Grade 11Physical Chemistry
Calculate the number of gram molecule in 12.7 mg of Iodine
Calculate the number of gram molecule in 12.7 mg of Iodine
1 Answer
Rituraj Tiwari
1. A gram atom and a gram molecule are termed as a mole of atom and am mole of molecules respectively.
2. For e.g 1 gram atom of oxygen is 1 mole of O and 1 gram molecule of oxygen is 1 mole of O2.
3. In iodine,
Number of moles of I in 25.4 mg of I =25.4126.9=0.2
Similarly for I2= 0.1 m moles.
4. So, 25.4 mg of iodine has 0.2 mmoles of I and 0.1 mmoles of I2.
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