calculate the density of gold (in units of g/mL) if a 5.00 cm cube has a mass of 2.41kg

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03-07-2018
Chemistry

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calculate the density of gold (in units of g/mL) if a 5.00 cm cube has a mass of 2.41kg

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JorisHogenbirk JorisHogenbirk · Answer 1 · 2018-07-03T00:47:28+02:00

JorisHogenbirk JorisHogenbirk

03-07-2018

the volume of a 5cm cube is 0.5dm*0.5dm*0.5dm = 0.125dm^3
1dm^3 = 1l
So 0.125dm^3 = 125mL
This gives us 2410/125 = 19.28
So the density of gold is 19.28g/mL
Final check: Gold is indeed 19.3g/mL

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Willchemistry Willchemistry · Answer 2 · 2018-07-03T00:56:18+02:00

Willchemistry Willchemistry

03-07-2018

Turn 2.41 kg into grams :

2.41 * 1000 => 2,410 g

1 cm³ = 1 mL , so:

5.00 cm³ = 5.00 mL

Therefore:

D = mass / volume

D = 2,410 / 5.00

D = 482 g/mL

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