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13 April, 19:05

How many titanium atoms does it contain? titanium has a density of 4.50g/cm3, a pure titanium cube has an edge length of 2.82 in?

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  1. 13 April, 19:13
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    2.82 inches is are equivalent to 7.16 cm.

    The volume of the cube;

    7.16 * 7.16 * 7.16 = 367.06 cm³

    The density of titanium is 4.5 g/cm³

    Therefore; mass will be 4.5 * 367.06 = 1651.77 g

    1 mole of titanium has 47.867 g

    thus, 1651.77 g is equivalent to 1651.77 / 47.867 = 34.507 moles

    According to the Avagadro's constant 1 mole = 6.022 * 10∧23 atoms

    Therefore, we get 6.022 * 10∧23 * 34.507 = 2.078 * 10∧25 atoms
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