stoichiometry
synthesis
- what are combination chemical
=
~
2 or more reactants combine -10 form a single product
reactions NH3 (g) +
HC1 1GI → NH4H is)
=
2 Or more formed from a single reactant
- what are decomposition chemical ( act } is ) Callis ) + ( 02191
reactions
=
burning a substance that contains C. H and / or
,
0in oxygen to
- what are combustion chemical produce carbon dioxide and water
ZC2H 5OH 502191 4C 02191+61-120
reactions (e)
+ → ie )
what a balanced chemical equation is based on
-
~
mass is neither created nor destroyed in ordinary chemical
- what is the law of conservation of changes
mass -
mole of atoms of each element must be the same on both sides
of the equation
- what is stoichiometry =
it shows the quantitative relationship of reactants and products
using a balanced chemical equation
~
establish MO1 ratio
e. of 260191+02191 → 2602191
2 Moles Of CO19 ) combine with IM01 OF 02191 produces 2
Moles of [ 0219 )
i. 2 MOHS OF CO =
2 moles of CO2
=
the reactant that is used up first in a reaction
- what are limiting reactions ~
no product will be found after it is used up
* determines the amount of products produced
- what are excess reactants =
the reactant that is present in greater quantity than necessary
to react with the quantity of the limiting reactant
- what is the percent yield =
percentage of the
Ii Yield -_
actual yield of the theoretical yield
yield
grams of actual
~
100
'
✗
- formula grams of theoretical yield
stoichiometric amount product formed when
theoretical yield __
- theoretical yield alllimiting reactant reacts to form the
desired product
- actual yield actual yield =
the amount Of product actually obtained
=
how pure a chemical is in an impure sample
- what is percent purity ~
mass of Pure substance in impure sample
g. purity =
mass of impure sample
✗ 100.1
.
- formula
=
when a solute is placed in contact with a solvent and dissolves
- what is dissolution process to form a solution
~ if solute + solvent →
homogenous solution , solute is
soluble in the solvent
~
solvent -_ substance present in the greatest amount
solute __
substance present in lesser amounts
- what are the types of aqueous 1- unsaturated solution =
solute concentration for a solvent is
solution less than its solubility limit @ a
specific temperature
2. saturated solution =
solute concentration is at the solubility limit
for a given solvent at a specific temperature
3. supersaturated solution = solute concentration exceeds its
h
generally unstable solubility limit for a given solvent @ a
and may form crystals specific temperature
upon cooling
synthesis
- what are combination chemical
=
~
2 or more reactants combine -10 form a single product
reactions NH3 (g) +
HC1 1GI → NH4H is)
=
2 Or more formed from a single reactant
- what are decomposition chemical ( act } is ) Callis ) + ( 02191
reactions
=
burning a substance that contains C. H and / or
,
0in oxygen to
- what are combustion chemical produce carbon dioxide and water
ZC2H 5OH 502191 4C 02191+61-120
reactions (e)
+ → ie )
what a balanced chemical equation is based on
-
~
mass is neither created nor destroyed in ordinary chemical
- what is the law of conservation of changes
mass -
mole of atoms of each element must be the same on both sides
of the equation
- what is stoichiometry =
it shows the quantitative relationship of reactants and products
using a balanced chemical equation
~
establish MO1 ratio
e. of 260191+02191 → 2602191
2 Moles Of CO19 ) combine with IM01 OF 02191 produces 2
Moles of [ 0219 )
i. 2 MOHS OF CO =
2 moles of CO2
=
the reactant that is used up first in a reaction
- what are limiting reactions ~
no product will be found after it is used up
* determines the amount of products produced
- what are excess reactants =
the reactant that is present in greater quantity than necessary
to react with the quantity of the limiting reactant
- what is the percent yield =
percentage of the
Ii Yield -_
actual yield of the theoretical yield
yield
grams of actual
~
100
'
✗
- formula grams of theoretical yield
stoichiometric amount product formed when
theoretical yield __
- theoretical yield alllimiting reactant reacts to form the
desired product
- actual yield actual yield =
the amount Of product actually obtained
=
how pure a chemical is in an impure sample
- what is percent purity ~
mass of Pure substance in impure sample
g. purity =
mass of impure sample
✗ 100.1
.
- formula
=
when a solute is placed in contact with a solvent and dissolves
- what is dissolution process to form a solution
~ if solute + solvent →
homogenous solution , solute is
soluble in the solvent
~
solvent -_ substance present in the greatest amount
solute __
substance present in lesser amounts
- what are the types of aqueous 1- unsaturated solution =
solute concentration for a solvent is
solution less than its solubility limit @ a
specific temperature
2. saturated solution =
solute concentration is at the solubility limit
for a given solvent at a specific temperature
3. supersaturated solution = solute concentration exceeds its
h
generally unstable solubility limit for a given solvent @ a
and may form crystals specific temperature
upon cooling
