Chemistry, asked by Anonymous, 2 months ago

A solution of 1.5g mass of iron ore was prepared by dissolving H2SO4 in a solution of 100ml. 22ml of 0.02M
K2Cr2O7 solution is required to titrate 25ml of the obtained solution. What is the percentage of pure iron?​?
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Answered by umeshnirmal04
3

Answer:

A fort has 20 pillars. If each pillar is 35 feet high with a diameter of 1.25 feet, find the cost of polishing all the pillars at the rate of Rs. 60 per sq. feet.

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