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In lab, you determine that a dry, clean evaporating dish weighs 36.296 g. You add some...

In lab, you determine that a dry, clean evaporating dish weighs 36.296 g. You add some unknown to the evaporating dish, reweigh, and get a mass of 38.445 g. After washing with water and drying the solids you re-weigh the evaporating dish and solid and get a mass of 37.81 g. What was the percent composition of NaCl in your original sample?

(Insert your answer as a percentage, not as a decimal.)

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