Science Chemistry Analytical Chemistry
Portage chem 103 final
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OChem Lab Final Instrumental Analysis ACS Final Pre... LPI Level 1 Practice T
Teacher 188 terms Teacher 62 terms Teacher 120 terms
ressyshii Preview brianaminga10 Preview ccelineabuanja
1. Convert 1005.3 to exponential 1. Convert 1005.3 = larger than 1 = positive exponent, move
form and explain your answer. decimal 3 places = 1.0053 x 103
2. Convert 4.87 x 10-6 to 2. Convert 4.87 x 10-6 =negative exponent =smaller than 1, move
ordinary form and explain your decimal 6 places = 0.00000487
answer.
1. 350 pounds = ? ton 1. 350 pounds x 1 ton / 2000 pounds = 0.175 ton
2. 0.632 m = ? cm 2. 0.632 m x 100 cm / 1 m = 63.2 cm
1. 246oK - 273 = -27 oC
oK → oC (make smaller) -273
1. 246 oK = ? oC
2. 45oC x 1.8 + 32 = 113 oF
2. 45 oC = ? oF
oC → oF (make larger) x 1.8 + 32
3. 18 oF = ? oK
3. 18oF - 32 ÷ 1.8 = -7.8 + 273 = 265.2 oK
oF → oC → oK
1. Show the calculation of the 1. M = D x V = 1.49 x 18.6 = 27.7 g
mass of a 18.6 ml sample of
freon with density of 1.49 g/ml 2. D = M / V = 26..5 = 0.862 g/ml
2. Show the calculation of the
density of crude oil if 26.3 g
occupies 30.5 ml.
, 1. 0.0756 contains ? significant 1. 0.0756 contains 3 significant figures
figures.
2. 1.235 contains 4 significant figures
2. 1.235 contains ? significant
figures. 3. 0.0756 + 1.235 = 1.3106 = 1.311 (to the thousands place for 1.235)
3. 0.0756 + 1.235 = ? (give answer
to correct number of significant
figures)
1. Pepperoni Pizza - is not on periodic table (not element) - no
Classify each of the following as
element names (not compound)
an element, compound, solution
appears as more than one substance (dough, cheese,
or heterogeneous mixture and
pepperoni) = Hetero Mix
explain your answer.
2. Potassium oxide - is not on periodic table (not element) - has
1. Pepperoni Pizza
two element names = Compound
2. Potassium oxide
3. Phosphorus
3. Phosphorus - is on periodic table = Element
Classify each of the following as 1. Charcoal burns - burning always = chemical change
a chemical change or a physical
change 2. Mixing cake batter with water - mixing = physical change
1. Charcoal burns 3. Baking the batter to a cake - baking converts batter to new
2. Mixing cake batter with water material = chemical change
3. Baking the batter to a cake
Show the full Nuclear symbol 31 protons = Ga31, 39 neutrons = 70Ga31, 28 electrons = (+31 - 28 =
including any + or - charge (n), +3) = 70Ga31+3
the atomic number (y), the mass
number (x) and the correct
element symbol (Z) for each
element for which the protons,
neutrons and electrons are
shown - symbol should appear
as follows: xZy+/- n
31 protons, 39 neutrons, 28
electrons
Name each of the following 1. PF5 - binary molecular = phosphorus pentafluoride
chemical compounds. Be sure to
name all acids as acids (NOT for 2. Al2(CO3)3 - nonbinary ionic = aluminum carbonate
instance as binary compounds)
3. H2CrO4 - nonbinary acid = chromic acid
1. PF5
2. Al2(CO3)3
3. H2CrO4
Portage chem 103 final
Save
Students also studied
Flashcard sets Study guides
OChem Lab Final Instrumental Analysis ACS Final Pre... LPI Level 1 Practice T
Teacher 188 terms Teacher 62 terms Teacher 120 terms
ressyshii Preview brianaminga10 Preview ccelineabuanja
1. Convert 1005.3 to exponential 1. Convert 1005.3 = larger than 1 = positive exponent, move
form and explain your answer. decimal 3 places = 1.0053 x 103
2. Convert 4.87 x 10-6 to 2. Convert 4.87 x 10-6 =negative exponent =smaller than 1, move
ordinary form and explain your decimal 6 places = 0.00000487
answer.
1. 350 pounds = ? ton 1. 350 pounds x 1 ton / 2000 pounds = 0.175 ton
2. 0.632 m = ? cm 2. 0.632 m x 100 cm / 1 m = 63.2 cm
1. 246oK - 273 = -27 oC
oK → oC (make smaller) -273
1. 246 oK = ? oC
2. 45oC x 1.8 + 32 = 113 oF
2. 45 oC = ? oF
oC → oF (make larger) x 1.8 + 32
3. 18 oF = ? oK
3. 18oF - 32 ÷ 1.8 = -7.8 + 273 = 265.2 oK
oF → oC → oK
1. Show the calculation of the 1. M = D x V = 1.49 x 18.6 = 27.7 g
mass of a 18.6 ml sample of
freon with density of 1.49 g/ml 2. D = M / V = 26..5 = 0.862 g/ml
2. Show the calculation of the
density of crude oil if 26.3 g
occupies 30.5 ml.
, 1. 0.0756 contains ? significant 1. 0.0756 contains 3 significant figures
figures.
2. 1.235 contains 4 significant figures
2. 1.235 contains ? significant
figures. 3. 0.0756 + 1.235 = 1.3106 = 1.311 (to the thousands place for 1.235)
3. 0.0756 + 1.235 = ? (give answer
to correct number of significant
figures)
1. Pepperoni Pizza - is not on periodic table (not element) - no
Classify each of the following as
element names (not compound)
an element, compound, solution
appears as more than one substance (dough, cheese,
or heterogeneous mixture and
pepperoni) = Hetero Mix
explain your answer.
2. Potassium oxide - is not on periodic table (not element) - has
1. Pepperoni Pizza
two element names = Compound
2. Potassium oxide
3. Phosphorus
3. Phosphorus - is on periodic table = Element
Classify each of the following as 1. Charcoal burns - burning always = chemical change
a chemical change or a physical
change 2. Mixing cake batter with water - mixing = physical change
1. Charcoal burns 3. Baking the batter to a cake - baking converts batter to new
2. Mixing cake batter with water material = chemical change
3. Baking the batter to a cake
Show the full Nuclear symbol 31 protons = Ga31, 39 neutrons = 70Ga31, 28 electrons = (+31 - 28 =
including any + or - charge (n), +3) = 70Ga31+3
the atomic number (y), the mass
number (x) and the correct
element symbol (Z) for each
element for which the protons,
neutrons and electrons are
shown - symbol should appear
as follows: xZy+/- n
31 protons, 39 neutrons, 28
electrons
Name each of the following 1. PF5 - binary molecular = phosphorus pentafluoride
chemical compounds. Be sure to
name all acids as acids (NOT for 2. Al2(CO3)3 - nonbinary ionic = aluminum carbonate
instance as binary compounds)
3. H2CrO4 - nonbinary acid = chromic acid
1. PF5
2. Al2(CO3)3
3. H2CrO4
