1. HYDRATED CALCIUM PHOSPHATE HAS 7.14% WATER OF CYSTALLISATION,MOLECULAR MASS OF PHOSPHATE IS 252. IT HAS 15.18% CALCIUM, 24.6%PHOSPHORUS,4%HYDROGEN,57.11 OXYGEN.WHAT IS THE MOLECULAR FORMULA OF THE COMPOUND. 2.HOW MANY GRAMS OF OXALIC ACID SHOULD BE DISSOLVED IN 250 ML WATER TO PREPARE 0.1NORMAILTY SOLUTION.

Asked by  | 12th May, 2012, 07:49: PM

Expert Answer:

2) w = NEV /1000
       = .1  x 63  x 250 /1000
        =1.575 g of oxalic acid required.

Answered by  | 31st May, 2012, 11:07: AM

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