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Safrole, one of the flavor molecules in sassafras, contains only C, H, and O. Combustion of 10.0 g of safrole produces 27.13 g of CO₂ and 5.555 g of H₂O. Determine the molar mass of the compound if it is between 150.0 and 220.0 g/mol. Provide an answer to four significant figures.

The oxidation number of aluminum in Al³⁺ is:

How many molecules are in 25.8 moles of CO₂? Enter answer as X.XXEXX for scientific notation.

In the reaction between HNO₃ and Ba(OH)₂ (assume complete reaction of the Ba(OH)₂), the spectator ions are:

If 365 mL of 0.285 M MgCl₂ is added to 235 mL of 0.215 M (NH₄)₃PO₄, how many moles of Mg₃(PO₄)₂ precipitate will be formed? The balanced equation is:  

What is the oxidation number of S in the compound Na₂S₂O₅?

Determine the molar mass of C₆H₁₂O₆. Provide an answer to two decimal places.

65.0 mL of 0.250 M LiCl is added to a 1.000 L volumetric flask and the flask is filled with water. Calculate the [Li⁺] concentration in the diluted solution.

What quantity in moles of CH₃OH are there in 150.0 mL of 0.210 M CH₃OH?

Consider the following sets: U={10,11,12,13,14,15,16,17,18,19} P={10,12,14,15,17} Q={11,13,15,16,18} R={10,12,16,17,19} Provide in set roster notation {}, the elements of the following sets:a) R’ ∩ Q’b) Q’ U P ∩ Rc) Draw Venn diagram for part-b