Determine the volume in liters occupied by 22.6 g of I2 gas at STP.

Chemistry

1 answer:

AleksandrR [38]4 years ago

6 0

The volume in liters occupied by 22.6 g of I₂ gas at STP is 1.99 L (answer A)

<u><em>calculation</em></u>

Step: find the moles of I₂

moles= mass÷ molar mass

from periodic table the molar mass of I₂ is 253.8 g/mol

moles = 22.6 g÷253.8 g/mol =0.089 moles

Step 2:find the volume of I₂ at STP

At STP 1 moles =22.4 L

0.089 moles= ? L

<em>by cross multiplication</em>

={ (0.089 moles x 22.4 L) /1 mole} = 1.99 L

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