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19 October, 23:27

Jayden has been given 5 cubic centimeters each of 4 unknown samples of gaseous substance. He has been asked to identity which one is hydrogen. Sample A 0.00036, Sample B 0.000018, sample C 0.00045, D 0.000022. If the density of hydrogen is 0.00009 g/cm^3, which of the unknown is hydrogen.

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  1. 20 October, 02:24
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    Sample-C is the hydrogen.

    Solution:

    Data Given:

    Volume = 5 cm³

    Mass of Sample-C = 0.00045 g

    Reference Density = 0.00009 g/cm³

    Formula Used;

    Density = Mass / Volume

    Density = 0.00045 g / 5 cm³

    Density = 0.00009 g/cm³
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