Question

Calculate the mass of a rectangular solid that has a density of 2.53 g/cm3 and which measures 25 mm by 1.80 cm by 3.00 cm.

Dont say in what but i assume grams

Answer 1

density = mass / volume
\[volume = 0.25cm * 1.8 cm * 3.00cm\]
this is the volume of the rectangular solid and beware of units

density = 2.53 g /cm3

So 2.53 = m / (.25 * 1.8 * 3)

m = 1.87 g

hope this is what you are looking for.

Answer 2

2.5 cm not .25

Right?

Answer 3

yeah, 2.5 cm.

Answer 4

Sorry, it is 2.5 cm

Answer 5

\[\frac mV=\rho\]
\[m=\rho\times V \]\[=2.53 \left[\frac{\text g}{{\text {cm}}^3}\right] \times 2.5[\text {cm}]\times1.80 [\text {cm}]\times3.00 [\text {cm}]\]\[=(2.53\times2.5\times1.8\times3)[\text g]\]

Answer 6

Thanks :)

but you didn't have to do all that equation editing :P

Answer 7

did you get the right answer ?

Answer 8

34.1550 g