MTL 200 LAB 4 LEAD-TIN PHASE DIAGRAM
COMPREHENSIVE STUDY GUIDE 2026 FULL
QUESTIONS AND SOLUTIONS GRADED A+
◍ Beaker.
Answer: Glassware that measures volume in milliliters (mL).
◍ When you are finished using a bunsen burner you should:A) Leave it on for
the next person to use. It's the only considerate choice.B) Cover the burner
with an inverted beaker to suffocate the flame.C) Pull off the hose
connecting the burner to the gas. The burner won't have gas, so it won't be
on fire.D) Turn off the gas. Duh!.
Answer: D) Turn off the gas. Duh!
◍ triple point.
Answer: where three phases intersect on a phase diagram - they are all in
equilibrium with each other here
◍ Chromatography Paper.
Answer: A separation method which exploits molecular structure . Some
molecules will be more attracted to the surface than others and therefor
capillaries of the paper will push pigments upwards.
◍ solid solutions symbols.
Answer: lowercase greek letters
◍ Distillation.
Answer: A separation method that exploits differences in boiling point.
When a mixture is heated, the lower boiling substance will boil off (become
a vapor) first leaving behind the higher boiling substance(s). The vapor must
be recondensed and allowed to collect in a separate container.e.g. water,
copper (II) sulfate and dirtB
, ◍ Decomposition Reaction.
Answer: A--->B+C+...e.g. ammonium chloride ---> ammonia +
hydrochloric acidNH4Cl ---> NH3 + HCl
◍ Erlenmeyer Flask.
Answer: Glassware that is usually used for titration collection due to its lack
of spilling.
◍ Indicator Phenolphthalein.
Answer: Turns from clear to pink
◍ component.
Answer: pure metals and/or compounds of which an alloy is composed
◍ Density.
Answer: The amount of matter in a substance.
◍ Colors Observed.
Answer: The color of a substance depends on the wavelength of light
absorbed or reflected/transmitted- When a substance absorbs all the
wavelengths of visible light (380 nm-750 nm) it will appear black-opaque
substances, when no visible light is absorbed (all wavelengths reflected) the
substance appears white
◍ Double Replacement Reaction.
Answer: AB + CD ---> CB + ADe.g. silver nitrate + iron(III) chloride --->
silver chloride + iron(III) nitrate3 AgNO3 + FeCl3 ---> 3 AgCl + Fe(NO3)3
◍ phases present.
Answer: determined by the temperature-composition point on the diagram :)
◍ What do you neutralize an alkaline (basic) spills with?.
Answer: Acetic Acid (CH₃COOH) aka Vinegar
◍ phase.
Answer: a homogeneous portion of a system that has uniform physical and
chemical characteristics- If more than one phase is present in a given
system, each will have its own distinct properties, and a boundary separating
COMPREHENSIVE STUDY GUIDE 2026 FULL
QUESTIONS AND SOLUTIONS GRADED A+
◍ Beaker.
Answer: Glassware that measures volume in milliliters (mL).
◍ When you are finished using a bunsen burner you should:A) Leave it on for
the next person to use. It's the only considerate choice.B) Cover the burner
with an inverted beaker to suffocate the flame.C) Pull off the hose
connecting the burner to the gas. The burner won't have gas, so it won't be
on fire.D) Turn off the gas. Duh!.
Answer: D) Turn off the gas. Duh!
◍ triple point.
Answer: where three phases intersect on a phase diagram - they are all in
equilibrium with each other here
◍ Chromatography Paper.
Answer: A separation method which exploits molecular structure . Some
molecules will be more attracted to the surface than others and therefor
capillaries of the paper will push pigments upwards.
◍ solid solutions symbols.
Answer: lowercase greek letters
◍ Distillation.
Answer: A separation method that exploits differences in boiling point.
When a mixture is heated, the lower boiling substance will boil off (become
a vapor) first leaving behind the higher boiling substance(s). The vapor must
be recondensed and allowed to collect in a separate container.e.g. water,
copper (II) sulfate and dirtB
, ◍ Decomposition Reaction.
Answer: A--->B+C+...e.g. ammonium chloride ---> ammonia +
hydrochloric acidNH4Cl ---> NH3 + HCl
◍ Erlenmeyer Flask.
Answer: Glassware that is usually used for titration collection due to its lack
of spilling.
◍ Indicator Phenolphthalein.
Answer: Turns from clear to pink
◍ component.
Answer: pure metals and/or compounds of which an alloy is composed
◍ Density.
Answer: The amount of matter in a substance.
◍ Colors Observed.
Answer: The color of a substance depends on the wavelength of light
absorbed or reflected/transmitted- When a substance absorbs all the
wavelengths of visible light (380 nm-750 nm) it will appear black-opaque
substances, when no visible light is absorbed (all wavelengths reflected) the
substance appears white
◍ Double Replacement Reaction.
Answer: AB + CD ---> CB + ADe.g. silver nitrate + iron(III) chloride --->
silver chloride + iron(III) nitrate3 AgNO3 + FeCl3 ---> 3 AgCl + Fe(NO3)3
◍ phases present.
Answer: determined by the temperature-composition point on the diagram :)
◍ What do you neutralize an alkaline (basic) spills with?.
Answer: Acetic Acid (CH₃COOH) aka Vinegar
◍ phase.
Answer: a homogeneous portion of a system that has uniform physical and
chemical characteristics- If more than one phase is present in a given
system, each will have its own distinct properties, and a boundary separating
