MHT CET Chemistry question
A 0.518 g sample of lime stone is dissolved in HCl and then the calcium is precipitated as . After filtering and washing the precipitate, it requires 40.0 mL of 0.250 , solution acidified with to titrate is as, . The percentage of CaO in the sample is :
Answer: (A)
Solution
Milliequivalents of = 40 x 0.25 = 10 = meq of = meq of CaO; equivalent weight of CaO = 56/2 =
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