a nameless element (X) was found to occur in three different
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a nameless element (X) was found to occur in three different substances (A,B and C).The relative molecular masses of A,B,and C were found to be 33.70,79.40 and 252.20 respectively,compared to an assigned value of exactly 2.00 for H2.Subsequently,these substances were subjected to elemental analysis and were found to contain 94.1%,59.9% and 25.2% of X respectively by mass.
What is the (likely) relative atomic mass of X,on this scale?
What would be the correct chemical symbol for
What is the (likely) relative atomic mass of X,on this scale?
What would be the correct chemical symbol for
33.7 x 94.1% =31.7
79.4 x 59.9% = 47.56
252.40 x 25.2% = 63.60
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79.4 x 59.9% = 47.56
252.40 x 25.2% = 63.60
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可以解决所有化学生物问题
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