详细分析_百度知道
0℃、1.01×105Pa别向甲、乙、丙三容器加入30.0mL同浓度盐酸再加入同质量由两种金属组合金粉末测量放气体体积若甲、乙、丙三容器加入与盐酸同体积同浓度氢氧化钠溶液再别加入与述实验相同质量同种合金测量放气体体积表：
丙加入合金质量/g
3.57与盐酸反应气体/L
0.672与氢氧化钠反应产气体/L
y（1）据表数据计算物理量及其值（ ）A.合金组
B.合金组含量C.盐酸物质量浓度
D.盐酸密度（2）若两种金属列选项某两种则甲容器两实验：A.质量数40钙
B.质量数56铁
C.质量数64铜D.质量数24镁
E.质量数27铝①经计算,肯定没( )②经计算讨论推测合金能(
提问者采纳
1）据表数据计算物理量及其值（ C）①经计算,肯定没(C )②经计算讨论推测合金能(
DE )0℃、1.01×105Pa 标准状况意思 摩尔体积Vm=22.4第问根据表格加入合金质量/g
3.57与盐酸反应气体/L
0.672确定 加入 1.53 g合金候 盐酸完全反应 氢气=0.672L 0.03mol H2 些H2HCl关系
2HCl---------H2
计算溶质HCl量 0.015 mol 知道盐酸体积答案盐酸浓度C
缺少与碱溶液反应具体条件 缺少金属混合 ~
B.合金组含量 由于知道金属 所求合金含量 D 密度 我知道盐酸质量啊 随便求现求质量
所密度第二问 （2）若两种金属列选项某两种则甲容器两实验题目说 同质量由两种金属组合金粉末
合金与酸与碱H2 Cu盐酸 NaOH都反应（合金与酸与碱反应H2啊
说明合金金属 能酸反应 同酸碱反应） 所判断没Cu计算候 我用平均相质量
设全部2价金属 铝转化 18所A.质量数40钙
B.质量数56铁
C.质量数64铜D.质量数24镁
E.质量数看<img class="word-replace" src="/api/getdecpic?picenc=0a5f价金属 18
铝 混合金属质量 0.51 g 盐酸全反应H2
0.56L mol=0.556/22.4=0.025mol 所混合M = 0.51/0.025=20.4 g/mol所合金必须于 20.4
相原质量于 20.4所根据推断 合金必须含Al
与氢氧化钠反应产气体/L
（气体Al放）
与盐酸反应气体/L
加入合金质量/g
所我看 0.56L -0.336L=0.224L 另金属盐酸反应放气体 计算数据0.01 mol
计算<img class="word-replace" src="/api/getdecpic?picenc=0ag合金含AL
* 18 =0.27g设合金另种金属相原量=R所 0.01R +0.27=0.51 R=
24 所Mg合金 Mg
提问者评价
麻烦了，好好研究一下
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出门在外也不愁量体裁衣：具体问题具体分析
Directions: Study the following cartoon carefully and write an essay in which you should 1) describe the cartoon, 2) interpret its meaning, and 3) point out its implications in our life. 范文1： This cartoon is silly, and yet com
　　Directions: Study the following cartoon carefully and write an essay in which you should　1) describe the cartoon,　2) interpret its meaning, and　3) point out its implications in our life.范文1：　　This cartoon is silly, and yet compelling: a large customer holds a hopelessly small piece of cloth as the tailor carefully measures. Such an image suggests that one needs to consider practical reality in the pursuance of goals. Merely acting on one's desires, while ignoring the facts at hand, cannot lead to success.　　The fact that currently there are more graduates than jobs reminds us of the importance of rational thinking. Every year approximately 3 million students graduate from universities and begin looking for work. Many of them fail to find suitable employment because there are simply not enough opportunities to accommodate such great numbers of graduates. In addition, however, one might also cite flawed individual assessment as a reason. 　　In order to create a realistic target for one's future, one must make rational decisions and prepare accordingly. A student who aims to be a surgeon, for example, must take care to acquire opportunities to do clinical practice and gain sufficient knowledge. In other words, customers would do well to take accurate measurements before purchasing their fabric. A small piece of cloth cannot adequately clothe a large person.译文：这幅画很可笑，但引人注目。一位身体庞大的顾客在裁缝仔细地为他量尺寸准备做衣服时，手里却拿着一块小得令人绝望的衣料。这幅画告诉我们，一个人在执行任务的过程中必须考虑到实际情况，仅从主观意愿出发而不顾眼前的事实，是不可能成功的。　　当前大学生的就业率使我们意识到进行合理思考的重要性，每年有大约300万大学生从学校毕业，寻找工作，他们中的很多人并没有找到一份适合自己的工作，有一个原因是没有足够的就业机会提供给数量如此庞大的毕业生。但除此而外，过高的自我估计也是可能的原因之一。为了能够实现未来目标，一个人必须做出合理的决定，并做好相应的准备。比如一个志在成为外科医生的学生，就必须确保自己有临床实习的机会和足够的知识，换句话说，顾客在购买衣料前必须先量好准确的尺寸，一个大块头是无法穿上一小块布料的.
范文2：　　In the cartoon we can see a large person being measured by a tailor to get suitable clothes made. Anything to be done must be measured in advance so that we are able to find a proper way to do it. If the tailor does not take measurements of the man, then he would not be able to make suitable clothes for this person. 　　This same principle applies to solving any other problem. Firstly, when we want to know the reality of something, we must describe it like it is, getting rid of our prejudices and exaggerations, so that we can have an unbiased view. Secondly, the object should be analyzed in a concrete way so that we can grasp the reasons and rules of it. Thirdly, we must adapt our approach to solving a problem, for each situation is different from the others. So we must view a problem from different perspectives. The cartoon implies different meanings to different people. A teacher should adopt different teaching methods according to the s a doctor should prescribe different treatments according to the patient' a farmer should seed different plants according to the various conditions of the earth. From a philosophical point of view, dissimilar problems should be approached differently. Good results come from attentive analysis of a problem.
译文：　　从图中我们可以看到，一个裁缝正在给一位身材高大的人量身定做一件合适的衣服。在做任何事情都应该预先筹划，以便找到恰当的解决办法。如果这个裁缝不为这个人量尺寸，他就不能为他做出一件合适的衣服。 　　　　这个道理同样适合解决其它任何问题。首先，当我们要了解某事的真相时，我们必须如实地对其描述，排除任何偏见与夸张，以便我们能够得到真实的情况。其次，具体事物要具体分析，这样我们才能够抓住事物的规律。最后，事物的状态是不断变化的，所以我们应当“因地制宜，同时制宜。”总之，我们要从不同的角度看待问题。 图画的内涵对不同的人有着不同的意义。对于教师来说，面对不同的学生要采取不同的教学方法；对于医生来说，要根据病人的不同病情采用相应的治疗方法；对于农民来说，面对不同的土地状况要种植不同的作物。从哲学角度来说，具体问题要具体分析。好的结果总是来自对问题的仔细分析.
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