Mass of A = 320 g Volume of A= 64 cm3
A
Density of B = 3 g/cm3
Volume of B = 27 cm3
(Not drawn to scale)
11
22. What is the density of cube A?
A) 0.2 g/cm3 B) 5.0 g/cm3
C) 12.8 g/cm D) 64.0 g/cm3

Mass of A=320g

Volume of A=64cm3

Density of B =3g/cm3

Volume of B = 27 cm3

(Not drawn to scale)

and the density of cube A =5.0g/cm3

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93.2 ml + 3920 ml = 4013 ml total  

(93.2 ml) * (2.03 m) / (4013 ml) = 0.0471 m

the volume in in l of the diluted solution would be 0.0471 m.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.