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Answer:
1. 12.066 × 10^22 atoms
2.48 grams
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given weight= 4.6g
rmm of Na= 23
therefore moles= 4.6/23= 0.2 moles
therefore, no. of atoms = 6.023×10²³×0.2 atoms
given mass= 24g therefore
moles= 24/ rmm
...
volume = 11.2lts
therefore,
v= n ×22.4
n= 11.2/22.4 = 0.5 moles..
therefore, 24/rmm= 0.5
rmm= 240/5 = 48amu
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