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8 questions
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  • Q1
    The molar mass of an element is derived from which of the following
    Atomic number
    Electron configuration
    Atomic Mass
    Group number
    30s
    HS-PS1-1
  • Q2
    What is the molar mass of NaOH (Sodium Hydroxide)
    Question Image
    31g/mol
    40 g/mol
    39g/mol
    30s
    HS-PS1-1
  • Q3
    The decomposition of hydrogen peroxide (H2O2) provides sufficient energy to launch a rocket. What is the molar mass of Hydrogen peroxide
    Question Image
    34g/mol
    33g/mol
    18g/mol
    30s
    HS-PS1-1
  • Q4
    How many moles is 1.50 x 10^23 molecules of NH3?
    Question Image
    9.03 moles
    4.01 moles
    0.2491 moles
    30s
    HS-PS1-1
  • Q5
    How many moles are in 75 grams of N2O3
    Question Image
    7500 moles
    1.986 moles
    0.986 moles
    30s
    HS-PS1-1
  • Q6
    At STP, how many moles are in 67.2 Liters of Sulfur gas
    0.99 moles
    3 moles
    0.333 moles
    30s
    HS-LS4-6
  • Q7
    At standard temperature and pressure, pressure is _________ and temperature is _____
    1 atm; 0 degrees celsius
    273 atm ; 273 degrees celsius
    30s
    HS-PS1-1
  • Q8
    What is the smallest representative particle of a NaOH
    Atom
    Molecule
    30s
    HS-PS1-1

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