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jcherry99

Answer:

Explanation:

Comment

1 mole of KClO3 has 3 moles of oxygen

9.9 moles of KClO3 has x moles of oxygen

Formula

1/9.9 = 3/x                                    Cross Multiply

Solution

1 / 9.9 = 3 / x

1*x = 9.9 * 3

x = 29.7 moles of oxygen

1 mole of oxygen has 6.02 * 10^23 atoms making up that 1 mole

29.7 moles of oxygen has 6.02*10^23 atoms making them up.

Answer

29.7 * 6.02 * 10^23 atoms

1.78 * 10^25 atoms

Calculate atoms in KClO_3

  • K=1
  • Cl=1
  • O=3

1 mol KCl contains 3mol O_2

9.9 mol contains

  • 9.9(3)
  • 29.7mol O_2

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