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To solve this you need to know the relationship that density = mass divided by volume

We're given a length of a side of a cube as 2.5cm so to find the volume of the cube we need to cube it (length x bredth x height)

volume = (2.5)3 = 15.625cm3

so if density = mass(136.95g)/volume(15.625cm3)

density = 8.7648 g cm-3

in textbooks its given as (8.3- 8.7 gcm-3) as a typical density of brass.

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โˆ™ 2011-09-14 09:15:38
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Q: What is the density of a 2.50 centimeter brass cube that weighs 136.95 grams?
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