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in Atoms and Molecules by (48.5k points)
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Find how many moles are there in 

(a) 98 g of H2SO4

(b) 18.069 × 1023 atoms of calcium

(c) 4.48 L of CO2

1 Answer

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(a) 98 g of H2SO4 

GMM of H2SO4 = 2(1) + 32 + 4(16) 

= 98 g 

Number of moles = \(\frac{GivenMass}{Mol.Mass}\)

\(\frac{98}{98}\)

= 1 mole

(b) 18.069 × 1023 atoms of calcium

Number of moles

= 3 moles

(c) 4.48 L of CO2

Number of moles

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