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Question

Calculate the mass of 3.011 × 1024 atoms of carbon.


Solution

Number of carbon atoms = 3.011 × 1024

MassMolarmass=No.ofatomsNA 

We know that 12g (atomic mass of carbon) of carbon contains 6.022 × 1023 carbon atoms.
Molar mass of carbon atom = 12g/mol

From formula, Mass= Mass=3.011×10246.023×1023×12=60g 
Hence, the mass of 3.011 × 1024 carbon atoms =60g (approximately)


Science
Lakhmir Chemistry (2020, 2021)
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