Respuesta :
First, we calculate the total mass.
M = 6.5 kg + 1.5 kg + 2.0 kg = 10 kg
Percent by mass is calculated by getting the ration of the mass of an object and the total mass multiplied by 100 to get the percent.
%M1 = 6.5 / 10 x 100 = 65%
%M2 = 1.5/10 x 100 = 15%
%M3 = 2.0/10 x 100 = 20%
M = 6.5 kg + 1.5 kg + 2.0 kg = 10 kg
Percent by mass is calculated by getting the ration of the mass of an object and the total mass multiplied by 100 to get the percent.
%M1 = 6.5 / 10 x 100 = 65%
%M2 = 1.5/10 x 100 = 15%
%M3 = 2.0/10 x 100 = 20%
Answer:
[tex]\text{Mass percentage}=\frac{\text{Mass of the substance}}{\text{Total mass}}\times 100[/tex]
Given: Mass of books = 6.5 kg
Mass of CD's = 1.5 kg
Mass of DVD's = 2.0 kg
Total mass = 6.5 kg + 1.5 kg + 2.0 kg = 10 kg
[tex]\text {Mass percentage of books}=\frac{6.5kg}{10kg}\times {100}=65\% [/tex]
[tex]\text {Mass percentage of CD's}=\frac{1.5kg}{10kg}\times {100}=15\% [/tex]
[tex]\text {Mass percentage of DVD's}=\frac{2.0kg}{10}\times {100}=20\% [/tex]
