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3 years ago

What is the number of grams of cl2 formed when 0.485 mole HCl reacts with an excess of O2

Chemistry

1 answer:

SSSSS [86.1K]3 years ago

5 0

Answer:

Mass of Cl₂ = 17.25 g

Explanation:

Given data:

Moles of hydrochloric acid = 0.485 mol

Mass of chlorine gas = ?

Chemical equation:

4HCl + O₂ → 2Cl₂ + 2H₂O

Now we will compare the moles of Cl₂ with HCl .

HCl : Cl₂

4 : 2

0.485 : 2/4× 0.485 = 0.243 mol

Oxygen is present in excess that's why mass of chlorine produce depend upon the available amount of HCl.

Mass of Cl₂ :

Mass of Cl₂ = moles × molar mass

Mass of Cl₂ =0.243 mol × 71 g/mol

Mass of Cl₂ = 17.25 g

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