本课配套习题挑战模式1/5
单选题
难度系数:
1.0.25molA的质量是16g,A的相对分子质量(或相对原子质量)是
A: 32g•mol-1 |
B: 64×10-3kg•mol-1 |
C: 32 |
D: 64 |
一次做对,真牛!
+5奖励规则>
- 提示1:6KaB5rOo5oSP55u45a+55YiG5a2Q6LSo6YeP5LiO5pGp5bCU6LSo6YeP55qE5Yy65YirLg==
- 答案:RA==
6aaW5YWI5piO56Gu5Y2V5L2N77ya55u45a+55YiG5a2Q6LSo6YeP55qE5Y2V5L2N5pivMe+8jOiAjOaRqeWwlOi0qOmHj+eahOWNleS9jeaYr2cvbW9s44CCPGJyPkHnmoTmkanlsJTotKjph489MTZnw7cwLjI1bW9sPTY0Zy9tb2zvvIw8YnI+5Zug5q2kQeeahOebuOWvueWIhuWtkOi0qOmHj+S4ujY0LkTpobnmraPnoa7jgII=
本课配套习题挑战模式2/5
单选题
难度系数:
2.下列气体中,摩尔质量最大的是
A: H2 |
B: O2 |
C: CO |
D: NH3 |
一次做对,真牛!
+5奖励规则>
- 提示1:5pGp5bCU6LSo6YeP55qE5aSn5bCP5LiO55u45a+55YiG5a2Q6LSo6YeP55qE5aSn5bCP55u4562J44CC
- 答案:Qg==
5rCi5rCU55qE5pGp5bCU6LSo6YeP5Li6MiBnL21vbO+8m+awp+awlOeahOaRqeWwlOi0qOmHj+S4ujMyIGcvbW9s77ybQ0/nmoTmkanlsJTotKjph4/kuLoyOGcvbW9s77yb5rCo5rCU55qE5pGp5bCU6LSo6YeP5Li6MTcgZy9tb2zjgILlm6DmraTpgInmi6lC6aG544CC
本课配套习题挑战模式3/5
单选题
难度系数:
3.下列叙述正确的是
A: 1molCO2的质量为44g/mol |
B: CO2的摩尔质量为44g |
C: CO2的摩尔质量等于CO2的相对分子质量 |
D: NA个CO2的质量与CO2的相对分子质量在数值上相同 |
一次做对,真牛!
+5奖励规则>
- 提示1:5rOo5oSP5ZCE54mp55CG6YeP55qE5Y2V5L2N44CC
- 答案:RA==
6LSo6YeP55qE5Y2V5L2N5Li6Z++8jEHpobnplJnor6/vvJs8YnI+5pGp5bCU6LSo6YeP55qE5Y2V5L2N5Li6Zy9tb2zvvIxC6aG56ZSZ6K+v77ybPGJyPuaRqeWwlOi0qOmHj+S4juebuOWvueWIhuWtkOi0qOmHj+eahOaVsOWAvOebuOetie+8jOS9huWNleS9jeW5tuS4jeebuOWQjO+8jOWboOatpEPpobnplJnor6/vvIxE6aG55q2j56Gu44CC
本课配套习题挑战模式4/5
单选题
难度系数:
4.下列说法正确的是
A: 1molH2的质量是1g |
B: 1molHCl的质量是36.5g•mol-1 |
C: Cl2的摩尔质量等于它的相对分子质量 |
D: 硫酸根离子的摩尔质量是96g•mol-1 |
一次做对,真牛!
+5奖励规则>
- 提示1:6KaB5rOo5oSP55u45a+55YiG5a2Q6LSo6YeP5ZKM5pGp5bCU6LSo6YeP55qE5Y2V5L2N44CC
- 答案:RA==
MW1vbEg8c3ViPjI8L3N1Yj7nmoTotKjph4/mmK8yZ++8jEHpobnplJnor6/vvJs8YnI+6LSo6YeP55qE5Y2V5L2N5pivZ++8jELpobnplJnor6/vvJs8YnI+5pGp5bCU6LSo6YeP55qE5aSn5bCP562J5LqO55u45a+55YiG5a2Q6LSo6YeP77yM5L2G5Y2V5L2N5LiN5ZCM77yMQ+mhuemUmeivr++8mw==
本课配套习题挑战模式5/5
单选题
难度系数:
5.一个NO分子的质量为a克,一个NO2分子质量为b克,NA表示阿伏加德罗常数,则氧原子的摩尔质量为
A: (b-a)NAg |
B: (b-a)g/mol |
C: (b-a)NAg/mol |
D: (b-a)NA |
一次做对,真牛!
+5奖励规则>
- 提示1:6aaW5YWI5piO56Gu5pGp5bCU6LSo6YeP55qE5oSP5LmJ77yM5piv5oyH5Y2V5L2N54mp6LSo55qE6YeP77yI5Lmf5bCx5pivMW1vbO+8ieeJqei0qOeahOi0qOmHj+OAguiAjDFtb2znianotKjlkKvmnIlOPHN1Yj5BPC9zdWI+5Liq5b6u57KS44CC
- 答案:Qw==
5LiA5LiqTk/liIblrZDnmoTotKjph4/kuLph5YWL77yM5LiA5LiqTk88c3ViPjI8L3N1Yj7liIblrZDotKjph4/kuLpi5YWL77yM5LuW5Lus55qE5beu5YC85piv5LiA5Liq5rCn5Y6f5a2Q55qE6LSo6YeP77ya77yIYi1h77yJZ+OAgjxicj7msKfljp/lrZDnmoTmkanlsJTotKjph4/lupTor6XmmK8xbW9s5rCn5Y6f5a2Q77yM5Lmf5bCx5pivTjxzdWI+QTwvc3ViPuS4quawp+WOn+WtkOeahOi0qOmHj++8mu+8iGItYe+8iU48c3ViPkE8L3N1Yj5n77yM6L+Y6KaB5rOo5oSP5Y2V5L2N6ZyA6KaB5pS55oiQZy9tb2zjgII=