What is the concentration of ammonia in a solution if 20.90ml of a 0.1110 M solution...

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What is the concentration of ammonia in a solution if 20.90ml ofa 0.1110 M solution of HCl are needed to titrate a 100.0ml sampleof a solution?

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4.1 Ratings (895 Votes)

NH3Â Â + Â Â HCl-----> NH4Cl

1 moleÂ Â Â 1 mole

HClÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â NH3

M1 = 0.111MÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â M2 =

volume = 20.9mlÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â V2 = 100ml

no of molesn1 = 1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â no of moles n2 = 1

M1V1/n1Â Â = M2V2/n2

M2Â Â Â Â Â = M1V1n2/n1V2

Â Â Â Â Â Â = 0.111*20.9*1/1*100 = 0.0232 M >>>> answer

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