The density of aluminium is 2.70g/cm^3 . if a cube of aluminum weights 13.5 grams, what is the lengths of the edge of the cube.

-

1.71 cm

Explanation: -

Density of aluminium = 2.70 g /

Mass of aluminium = 13.5 g

We know density of a substance is the mass of the substance per unit volume.

Density = Mass / volume

Volume = Mass / density

Volume of aluminium = Mass of aluminium / Density of Aluminium

= 13.5 g / 2.70 g/

= 5

We know for a cube volume =

Length of the cube =

=

=1.71 cm

Thus if the density of aluminium is 2.70g/ and the cube of aluminum weights 13.5 grams, 1.71 cm is the length of the edge of the cube

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

24

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