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Llana [10]
2 years ago
8

In the lab, a student measures a cube of copper to be 2.25 cm on a side. What is the volume of the cube, with the correct number

of significant digits and units? When entering your answer, make sure that there is a single space between your numerical value and your unit: "12.34 mL".
Chemistry
1 answer:
Gemiola [76]2 years ago
4 0

Answer:

11.39 cm³

Explanation:

22.5³=11.39 (4 s.f.)

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A = \log {\left (\dfrac{1}{T}}\right)}\\\\\%T = 100T\\\\T = \dfrac{\%T}{100}\\\\\dfrac{1}{T} = \dfrac{100 }{\%T}\\\\A = \log \left(\dfrac{100 }{\%T} \right ) = 2 - \log \%T\\\\0.499 = 2 - \log \%T\\\\\log \%T = 2 - 0.499 = 1.501\\\\\%T = 10^{1.501} = \mathbf{31.7}

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A = \log \left (\dfrac{I_{0}}{I} \right ) = \log \left (\dfrac{I_{0}}{0.70I_{0}} \right ) = \log \left (\dfrac{1}{0.70} \right ) = -\log(0.70) = \mathbf{0.15}}

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