91Ó°ÊÓ

If you have \(0.262\) mole of iron(III) sulfate, how many oxygen atoms do you have?

Determine the mass percent of each element in magnesium phosphate.

Iron(III) oxide reacts with carbon monoxide to give iron metal and carbon dioxide. If you begin the reaction with \(24.0 \mathrm{~g}\) of iron(III) oxide and \(34.0 \mathrm{~g}\) of carbon monoxide, what is the theoretical yield in grams of carbon dioxide?

The compound ibuprofen, used in some pain relievers, has the molecular formula \(\mathrm{C}_{13} \mathrm{H}_{18} \mathrm{O}_{2}\). If \(0.250 \mathrm{~g}\) of ibuprofen is burned in oxygen, how many grams of \(\mathrm{CO}_{2}\) and \(\mathrm{H}_{2} \mathrm{O}\) will be produced?

If you have \(200.0 \mathrm{~g}\) of dinitrogen pentoxide, how many atoms of nitrogen do you have? How many atoms of oxygen do you have?

Potassium nitrate decomposes upon heating to form potassium oxide, nitrogen gas, and oxygen gas. If \(19.6 \mathrm{~g}\) of potassium nitrate have decomposed, how many molecules of oxygen gas have been formed?

Tetraphosphorus decoxide, \(\mathrm{P}_{4} \mathrm{O}_{10}\), reacts with water to form phosphoric acid. If \(52.5 \mathrm{~g}\) of \(\mathrm{P}_{4} \mathrm{O}_{10}\) reacted with \(25.0 \mathrm{~g}\) of water, how many grams of \(\mathrm{H}_{3} \mathrm{PO}_{4}\) could theoretically be produced?

Determine the mass percent of each element in aluminum sulfate.

The compound naphthalene, which is used in mothballs, contains carbon, hydrogen, and possibly oxygen. When \(0.220 \mathrm{~g}\) of naphthalene is subjected to combustion analysis, it yields \(93.66 \% \mathrm{C}\) and \(6.31 \% \mathrm{H}\). If the molar mass of naphthalene is approximately \(128 \mathrm{~g} / \mathrm{mol}\), what is its molecular formula?

Ethylene gas \(\left(\mathrm{C}_{2} \mathrm{H}_{4}\right)\) reacts with fluorine gas \(\left(\mathrm{F}_{2}\right)\) to form carbon tetrafluoride gas and hydrogen fluoride gas. If \(2.78 \mathrm{~g}\) of ethylene reacted with an excess of fluorine, how many grams of each product could theoretically be produced?