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Joined:	28 May 2012
Post:	49

3 Jun 2012 11:40:56 IST

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How many grams of sodium hydroxide pellets containing 12%moisture are required to prepare 60 litres of 0.5N solution??

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Uppinder Chugh

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Joined: 5 May 2012

Posts: 217

3 Jun 2012 13:20:02 IST

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No. of gram equivalents( or moles as n factor NaOH is 1) in 1 lit = 0.5 => 60 lit contains 60 x 0.5 = 30 moles

= 30 x 40 = 1200gm Let x gm of NaOH is reqd. => According to the given condition, we get

Solving x is approx. = 1364 gm. Please tell if ans is correct.

ananya sharma

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Joined: 28 May 2012

Posts: 49

3 Jun 2012 19:56:46 IST

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ya its ryt...thanx again

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