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i have done few simple questions by using p = m/v to calculate the mass, volume and density, but for this question, i don't know how to do it. Please help ^^"
(a) Define the density of a material.
>Density is the mass of the material per unit volume.
(b)Brass, an alloy of copper and zinc, consists of 70% BY VOLUME of copper and 30% BY VOLUME of zinc.
Density of Copper = 8.9 x 10^3kgm^-3
Density of Zinc = 7.1 x 10^3kgm^-3
(i)Determine the mass of copper and the mass of zinc required to make a rod of bras of volume 0.80 x 10^-3m^3
hmm..Cu = Mass x 70% x 8.9 x 10^3kgm^-3, Zn = Mass x 30% x 7.1 x 10^3kgm^-3...?
(ii)Calculate the density of brass.
I think i will know how to do this question if i know the answer for (i)... = =
(a) Define the density of a material.
>Density is the mass of the material per unit volume.
(b)Brass, an alloy of copper and zinc, consists of 70% BY VOLUME of copper and 30% BY VOLUME of zinc.
Density of Copper = 8.9 x 10^3kgm^-3
Density of Zinc = 7.1 x 10^3kgm^-3
(i)Determine the mass of copper and the mass of zinc required to make a rod of bras of volume 0.80 x 10^-3m^3
hmm..Cu = Mass x 70% x 8.9 x 10^3kgm^-3, Zn = Mass x 30% x 7.1 x 10^3kgm^-3...?
(ii)Calculate the density of brass.
I think i will know how to do this question if i know the answer for (i)... = =