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现有一块表面部分被氧化为氧化钠的金属钠,其质量为1.77g,投入到1
现有一块表面部分被氧化为氧化钠的金属钠,其质量为1.77g,投入到1
现有一块表面部分被氧化为氧化钠的金属钠,其质量为1.77g,投入到100g水中产生气体0.05g。试计算:
(1)钠块中钠元素的质量分数;
(2)所得溶液溶质的质量分数;
(3)有多少克金属钠被氧化。
答案
(1)90.96%
(2)2.75%
(3)0.46
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