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A mixture of the chlorides of sodium and potassium from 0.5000 gram of a feldspar weighs 0.1500 gram, and after solution in water requires 22.71 cc. of 0.1012 N silver nitrate for the precipitation of the chloride ions. What are the percentages of Na O and K O in the feldspar? !Answer!: 8.24% Na O; 9.14% K O. How many grams of Mn O can be obtained from 1 gram of MnO ? !Answer!: 0.8774 gram.
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