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23-09-2016
Chemistry

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A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 19.78 nm. What is the total width of a crystal in millimeters 105 molecules across? Write your answer as a decimal.

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05-10-2016

1 nm = 0.000001 mm

105 * 19.78 * 0.000001 = 0.0020769 mm

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