mass (in pg) of O in 2.63 ng of H2SO4

mass (in pg) of O in 2.63 ng of H2SO4

 

 

Determine the mass (in pg) of oxygen in 2.63 nanograms of H2SO4.

 

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> H2SO4의 몰질량 = 98.08 g/mol

> O의 몰질량 = 16.00 g/mol

 

 

 

2.63 ng H2SO4 × ((4×16.00 g O) / 98.08 g H2SO4)

= 2.63 × ((4×16.00) / 98.08)

= 1.71615 ng O

 

1.71615 ng × (1000 pg / 1 ng)

= 1716.15 pg O

= 1.72×10^3 pg O