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xxMikexx [17]
3 years ago
11

Find the density of a 720.0 g block of Titanium with these dimensions: L = 10.0 cm, W = 8.0 cm, H = 2.0 cm

Chemistry
1 answer:
slega [8]3 years ago
4 0

D=m/V=0.72/0.1x0.08x0.02=4500(kg/m3)
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Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 4.90 moles of magnesium perchlorate, Mg(ClO4)2.]\
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 4.90  moles of  Mg(ClO_4)_2   will produce  (9.8) moles of  Cl^{-} ,

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From the question we are told that

  The number of moles of  is  n =  4.90  \ mols

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From the reaction we see that

   1 mole of  Mg(ClO_4)_2  is formed by 2 moles of Cl^{-} 1 mole of  Mg^{2+} and 4  O^{2-}

 This implies that

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                                                    (8 * 4.90) moles of  O^{2-}

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