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empirical formula and molecular formula

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2) Two substances Q and R each have the elemental composition C = 60% h=13.3% 0=26.7% by mass
0.60 grams of each substance occupied a volume of 0.336 liters at 137 Celcius and standard pressure
a) Calculate the empirical formula and the relative molecular mass of Q and R.
B) What is the molecular formula

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The solution finds out the empirical formula and molecular formula of the substances given the elemental composition.

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