Day 38 - Quiz 3.2 - 02.26.16

Update

Review

  1. Convert the following to moles: 6.74 g of nitrogen gas.

    1. 2.08 mol

    2. 4.16 mol

    3. 0.481 mol

    4. 0.241 mol

    5. none of the above

  2. Convert the following to grams: 2.1 moles of hydrogen peroxide (H2O2).

    1. 71.4 g

    2. 0.014 g

    3. 16 g

    4. 71 g

    5. none of the above

  3. Convert the following to number of molecules: 7.301 grams of H2.

    1. 4.585 x 10-25 molecules

    2. 8.864 x 1024 molecules

    3. 2.181 x 1024 molecules

    4. 4.362 x 1024 molecules

    5. none of the above

  4. What is the molar mass of aluminum oxide?

    1. 101.961 amu

    2. 112.944 amu

    3. 101.961 g/mol

    4. 112.944 g/mol

    5. none of the above

  5. How many moles of oxygen are in 4.21 moles of water?

    1. 6.24 mol

    2. 2.11 mol

    3. 8.42 mol

    4. 6.24 mol

    5. none of the above

Lesson

      Exit Ticket
      • Posted on the board at the end of the block.

      Homework
      • Study!

      Standard(s)
      • HS-PS1-7.
        • Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.
          • Emphasis is on using mathematical ideas to communicate the proportional relationships between masses of atoms in the reactants and the products, and the translation of these relationships to the macroscopic scale using the mole as the conversion from the atomic to the macroscopic scale. Emphasis is on assessing students’ use of mathematical thinking and not on memorization and rote application of problem-solving techniques.