A cylindrical glass tube of length 27.75 and radius 2.00 cm is filled with argon gas. The empty tube weighs 188.25 g. The tube filled with argon weighs 188.87 g. Use these data to calculate the density of argon gas.
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Verified answer
V=pi x r2 x h
V=348.71cm3
Mass of Argon gas is 188.87-188.25= 0.62 grams
density= grams/cm3
.62 grams/348.71 cm3=
.0017 g/cm3= Argon's Density
Sounds difficult but its really pretty simple:
Density= mass/volume
So in order to find the density you need to find the mass of argon and the volume.
Since the length (27.75) and the radius (2.00cm) has already been given, you can calculate the volume by simply substituting these numbers in the formula for the volume of a cylinder (V=pi*r^2*h):
V= 3.14*4*27.75= 348.54
finding the volume is the hardest part now to find the mass of argon simply subtract the mass of the empty tube from the mass of the tube filled with argon: 188.87-188.25= .62g argon
Now put both answers in the formula for density:
Density= mass/volume = .62/348.54 = .00178g/cm^3
Check calculations but the method is correct
exciting problem! Density is defined because of the fact the mass of a substance in keeping with unit volume. In different words, divide mass by potential of volume. in this problem cm3 potential cubic centimeter. a million cm3 is a unit of volume. For this problem, divide 234 g by potential of seven.9 cm3 to get 29.62 g/cm3. ask your self the place the rock got here from--it did no longer come from Earth. The densest nicely-known substance on earth at common situations of a million environment and 25°C is the ingredient osmium (Os). It has a density of twenty-two.fifty seven g/cm3.