How many moles are there in 0.5g of sodium? (Na=23u)
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Answered by
2
23g Na have -1 mol
0.5gNa have-1*0.5/23=1/46=0.0217
0.5gNa have-1*0.5/23=1/46=0.0217
Answered by
5
ɢɪᴠᴇɴ :
ɢɪᴠᴇɴ ᴍᴀss = 0.5 ɢ
ᴀᴛᴏᴍɪᴄ ᴍᴀss = 23 ᴜ
ɴᴏᴡ, ᴀᴛᴏᴍɪᴄ ᴍᴀss ɪs ɴᴜᴍᴇʀɪᴄᴀʟʟʏ ᴇǫᴜᴀʟ ᴛᴏ ᴍᴏʟᴀʀ ᴍᴀss ʙᴜᴛ ᴛʜᴇʀᴇ ɪs ᴀ ᴅɪғғᴇʀᴇɴᴄᴇ ᴏғ ᴜɴɪᴛ.
•°•
ᴍᴏʟᴀʀ ᴍᴀss = 23 ɢ
ɴᴏᴡ,
ɴᴏ. ᴏғ ᴍᴏʟᴇs = ɢɪᴠᴇɴ ᴍᴀss / ᴍᴏʟᴀʀ ᴍᴀss
= 0.5 / 23
= 0.0217 ᴍᴏʟᴇs
ɢɪᴠᴇɴ ᴍᴀss = 0.5 ɢ
ᴀᴛᴏᴍɪᴄ ᴍᴀss = 23 ᴜ
ɴᴏᴡ, ᴀᴛᴏᴍɪᴄ ᴍᴀss ɪs ɴᴜᴍᴇʀɪᴄᴀʟʟʏ ᴇǫᴜᴀʟ ᴛᴏ ᴍᴏʟᴀʀ ᴍᴀss ʙᴜᴛ ᴛʜᴇʀᴇ ɪs ᴀ ᴅɪғғᴇʀᴇɴᴄᴇ ᴏғ ᴜɴɪᴛ.
•°•
ᴍᴏʟᴀʀ ᴍᴀss = 23 ɢ
ɴᴏᴡ,
ɴᴏ. ᴏғ ᴍᴏʟᴇs = ɢɪᴠᴇɴ ᴍᴀss / ᴍᴏʟᴀʀ ᴍᴀss
= 0.5 / 23
= 0.0217 ᴍᴏʟᴇs
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