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Praxis 5435 Exam Study Guide with Complete Solutions Volumetric Flask - Answer️️ -used for making liquid solutions of precise volumes, bulb shaped with narrow tube Erlenmeyer flask - Answer️️ -Used for mixing, transporting, and reacting Burette - Answer️️ -a graduated glass tube wi...

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  • September 16, 2024
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  • 2024/2025
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EXAM_SOLUTIONS GUARANTEED SUCCESS 2024/2025 ACADEMIC YEAR




©SOPHIABENNETT 9/3/24 2024/2025

, ©SOPHIABENNETT EXAM SOLUTIONS_2024/2025 Tuesday, September 3, 2024 10:30 AM



Praxis 5435 Exam Study Guide with
Complete Solutions


Volumetric Flask - Answer✔️✔️-used for making liquid solutions of precise volumes, bulb

shaped with narrow tube


Erlenmeyer flask - Answer✔️✔️-Used for mixing, transporting, and reacting

Burette - Answer✔️✔️-a graduated glass tube with a tap at one end, for delivering known

volumes of a liquid, especially in titrations.

Titration - Answer✔️✔️-a measured amount of a solution of unknown concentration is

added to a known volume of a second solution until the reaction between them is just

complete



Determines endpoint of a reaction

light microscope - Answer✔️✔️-aka optical, microscope that uses a beam of light passing

through one or more (compound) lenses to magnify an object

Digital microscope - Answer✔️✔️-A type of Microscope that use a camera and a monitor

to allow viewing the sample.

scanning electron microscope - Answer✔️✔️-a microscope that produces an enlarged,

three-dimensional image of an object by using a beam of electrons rather than light

Graticule slide - Answer✔️✔️-It is marked with a grid line and is useful only for counting

or estimating a quantity.

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, ©SOPHIABENNETT EXAM SOLUTIONS_2024/2025 Tuesday, September 3, 2024 10:30 AM


Chromatography - Answer✔️✔️-A technique that is used to separate the components of a

mixture

Analyte - Answer✔️✔️-substance analyzed or tested, generally by means of laboratory

methods

How to dilute acid - Answer✔️✔️-Add concentrated acid solution to the water. Put 2/3

total volume of water in grad. cyl. Add acid. Add water to desired volume.

Centrifugate - Answer✔️✔️-liquid component of solution (clear, not the precipitate), after

being separated in centrifuge.



In blood, blood cells settle and plasma stays on top.

Spectrophotometry - Answer✔️✔️-Measures how visible light is abosrbed by a colored

solution

Electrophoresis - Answer✔️✔️-Separation of particles based on electrical charge

Deka- - Answer✔️✔️-10 (10^1)

Kilo- - Answer✔️✔️-1000 (10^3)



1000 m in km

Hecto- - Answer✔️✔️-100

Mega- - Answer✔️✔️-10^6 (million)

Giga- - Answer✔️✔️-10^9 (billion)

Tera- - Answer✔️✔️-10^12 (trillion)

Peta- - Answer✔️✔️-10^15
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, ©SOPHIABENNETT EXAM SOLUTIONS_2024/2025 Tuesday, September 3, 2024 10:30 AM


Deci- - Answer✔️✔️-10^-1

Centi- - Answer✔️✔️-10^-2

Milli- - Answer✔️✔️-10^-3

Micro- - Answer✔️✔️-10^-6

Nano- - Answer✔️✔️-10^-9

Pico - Answer✔️✔️-10^-12

femto- - Answer✔️✔️-10^-15

Ampere - Answer✔️✔️-unit of electric current

Candela - Answer✔️✔️-luminous intensity

Mole - Answer✔️✔️-the SI base unit used to measure the amount of a substance

Avogadro's number - Answer✔️✔️-number of representative particles in a mole, 6.02 X

10^23

significant figures - Answer✔️✔️-1. Non-zeros

2. Zeros between non-zeros

3. Trailing zeros after non-zeros *if* a decimal is present

Percent error - Answer✔️✔️-|expected - observed| / expected

Isotopes - Answer✔️✔️-Atoms of the same element that have different numbers of

neutrons

Subshells - Answer✔️✔️-s, p, d, f

Noble gases - Answer✔️✔️-aka inert gases, Have low boiling points, are all gases at

room temperature

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