Mineral pyrolusite mno2 manganese oxide is a compound of, Ask an Expert

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Mineral pyrolusite MnO₂, Manganese Oxide is a compound of manganese-55 and oxygen-16. determine the empirical formula of pyrolusite If 63% of the mass of pyrolusite is due to manganese,?

if potassium bromide of 25.5 grams is dissolved in enough H₂O to make 1750 mL of solution, determine the molarity of the solution?

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Category:- Chemistry
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