Multiple Choice
You take an aspirin tablet (a compound consisting solely of carbon,hydrogen,and oxygen) with a mass of 1.00 g,burn it in air,and collect 2.20 g of carbon dioxide and 0.400 g water.The molar mass of aspirin is between 170 and 190 g/mol.The molecular formula of aspirin is
A) C6H8O5
B) C9H8O4
C) C8H10O5
D) C10H6O4
E) none of these
Correct Answer:

Verified
Correct Answer:
Verified
Q1: Which compound contains the highest percent by
Q2: What would be the g Al /
Q4: A 15-g sample of lithium is
Q5: SO<sub>2</sub> reacts with H<sub>2</sub>S as follows:
Q6: Naturally occurring element X exists in three
Q7: If 45.0 g of O<sub>2</sub> are mixed
Q8: A hypothetical element consists of two isotopes
Q9: Give (in order)the correct coefficients to
Q10: How many grams of potassium are in
Q11: Oxides of copper include CuO and Cu<sub>2</sub>O.You