BIOLOGY 190L FINAL EXAM STUDY GUIDE 2025/2026
COMPLETE QUESTIONS WITH CORRECT DETAILED
ANSWERS || 100% GUARANTEED PASS <RECENT
VERSION>
Mass .....Answer.......the amount of matter in something. Mass is
the property of a substance that gives it inertia (kg) (g)
Length .....Answer.......The distance between two points. The basic
unit of measure of length is the meter(m)
Volume .....Answer.......The amount of space occupied by
something. The basic unit of measure is the liter (l)
Scientific Notation .....Answer.......2.78 x 10^2 = 278
kilogram .....Answer.......kg, one thousand grams
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Avogadro's number .....Answer.......6.02 x 10^23
MoS .....Answer.......vol(liters)x M (moles per liter) x MW (grams
per mole)
Percent solutions .....Answer.......% solutions = grams of solute /
100 mL
Stock solutions .....Answer.......C1V1=C2V2
Acidic solution .....Answer.......pH< 7
Basic solution .....Answer.......pH>7
pH equation .....Answer.......pH = -log[H+]
example: H+ = 10^-7
pH=-log(10^-7)= -(-7)=7 which would be neutral
What is the basic unit of mass ? .....Answer.......Kilogram (kg)
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Molarity (m) is expressed by ? .....Answer.......mol/L
Using scientific notation, convert 1 uL (microliter) to the
appropriate volume in L (liters). .....Answer.......1.0x10^-6 L
What is the concentration of OH- ([OH-]) for a solution at pH
6.0? .....Answer.......10^-8 M
Which of the following is most accurate at measuring small
volumes such as uL (microliters)? .....Answer.......Micropipettes
How many grams of glucose do you need to prepare 50 mL of
15% glucose solution? .....Answer.......7.5 g
Soda is a base .....Answer.......False
Beakers and Erlenmeyer Flasks .....Answer.......are approximate
and serve as reference points only