Question

derive a relation between i and degree of dissolution class 12​

Answer 1

ᴛʜᴇ ᴅᴇɢʀᴇᴇ ᴏꜰ ᴅɪꜱꜱᴏᴄɪᴀᴛɪᴏɴ ᴏꜰ ᴀ ꜱᴜʙꜱᴛᴀɴᴄᴇ ɪꜱ ᴅᴇꜰɪɴᴇᴅ ᴀꜱ ᴛʜᴇ ꜰʀᴀᴄᴛɪᴏɴ ᴏꜰ ɪᴛꜱ ᴍᴏʟᴇᴄᴜʟᴇꜱ ᴅɪꜱꜱᴏᴄɪᴀᴛɪɴɢ ᴀᴛ ᴀ ɢɪᴠᴇɴ ᴛɪᴍᴇ. ... ᴅᴇɢʀᴇᴇ ᴏꜰ ᴅɪꜱꜱᴏᴄɪᴀᴛɪᴏɴ (ᴀ) ᴏꜰ ɴʜ3 ɪꜱ ᴅᴇꜰɪɴᴇᴅ ᴀꜱ ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏꜰ ᴍᴏʟᴇꜱ ᴏꜰ ɴʜ3 ᴅɪꜱꜱᴏᴄɪᴀᴛᴇᴅ ᴘᴇʀ ᴍᴏʟᴇ ᴏꜰ ɴʜ3. ɪꜰ x ᴍᴏʟᴇꜱ ᴅɪꜱꜱᴏᴄɪᴀᴛᴇ ꜰʀᴏᴍ 'ᴀ' ᴍᴏʟᴇꜱ ᴏꜰ ɴʜ3, ᴛʜᴇɴ, ᴛʜᴇ ᴅᴇɢʀᴇᴇ ᴏꜰ ᴅɪꜱꜱᴏᴄɪᴀᴛɪᴏɴ ᴏꜰ ɴʜ3 ᴡᴏᴜʟᴅ ʙᴇ x/ᴀ.

a) Degree of dissociation: It is defined as the fraction of total substance that undergoes dissociation into ions, i.e.,

1. Degree of dissociation = No . of moles of the substance. ...
2. Van ' t Hoff factor = Observed number of moles of solute Normal number of moles of solute.
3. Degree of a ssociation = No . ...
4. i = Observed no .