A certain liquid has a density of 2.67 g/cm^3. 30.5mL of this liquid would have a mass of _____ Kg. Can anyone show me how to work this problem? Thanks
2007-01-29 05:15:45 · 4 answers · asked by James F 3 in Science & Mathematics ➔ Chemistry
The answer to this question should contain 3 significant figures becasue the numbers in the question contain 3 sig fig, thus your answer shouldn't excess 3 sig fig.
(2.67g/mL)(30.5mL) = 81.4 g
81.4 g = 0.0814 kg = 8.14 * 10^-3 kg
2007-01-29 08:04:27 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Density = Mass/Volume
Density = 2.67 gm/cm^3
Volume = 30.5 ml = 30.5 cm^3
therefore the Mass = 30.5 x 2.67 = 81.435 gm or .081 kg
2007-01-29 13:27:25 · answer #2 · answered by 1ofSelby's 6 · 0⤊ 0⤋
Mass = density times volume. So all you have to do is multiply.
2007-01-29 13:23:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋
m = V*d =(30.5 ml) *(2.67 g/ml)
=81.44 g =0.08144 Kg Answer
2007-01-29 13:23:17 · answer #4 · answered by Anonymous · 0⤊ 0⤋