Chemical Stoichiometry Overview
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Questions and Answers

Stoichiometry deals with the quality of substances, not the quantities.

False

An empirical formula provides the exact number of atoms in a molecule.

False

The molecular formula C2H5OH represents dimethyl ether.

False

Atoms are extremely large in size, making them visible to the naked eye.

<p>False</p> Signup and view all the answers

Stoichiometry involves predicting reactant quantities, but not interpreting chemical analysis results.

<p>False</p> Signup and view all the answers

The atomic weight scale is established based on the mass of the lightest element.

<p>True</p> Signup and view all the answers

The formula weight of MgCl2 is 95.21 amu.

<p>True</p> Signup and view all the answers

The percent composition of Mg in Mg(NO3)2 is 20.39%.

<p>False</p> Signup and view all the answers

The number of moles of Hydrogen gas in 27g of Hydrogen is 13.4 moles.

<p>True</p> Signup and view all the answers

The number of Carbon atoms in 0.0022 gram of CO2 is 5.01x10^19.

<p>False</p> Signup and view all the answers

The empirical formula of a compound with 60% Oxygen and 40% Sulfur by mass is SO3.

<p>True</p> Signup and view all the answers

In the given stoichiometric equation, 2 moles of aqueous sodium iodide react with 1 mole of aqueous lead nitrate to produce 2 moles of solid lead iodide.

<p>False</p> Signup and view all the answers

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