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Questions and Answers
The formula weight of MgCl2 is 95.21 amu.
The formula weight of MgCl2 is 95.21 amu.
True (A)
The percent composition of Mg in Mg(NO3)2 is 16.39%.
The percent composition of Mg in Mg(NO3)2 is 16.39%.
True (A)
Avogadro's number is 6.02x10^23 items.
Avogadro's number is 6.02x10^23 items.
True (A)
The no. of moles of Hydrogen gas in 27g of Hydrogen is 13.4 moles.
The no. of moles of Hydrogen gas in 27g of Hydrogen is 13.4 moles.
The empirical formula of a compound with 60% Oxygen and 40% sulfur is SO3.
The empirical formula of a compound with 60% Oxygen and 40% sulfur is SO3.
In a stoichiometric calculation, a balanced chemical equation provides combining ratios in units of grams.
In a stoichiometric calculation, a balanced chemical equation provides combining ratios in units of grams.
Stoichiometry is the aspect of chemistry that deals with the quantities of substances.
Stoichiometry is the aspect of chemistry that deals with the quantities of substances.
An empirical formula specifies the number of atoms in a molecule.
An empirical formula specifies the number of atoms in a molecule.
A molecular formula and an empirical formula can be the same for all compounds.
A molecular formula and an empirical formula can be the same for all compounds.
The atomic weight scale is established by choosing an element as a standard with a numerical value.
The atomic weight scale is established by choosing an element as a standard with a numerical value.
Stoichiometry involves only predicting reactant quantities and not interpreting chemical analysis results.
Stoichiometry involves only predicting reactant quantities and not interpreting chemical analysis results.
Structural formulas reveal differences between compounds that are not shown in their common molecular formulas.
Structural formulas reveal differences between compounds that are not shown in their common molecular formulas.
