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Mole, Bonding, Naming & Polarity Practice, Study notes of Geometry

Geometry

Part II: Draw the Lewis Dot Structure & Shape of each molecule below. (See notes for help). Lewis Structure. # bonding e- conc.

Typology: Study notes

2022/2023

Uploaded on 02/28/2023

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Mole, Bonding, Naming & Polarity Practice Name:_____________________________________Block:_____
Part I: Solve each problem. Clearly show all your work. Round answers to the correct number of significant
figures and include appropriate units.
1. How many moles of SO2 are in 2.12 grams of SO2?
2. How many grams of C2H6 are in 5.02 moles of C2H6?
3. How many particles of NO2 gas are in 41.9 grams of NO2 gas?
4. How many particles of potassium oxide are in 2.0 moles of K2O?
5. How many grams of lithium bromide are in 8.04 x 1024 particles of LiBr2?
6. How many grams of dinitrogen tetroxide gas are in 4.3 x 1026 molecules of dinitrogen tetroxide gas?
7. How many particles of calcium hydroxide are in 3.99 grams of calcium hydroxide?
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Download Mole, Bonding, Naming & Polarity Practice and more Study notes Geometry in PDF only on Docsity!

Mole, Bonding, Naming & Polarity Practice Name:_____________________________________Block:_____

Part I: Solve each problem. Clearly show all your work. Round answers to the correct number of significant figures and include appropriate units.

  1. How many moles of SO 2 are in 2.12 grams of SO 2?

  2. How many grams of C 2 H 6 are in 5.02 moles of C 2 H 6?

  3. How many particles of NO 2 gas are in 41.9 grams of NO 2 gas?

  4. How many particles of potassium oxide are in 2.0 moles of K 2 O?

  5. How many grams of lithium bromide are in 8.04 x 10^24 particles of LiBr 2?

    1. How many grams of dinitrogen tetroxide gas are in 4.3 x 10^26 molecules of dinitrogen tetroxide gas?
    2. How many particles of calcium hydroxide are in 3.99 grams of calcium hydroxide?

Part II: Draw the Lewis Dot Structure & Shape of each molecule below. (See notes for help). Lewis Structure # bonding e-^ conc.

lone

e- pairs Total e- conc. Picture of Shape (molecular geometry) Shape Name

  1. O 2
  2. N 2
  3. SiS 2
  4. CClBr 3
  5. OI 2
  6. BI 3 (boron is an exception: only needs 6 valence e-)
  7. NI 3

Part VI: Molecular Polarity and Solubility

  1. Determine whether each molecule is polar or nonpolar.

a) b)

c) d)

  1. Examine the water molecule below. Determine whether water is polar or nonpolar. Explain your reasoning.
  2. Determine whether each molecule is polar or nonpolar. Then circle ALL molecules that would be soluble (i.e. dissolve) in water.

a) b)

c) d)

G-

G+ G+

G+

G+

G+

G+

G-

G+ G+

G–