6Zy9tb2zjgII=
- 答案:Qw==
6Zi/5pav5Yy55p6X77yI5YiG5a2Q5byP5Li6QzxzdWI+OTwvc3ViPkg8c3ViPjg8L3N1Yj5PPHN1Yj40PC9zdWI+77yJ55qE55u45a+55YiG5a2Q6LSo6YePPTEyw5c5KzgrMTbDlzQ9MTgwPGJyPuWboOatpOWug+eahOaRqeWwlOi0qOmHjz0xODBnL21vbOOAgg==
本课配套习题挑战模式2/5
单选题
难度系数:
2.下列物质中,摩尔质量最大的是
A: 10mlH2O |
B: 0.8molH2SO4 |
C: 54gAl |
D: 1gCaCO3 |
一次做对,真牛!
+5奖励规则>
- 提示1:5rOo5oSP54mp6LSo55qE5aSa5bCR5LiN5b2x5ZON5pGp5bCU6LSo6YeP44CC
- 答案:RA==
Qemhue+8jOawtOeahOaRqeWwlOi0qOmHj+aYrzE4L21vbO+8mzxicj5C6aG577yM56Gr6YW455qE5pGp5bCU6LSo6YeP5pivOThnL21vbO+8mzxicj5D6aG577yM6ZOd55qE5pGp5bCU6LSo6YeP5pivMjdnL21vbO+8mzxicj5E6aG577yM56Kz6YW46ZKZ55qE5pGp5bCU6LSo6YeP5pivMTAwZy9tb2zjgII8YnI+5Zug5q2kROmhueacgOWkp+OAgg==
本课配套习题挑战模式3/5
单选题
难度系数:
3.已知0.4mol的X气体分子的质量为6.4g,则X气体的摩尔质量是
A: 16g |
B: 32 |
C: 16g/mol |
D: 64g/mol |
一次做对,真牛!
+5奖励规则>
- 提示1:54mp6LSo55qE5pGp5bCU6LSo6YeP562J5LqO6LSo6YeP6Zmk5Lul54mp6LSo55qE6YeP44CC
- 提示2:5rOo5oSP5pGp5bCU6LSo6YeP55qE5Y2V5L2N44CC
- 答案:Qw==
WOawlOS9k+eahOaRqeWwlOi0qOmHjz02LjRnLzAuNG1vbD0xNmcvbW9s44CC5pWF6YCJ5oupQ+mhueOAgg==
本课配套习题挑战模式4/5
单选题
难度系数:
4.有15gA物质和10.5gB物质完全反应后,生成7.2gC物质,1.8gD物质和0.3molE物质.则E的摩尔质量是
A: 100g/mol |
B: 111g/mol |
C: 55g/mol |
D: 27.5g/mol |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u6LSo6YeP5a6I5oGS5a6a5b6L5Y+v5rGC5Ye6ReeJqei0qOeahOi0qOmHj+OAgg==
- 提示2:54mp6LSo55qE5pGp5bCU6LSo6YeP562J5LqO54mp6LSo55qE6LSo6YeP6Zmk5Lul54mp6LSo55qE6YeP44CC
- 答案:Qw==
5qC55o2u6LSo6YeP5a6I5oGS5a6a5b6L77yM55Sf5oiQ55qEReeJqei0qOeahOi0qOmHjz0xNSsxMC41LTcuMi0xLjg9MTYuNWc8YnI+ReeahOaRqeWwlOi0qOmHjz0xNi41Zy8wLjNtb2w9NTVnL21vbDxicj7mlYXpgInmi6lD6aG544CC
本课配套习题挑战模式5/5
单选题
难度系数:
5.pg某结晶水合物CuSO4•nH2O受热失去全部结晶水后,质量变为qg,该结晶水合物的摩尔质量(单位g/mol)为
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:5pys6aKY55qE56qB56C05Y+j5piv5rC055qE6LSo6YeP5oiW6ICF56Gr6YW46ZOc55qE6LSo6YeP44CC5Yip55So5LuW5Lus5LiO57uT5pm25rC05ZCI54mp55qE5q+U5L6L5YWz57O76L+b6KGM6K6h566X44CC
- 提示2:5qC55o2u5Zub5Liq6YCJ6aG55Y+v5Lul5o6o5rWL5Ye677yM5rC055qE5pGp5bCU6LSo6YePMThnL21vbOaIluiAheehq+mFuOmTnOeahOaRqeWwlOi0qOmHjzE2MOW6lOivpeeul+S9nOW3suefpeOAgg==
- 答案:Qg==
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