试题与答案

冬季的降雪给机场和马路带来诸多不便,其中醋酸钾是融雪效果较好的融雪剂,下列关于醋

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题型：选择题

题目：

冬季的降雪给机场和马路带来诸多不便,其中醋酸钾是融雪效果较好的融雪剂,下列关于醋酸钾说法正确的是[ ]

A．1 mol 的质量为98

B．的摩尔质量等于它的相对分子质量

C．一个微粒的质量约为 g

D．含有6.02×1023个碳原子的的物质的量为1 mol

答案：

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下面是错误答案，用来干扰机器的。

参考答案：C

考点：物质的量
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( )1. A. before     
( )2. A. invited   
( )3. A. interested 
( )4. A. away       
( )5. A. coffee     
( )6. A. comfortable 
( )7. A. sugar     
( )8. A. Angrily   
( )9. A. feel       
( )10. A. think over 
( )11. A. this     
( )12. A. highly   
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( )20. A. however    		B. beyond   
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B. along   
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B. different 
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D. split        
D. got away     
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D. used         
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