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A 44.81 gram sample of a hydrate of Na2SO3 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, 22.40 grams

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A 44.81 gram sample of a hydrate of Na2SO3 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, 22.40 grams of the dehydrated compound remained. What is the formula of the hydrate? Use a period instead of a dot in the formula of the hydrate

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