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83 solutions

Empirical Formula

Q. In a 2.500 g sample of carbon suboxide contains 1.32 g of C and 1.8 g of O, what is a possible formula for carbon suboxide? Express your answer as a chemical formula.

Solved • Feb 11, 2020

Empirical Formula

Q. 16. The molecule capsaicin gives hot peppers their heat. The composition by mass is 71% carbon, 8.6% hydrogen, 4.6% nitrogen, and 15.8% oxygen. a. Find the empirical formula for capsaicin

Solved • Feb 11, 2020

Empirical Formula

Q. 15. An explosive has the following composition by mass: 37.02% carbon, 2.220% hydrogen, 18.51% nitrogen, and 42.25% oxygen. Find the empirical formula of the explosive.

Solved • Feb 11, 2020

Empirical Formula

Q. 17. A sample of a pure compound contains 3.04 g of nitrogen and 6.94 g of oxygen. The molar mass of this pure compound is about 90 g. Determine the empirical formula, the molecular formula, and the molar mass of this pure compound.

Solved • Feb 11, 2020

Empirical Formula

Q. Some of the formulas could be either molecular or empirical formulas; however, some can only be molecular formulas. Which of the following formulas must be molecular formulas? a) C3H4O3 b) CH c) H2O2 d) C5H9 e) C4H8O4

Solved • Feb 10, 2020

Empirical Formula

Q. What is the empirical formula of a compound composed of 3.25% hydrogen (H), 19.36% carbon (C), and 77.39% oxygen (O) by mass? Insert subscripts as needed.

Solved • Feb 10, 2020

Empirical Formula

Q. What is the empirical formula of a compound composed of 31.5 g of potassium (K) and 6.44 g of oxygen (O)? Insert subscripts as needed.

Solved • Feb 10, 2020