Quiz #3 – % composition, EF & MF

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Presentation transcript:

Quiz #3 – % composition, EF & MF Chemical analysis indicates that a compound is 28.64% sulfur and 71.36% bromine. The molar mass of the compound is 223.94g/mol. Determine the molecular formula of the compound.

Quiz #4 – determine the molecular formula The molar mass of a compound is 148.20g/mol. Its percentage composition is 48.63% carbon, 21.59% oxygen, 18.90% nitrogen, and the rest hydrogen. Find the empirical formula for the compound. Find its molecular formula.

Quiz #5 - An automobile airbag is inflated with nitrogen produced from the decomposition of sodium azide, NaN3. The mass of nitrogen in a fully inflated airbag is 87.5g. What mass of sodium azide is required to produce the mass of nitrogen?

Quiz #6 Bubbling chlorine gas through a solution of potassium iodide results in the formation of elemental iodine. Classify the type of chemical reaction What mass of iodine can be produced from 1.5kg of chlorine?