1.8×10^17 molecules of sucrose mass(mg)

1.8×10^17 molecules of sucrose mass(mg)

 

 

A sugar crystal contains 1.8×10^17 molecules of sucrose (C12H22O11).

What is the mass of the sugar crystal in mg?

 

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(1.8×10^17 molecules) (1 mol / 6.022×10^23 molecules)

= (1.8×10^17) / (6.022×10^23)

= 2.989×10^(-7) mol C12H22O11

( 참고 https://ywpop.tistory.com/6475 )

 

 

 

C12H22O11의 몰질량 = 342.30 g/mol 이므로,

2.989×10^(-7) mol × (342.30 g/mol) = 0.0001023 g C12H22O11

( 참고 https://ywpop.tistory.com/7738 )

 

 

 

답: 0.10 mg