Question

find the molecular mass of C2H6 +O2 ?​

Answer 1

Since we know the atomic masses of the elements, we can sum the atomic masses to obtain the molecular masses. We also know that 1 mole of C atoms weighs 12.01 g and 1 mol of H atoms weighs 1.0079 g. So, we know the molar mass of ethane also. Or, 30.07 g in 1 mole C2H6.

Answer 2

Explanation:

ꜱɪɴᴄᴇ ᴡᴇ ᴋɴᴏᴡ ᴛʜᴇ ᴀᴛᴏᴍɪᴄ ᴍᴀꜱꜱᴇꜱ ᴏꜰ ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛꜱ, ᴡᴇ ᴄᴀɴ ꜱᴜᴍ ᴛʜᴇ ᴀᴛᴏᴍɪᴄ ᴍᴀꜱꜱᴇꜱ ᴛᴏ ᴏʙᴛᴀɪɴ ᴛʜᴇ ᴍᴏʟᴇᴄᴜʟᴀʀ ᴍᴀꜱꜱᴇꜱ. ᴡᴇ ᴀʟꜱᴏ ᴋɴᴏᴡ ᴛʜᴀᴛ 1 ᴍᴏʟᴇ ᴏꜰ ᴄ ᴀᴛᴏᴍꜱ ᴡᴇɪɢʜꜱ 12.01 ɢ ᴀɴᴅ 1 ᴍᴏʟ ᴏꜰ ʜ ᴀᴛᴏᴍꜱ ᴡᴇɪɢʜꜱ 1.0079 ɢ. ꜱᴏ, ᴡᴇ ᴋɴᴏᴡ ᴛʜᴇ ᴍᴏʟᴀʀ ᴍᴀꜱꜱ ᴏꜰ ᴇᴛʜᴀɴᴇ ᴀʟꜱᴏ. ᴏʀ, 30.07 ɢ ɪɴ 1 ᴍᴏʟᴇ ᴄ2ʜ6.

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