SOLUTION: a 7.61cm X 7.68cm rectangular piece of glass has a thickness of 2.2mm and a mass of 35.303g. What is the density of the glass?

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Question 53501: a 7.61cm X 7.68cm rectangular piece of glass has a thickness of 2.2mm and a mass of 35.303g. What is the density of the glass?
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Density=mass/volume highlight%28D=m%2FV%29
The volume of the glass is lenght*width*height
m=35.303 g
The thickness of the glass is not in the right units, it needs to be in cm's like the rest of the dimensions before you multiply.
2.2cross%28mm%29%2A1cm%2Fcross%2810mm%29=.22cm
V=7.61cm%2A7.68cm%2A.22cm=12.857cm%5E3
highlight%28D=35.303g%2F12.857cm%5E3=2.7458%28g%2Fcm%5E3%29%29
Double check this on your calculator, I'm human, not a computer. Math is my thing, and this is a science question. Also some books use kg/m^3 as the prefered unit. Make sure that g/cm^3 is an acceptable unit.
Happy Calculating!!!