Calculate the mass percentage shares of Na2O and K2O in the sample?

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Ammmir

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From a sample of rock mass 1.50 g was obtained by analysis of 0.2560 g mixture of NaCl and KCl. From this mixture of precipitation perchloric acid (HClO4) was obtained 0.185 g KClO4 (potassium perchlorate). Calculate the mass percentage shares of Na2O and K2O in the sample.
M (KCl) = 74.555 g / mol
M (KClO4) = 138.6 g / mol
M (K2O) = 94.2 g / mol
M (NaCl) = 58.5 g / mol
M (Na2O) = 62g/mol
 
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