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find normality of the following 1. 70 g of NH4OH is dissolved in 2 L of water 2 . 39 g of Al(OH)3 is dissolved in 10 L of water. ANS) 1.) 1.12 2.)0.15 plz shw the steps....

find normality of the following


1. 70 g of NH4OH is dissolved in 2 L of water


2 . 39 g of Al(OH)3 is dissolved in 10 L of water.


ANS) 1.) 1.12


       2.)0.15


plz shw the steps....

Grade:12

2 Answers

Prajwal kr
49 Points
9 years ago

1. n factor = 1

    no. of moles of NH4OH is: 70/35=2.

    Molarity= 2/2=1 M

    => Normality=1*1=1 N.......(answer)

2. n factor=3

    no. of moles of aluminium hydroxide=2

    Molarity=0.2 M

    Normality=0.6N........(answer)

 

Akash Kumar Dutta
98 Points
9 years ago

1)norm.=70/32.2=1.12..since n-factor=1

2)norm.39.3/79.10=.15..since n-factor=3

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