Question

express unified atomic mass unit in kg​

Answer 1

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Unified atomic mass unit (amu) or (u) =

12

1

the mass of one carbon (C 12) atom.

By Avogadro's number 6.023×10

23

we know that mass of 6.023×10

23

atoms of carbon

6

C

12

is equal to 12 gm.

So mass of one atom of

6

C

12

=

6.023×10

23

12

gm

1 amu=

12

1

mass of one

6

C

12

=

12

1

×

6.023×10

23

12

gm

1.66×10

−24

gm

1 amu=1.66×10

−27

kg

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Answer 2

ᴘʜᴏᴛᴏꜱʏɴᴛʜᴇꜱɪꜱ ɪꜱ ᴀ ᴘʀᴏᴄᴇꜱꜱ ᴜꜱᴇᴅ ʙʏ ᴘʟᴀɴᴛꜱ ᴀɴᴅ ᴏᴛʜᴇʀ ᴏʀɢᴀɴɪꜱᴍꜱ ᴛᴏ ᴄᴏɴᴠᴇʀᴛ ʟɪɢʜᴛ ᴇɴᴇʀɢʏ ɪɴᴛᴏ ᴄʜᴇᴍɪᴄᴀʟ ᴇɴᴇʀɢʏ ᴛʜᴀᴛ, ᴛʜʀᴏᴜɢʜ ᴄᴇʟʟᴜʟᴀʀ ʀᴇꜱᴘɪʀᴀᴛɪᴏɴ, ᴄᴀɴ ʟᴀᴛᴇʀ ʙᴇ ʀᴇʟᴇᴀꜱᴇᴅ ᴛᴏ ꜰᴜᴇʟ ᴛʜᴇ ᴏʀɢᴀɴɪꜱᴍ'ꜱ ᴍᴇᴛᴀʙᴏʟɪᴄ ᴀᴄᴛɪᴠɪᴛɪᴇꜱ.