Exam 9: Stoichiometry and the Mole

The theoretical number of carbon dioxide moles produced from 3 moles of C₂H₆O is ________. C₂H₆O + O₂ → CO₂ + H₂O

The number of moles of chlorine atoms in 12.5 g of carbon tetrachloride is ________.

The correct sequence of decreasing number of atoms per formula unit in the following is ________.

A sample of calcium that contains four times Avogadro's number of atoms has a mass of ________.

The balanced equation involves the corresponding coefficients ________. NH₃ + O₂ → NO + H₂O

Which contains more carbon?

14 g of nitrogen will react with ________ g of oxygen. N₂ + 2 O₂ → 2 NO₂

Match each compound with its corresponding number of atoms per formula unit. -AL?(SO?)3

Which of the following pairs does not share the same empirical formula?

Match each compound with its corresponding percent of nitrogen. -C??H₂₆N?O?S

Which of the following percent compositions does not correspond to one of the elements of NaNO₃?

A sample of oxygen gas that contains twice Avogadro's number of molecules has a mass of ________.

0.011 moles of an element has a mass of 2.56 g. This element is ________.

A sample of methane gas that contains Avogadro's number of atoms has a mass of ________.

What is the theoretical yield in grams of K3[Fe(C₂O₄)3], if 5.700 grams of FeCL₃ is used, and K₂C₂O₄ is present in excess? FeCl₃ + 3K₂C₂O₄ → K3[Fe(C₂O₄)3] + 3KCl

Determine the molecular formula for a compound that weighs 176.13 g/mol and is 40.9% C, 54.5% O, and 4.6% H by mass.

The molar mass for Pb(CO₃)₄ is ________.

A compound has the following elemental composition: C = 58.8%, H= 13.8%, N = 27.4%. The empirical formula of this compound is ________.

Which of the following compounds has its carbon composition equal to 52.1%?

0.05 moles of a certain compound has a mass of 17.1 g. This compound may be ________.