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Katena32 [7]
3 years ago
10

How many grams of chloride are found in 72.03mg of magnesium chlorate?

Chemistry
1 answer:
olga_2 [115]3 years ago
4 0

Answer:

26.73 mg.

Explanation:

  • Firstly, we can calculate the no. of moles of magnesium chlorate (Mg(ClO₃)₂):

no. of moles of magnesium chlorate (Mg(ClO₃)₂) = mass/molar mass = (72.03 mg)/(191.21 g/mol) = 0.377 mmol.

<em>Every 1.0 mole of magnesium chlorate (Mg(ClO₃)₂) contains 2.0 moles of Cl.</em>

<em></em>

∴ The no. of moles of Cl in magnesium chlorate (Mg(ClO₃)₂) = 2(0.377 mmol) = 0.754 mmol.

∴ The mass of Cl are found in 72.03 mg of magnesium chlorate (Mg(ClO₃)₂) = (no. of moles of Cl)(atomic mass of Cl) = (0.754 mmol)(35.453 g/mol) = 26.73 mg.

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