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30 September, 14:04

What volume of water has the same mass as 9.0m3 of ethyl alcohol?

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  1. 30 September, 14:13
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    This question requires the knowledge of density.

    The density of ethyl alcohol = 789 kg m⁻³

    The density of water = 1000 kg m⁻³

    Density = Mass / Volume

    By applying ethyl alcohol,

    789 kg m⁻³ = Mass / 0.9 m³

    Mass = 710.1 kg

    hence the mass of 0.9 m³ ethyl alcohol is 710.1 kg.

    Then by applying water,

    1000 kg m⁻³ = 710.1 kg / Volume

    Volume = 0.7101 m³

    = 0.7 m³

    hence the equal water volume is 0.7 m³
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