25cm cube ethyl with density 0.79 added to graduated cylinder weight 44.28 what will be the weight of cylinder plus alcohol

Answer 1

Good Morning,

We first need to calculate the mass of ethyl using the density formula D = m/V

According to the question, the density of ethyl is 0.79, and the volume of ethyl is 25 cm

m = D x V

Plug in the correct numbers and multiply

m = (0.79) x (25)

m = 19.75

Since we need to find the mass of the ethyl AND the graduated cylinder, we are going to add both masses together.

mass of ethyl = 19.75

mass of graduated cylinder = 44.28

Add together = 19.75 + 44.28 = 64.03 is the final answer :)

Hope this helps :)

Answer 2

If you mean 25 cm³ of ethyl alcohol, then we can convert this to grams using the density of 0.79 g / cm³ and add this to the 44.28 g (you left out all of the units).

25 cm³ x 0.79 g / cm³ = 19.75 g

19.75 g + 44.28 g = 64.03 g