12.4gNa2x内有0.4mol钠离子,则Na2x的摩尔质量为多少?x的相对原子量为多少?x指未知
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![12.4gNa2x内有0.4mol钠离子,则Na2x的摩尔质量为多少?x的相对原子量为多少?x指未知](/uploads/image/z/6138255-39-5.jpg?t=12.4gNa2x%E5%86%85%E6%9C%890.4mol%E9%92%A0%E7%A6%BB%E5%AD%90%2C%E5%88%99Na2x%E7%9A%84%E6%91%A9%E5%B0%94%E8%B4%A8%E9%87%8F%E4%B8%BA%E5%A4%9A%E5%B0%91%3Fx%E7%9A%84%E7%9B%B8%E5%AF%B9%E5%8E%9F%E5%AD%90%E9%87%8F%E4%B8%BA%E5%A4%9A%E5%B0%91%3Fx%E6%8C%87%E6%9C%AA%E7%9F%A5)
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