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28 September, 21:01

Which element has the greatest density at stp? calcium, chlorine, carbon or copper?

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  1. 29 September, 00:13
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    Density = mass/volume

    Since at STP, one mole of any gas occupies 22.4 liters, therefore, the volume is equal.

    So, we will arrange based on mass.

    From the periodic table:

    mass of carbon = 12 grams

    mass of calcium = 40 grams

    mass of chlorine = 35.5 grams

    mass of copper = 63.5 grams

    Based on this:

    copper has the highest density.
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