Phenylephrine HCL has a molecular weight of 203.66 g/mol. How many formula units are in 10...

Phenylephrine HCL has a molecular weight of 203.66 g/mol. How many formula units are in 10 mg of phenylephrine HCL?

Expert Solution

weight of phenylephrine HCL = 10mg = 10*10^-3 g = 10^-2g

molecular weight of phenylephrine HCl = 203.66 g/mol

no of moles of phenylephrine HCL = W/G.M.Wt

= 10^-2/203.66 = 4.91*10^-5 moles

no of formula units = no of moles * 6.023*10^23 formula units/mole

= 4.91*10^-5 moles* 6.023*10^23 formula units/mole

= 2.96*10^19 formula units >>>>>answer

queen_honey_blossom answered 2 years ago

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