AVC test3-makeup-F24

Front

What type of bonding is present in SF6?

Back

Covalent/Molecular

Front

What is the concentration of sodium bicarbonate after titration with 12.4 mL of 0.248 M hydrochloric acid?

Back

0.297 M

Front

What is the formal charge on the oxygen atom in a Lewis dot structure if it has 6 valence electrons and is bonded to two other atoms?

Back

-1

Front

What type of bonding is present in KCl?

Back

Ionic

Front

How many total valence electrons are in CO2?

Back

16

Front

Define ionic bonding.

Back

Ionic bonding is the electrostatic attraction between oppositely charged ions, typically formed when an electron is transferred from one atom to another.

Front

Define covalent bonding.

Back

Covalent bonding is the sharing of electron pairs between atoms, typically occurring between nonmetals.

Front

What is the significance of formal charge in Lewis structures?

Back

Formal charge helps determine the most stable structure by indicating the distribution of electrons among atoms.

Front

How do you calculate the total number of valence electrons in a molecule?

Back

Add the valence electrons of each atom in the molecule, considering the number of atoms and their group number in the periodic table.

Front

What is the relationship between molarity and volume in a titration?

Back

Molarity (M) is the number of moles of solute per liter of solution; in titrations, it helps determine the concentration of reactants.