Stoicholicious
Define stoichiometry.
-A section of chemistry related to stocks
-A section of chemistry that involves reactants and/or products in a chemical reaction to determine its quantitative data.
-A section of chemistry that studies the chemistry of molecular subunits
A section of chemistry that involves reactants and/or products in a chemical reaction to determine its quantitative data.
What is a limiting reagent?
-A reactant that gets consumed completely in a chemical reaction
-A reactant that binds to an element first in a chemical reaction
-A reactant that determines the quality of a chemical reaction’s product
-A reactant that gets consumed completely in a chemical reaction
What is an excess reagent?
-A reactant that is not completely used up once the reaction finishes
-The waste product of an element after fractional distillation
-An element that has a higher amount of protons in a chemical reaction
A reactant that is not completely used up once the reaction finishes
What is the molar mass of Calcium chloride(CaCl2)?
110.98 g/mol
This is the part of stoichiometry that allows you to determine the quantity of one part of the reaction from another
mole ratio
The tool/resource that is used to determine the molar/molecular mass of reactants and/or products.
What is the periodic table of elements.
This is the the formula for percentage yield.
What is Actual(Experimental)/Theoretical X 100
The maximum amount of product made in a reaction.
What is the Theoretical Yield?
Define mole ratio.
-The ratio between the amount of moles that two compounds have in a balanced chemical equation.
-The ratio between the distance of moles of an element from its surroundings.
-The ratio between the mass of moles that two compounds have in a reaction.
The ratio between the amount of moles that two compounds have in a balanced chemical equation.
Daily Double:
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If you react 15 grams of Mg with 20 liters of O2 to make MgO, which one is the limiting reagent?
Mg
The number of moles of KClO3 must decompose to make 9 moles of O2 in the reaction:
2KClO3 ------> 2KCl + 3O2
6 moles KClO3
Mole ratios are found here.
Coefficients of the balanced chemical reaction
This is the molar volume of any gas at standard temperature and pressure.
22.4 L/ 1 mol
Which of the below is true for limiting reagents?
-It is consumed in a chemical reaction until a certain point
-It is fully consumed
-It is consumed and it turns into excess reagents as waste
It is fully consumed
The number of grams of lithium nitrate will be needed to react with lead(IV) sulfate to produce 250 grams of lithium sulfate.
12 LiNO3 + Pb3(SO4)4 ----> 4 Li3SO4 + 3 Pb(NO3)4
What is 442.40 grams of lithium nitrate?
How many moles of solid aluminum are mixed with oxygen gas to produce 4.5 moles of aluminum oxide?
9.0 moles
What is the molar mass of Mg(OH)2?
58.3 g/mol
From the equation N2 + 3H2 → 2HN3, how many moles of hydrogen are needed to react with 1 mole of nitrogen?
3 moles
This tool/resources gives you the step by step process to find the quantities of products/reactants from given quantitative information about another product/reactant.
What is the stoichiometric map?
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This is the the 16th Amendment to the US Constitution.
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How many moles of a O2 in 67.2 L of oxygen gas?
3 moles of O2
The number of moles of H2 formed when 3.22 moles of Al are combined with 4.96 moles of HBr in the reaction 2Al + 6 HBr ----> 2AlBr3 + 3H2
What are 2.48 mol H2