低钠盐适合患有高血压、肾病、心脏病的患者服用,苹果酸钠盐(C4H5O

低钠盐适合患有高血压、肾病、心脏病的患者服用,苹果酸钠盐(C4H5O5Na)是低钠盐的一种。苹果酸钠盐的摩尔质量是            ,钠元素的质量分数为          (精确到0.1%);苹果酸钠盐中各元素的质量比为C:H:O:Na=        ;5.85g苹果酸钠的物质的量是    mol,若某病人每天食用5.85g苹果酸钠盐,比食用相同质量的食盐(NaCl)少摄入钠元素    克。

答案

156g/mol     14.7%       48:5:80:23     0.0375    1.44解析:

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