PROGRESS TEST 1
(a) Explain (1) Empirical formula (1) Molecular forma) Mole
O Calculate the number of moles in 2400 g of COCO, Oxygen molecule
(i) Caco, (iv) MgBE
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ᴇɴᴅᴏᴛʜᴇʀᴍɪᴄ ʀᴇᴀᴄᴛɪᴏɴs ᴀʀᴇ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴs ɪɴ ᴡʜɪᴄʜ ᴛʜᴇ ʀᴇᴀᴄᴛᴀɴᴛs ᴀʙsᴏʀʙ ʜᴇᴀᴛ ᴇɴᴇʀɢʏ ғʀᴏᴍ ᴛʜᴇ sᴜʀʀᴏᴜɴᴅɪɴɢs ᴛᴏ ғᴏʀᴍ ᴘʀᴏᴅᴜᴄᴛs. ... ᴘʜʏsɪᴄᴀʟ ᴘʀᴏᴄᴇssᴇs ᴄᴀɴ ʙᴇ ᴇɴᴅᴏᴛʜᴇʀᴍɪᴄ ᴀs ᴡᴇʟʟ – ɪᴄᴇ ᴄᴜʙᴇs ᴀʙsᴏʀʙ ʜᴇᴀᴛ ᴇɴᴇʀɢʏ ғʀᴏᴍ ᴛʜᴇɪʀ sᴜʀʀᴏᴜɴᴅɪɴɢs ᴀɴᴅ ᴍᴇʟᴛ ᴛᴏ ғᴏʀᴍ ʟɪǫᴜɪᴅ ᴡᴀᴛᴇʀ (ɴᴏ ᴄʜᴇᴍɪᴄᴀʟ ʙᴏɴᴅs ᴀʀᴇ ʙʀᴏᴋᴇɴ ᴏʀ ғᴏʀᴍᴇᴅ).
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the amount of substance in 16 grams of oxygen. ... The average mass of a molecule of a substance relative to one-twelfth the mass ... the number of moles in 1 kilogram of that substance.
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