find number of mol in 1kg sugar
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Answer:
Molar mass of the Sugar = 342 g/mole. Mass = 1 kg. = 1000 g. = 2.92 moles.
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Answer:
Mᴏʟᴀʀ ᴍᴀss ᴏғ ᴛʜᴇ sᴜɢᴀʀ = 342ɢ / ᴍᴏʟᴇs
ᴍᴀss = 1ᴋɢ = 1000ɢ
ɴᴏ. ᴏғ ᴍᴏʟᴇᴄᴜʟᴇs = 1000/342=2.92Mᴏʟᴇs
ɴᴏ. ᴏғ ᴍᴏʟᴇᴄᴜʟᴇs = ɴᴏ. ᴏғ ᴍᴏʟᴇs × Aᴠᴏɢᴀᴅʀᴏ's ɴᴜᴍʙᴇʀ
ɴᴏ. ᴏғ ᴍᴏʟᴇᴄᴜʟᴇs = 2.92×6.022×10^23
= 17.58×10^23 ᴍᴏʟᴇᴄᴜʟᴇs
ɴᴏ.ᴏғ ᴀᴛᴏᴍs ɪɴ 1 ᴍᴏʟᴇᴄᴜʟᴇs ᴏғ sᴜɢᴀʀ ( C12 H22 011 ) = 12+22+11=45
ᴛᴏᴛᴀʟ ɴᴜᴍʙᴇʀ ᴏғ ᴀᴛᴏᴍ ɪɴ 1ᴋɢ ᴏғ sᴜɢᴀʀ = 45×17.58×10^23
= 791.29 × 10^23
= 7.913×10^25 Aᴛᴏᴍs
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