The volume of a sphere is given by V = (4/3)πrr3 , where r is the radius. Compute the volume of a sphere with a radius of 161 pm.?
State your answer in units of m3. Help? Chemistry is killing me
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State your answer in units of m3. Help? Chemistry is killing me
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Volume = (4/3)*pi*r^3
If you mean r = 161 cm...
Volume = (4/3)*pi*(161)^3...units of cm^3
Divide by 100^3 to change to m^3.
Over to you and your calculator!
Response to comment: Aha! Yes! I see what you mean, Trevor. The questioner might mean pico metres (10^-12 metres) rather than centi metres (10^-2 metres). If so, the correction factor in the last line isn't (10^2)^3, but (10^12)^3.
Hence answer is (4/3)*pi*(161)^3*10^-36 = 2.81444E-27 cubic metres.