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U8.3 Study Guide (The Mole and Molar Mass)

Quiz by Aaron Holley

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17 questions
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  • Q1

    A unit of measurement used in chemistry to represent the number of representative particles of a substance is called ______.

    atomic number

    the mouse

    the kilogram

    the mole

    30s
  • Q2

    The mole is defined as ____ the mass of exactly _____ of _____.

    number of atoms, 12 grams, natural carbon

    number of atoms, 14 grams, nitrogen-14

    number of protons, 14 grams, nitrogen-14

    number of atoms, 12 grams, carbon-12

    30s
  • Q3

    Which of the following are representative particles used in chemistry?

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    60s
  • Q4

    One mole is equal to ____ representative particles of a substance

    3.1415

    6.626 x 10-34

    6.022 x 1032

    6.022 x 1023

    30s
  • Q5

    6.022 x 1023 is called ________ in honor of the famous Italian chemist ____ 

    Avocado's number, Amedeo Avogadro

    Acornucopia's number, John Smith

    Avogadro's number, Amedeo Avogadro

    Asymmetry integer, Mehmet Oz

    30s
  • Q6

    How many carbon atoms can be found in 25 molecules of propane (C3H8)?

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    60s
  • Q7

    How many hydrogen atoms can be found in 25 molecules of propane (C3H8)?  Type your answer in the space below (whole numbers only).

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    60s
  • Q8

    How many moles of oxygen can be found in 17  moles of sucrose (C12H22O11)?  Type your answer in the space below (whole numbers only).

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    60s
  • Q9

    How many moles of carbon can be found in 5  moles of sucrose (C12H22O11)?  Type your answer in the space below (whole numbers only).

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    60s
  • Q10

    How many moles of hydrogen can be found in 13  moles of sucrose (C12H22O11)?  Type your answer in the space below (whole numbers only).

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    60s
  • Q11

    The mass of one mole of any substance is called its ______.

    molar volume

    average atomic mass

    atomic mass

    molar mass

    30s
  • Q12

    What is the mass of one mole of cobalt?  (Type your answer to three decimal places)

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    30s
  • Q13

    One mole of different substances always has the same mass.

    false
    true
    True or False
    30s
  • Q14

    What is the molar mass of calcium chloride (CaCl2)?  Type your answer to two decimal places.  

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    300s
  • Q15

    What is the molar mass of potassium phosphate?  Type your answer to two decimal places.

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    300s

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