Intro to Biochemistry CHEM-186-010

Question 1

Avogadro’s number/Avogadro’s Constant Equation

Answer 1

6.022 × 10²³

Question 2

The mole

Answer 2

A number in relation to molecules

Ex: Dozen = 12 in relation to amount

Question 3

Milligrams to Grams Conversion Equation

Answer 3

…………1 g p/ substance 1 mol
MG x ————————- x ———- = Gram Conversation
1000 kg 180.16 g

Question 4

Molar Mass to Grams Conversion Equation

Answer 4

……………….. # of molar mass
# of Mol(s) x ———————— = grams
mol

Question 5

Grams to Moles Conversion Equation

Answer 5

...                           # of mol
# of grams x ------------------------ = Moles
                       # of molar mass

Question 6

Avogadro’s number/Avogadro’s Constant Definition

Answer 6

Equation to convert from moles to representative particles (atoms/molecule/formula units).

Question 7

Moles to Formula Units/Representative Particles Conversion Equation

Answer 7

.. 6.022×10 23 (Avogadro’s Number)
# of mol x ————————————————— = Formula Units
​ 1 mol

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Question 8

Isotopes

Answer 8

Atoms of the same element with different numbers of neutrons

• Has different atomic masses
• Same amount of protons

Question 9

Atomic Number Determination

Answer 9

Determined by the number of protons

Question 10

Relative Abundance

Answer 10

percentage of atoms with a specific atomic mass found in a naturally occurring sample of an element

Question 11

0

Answer 11

Equation used to determine the relative abundance of each isotope

Question 12

Main types of subatomic particles in an atom

Answer 12

protons, neutrons, and electrons

Question 13

Mass Number

Answer 13

Mass number = (#protons) + (#neutrons)

Question 14

Equation for # of Neutrons

Answer 14

neutrons = mass number − (#protons)

Question 15

Isotopic notation

Answer 15

Shows the atomic number, mass number and charge of an isotope in a single symbol.