Mole Conversion
What is the Molar Mass of Oxygen?
O = 16g / mole
What are the two types of Ions and their charge?
Cations are positive
Anion are Negative
Why are Ionic Compounds are more stable?
Ionic Compounds are more stable due to their higher melting point.
What is the Lewis Dot for Sodium?
Na.
What is the electron configuration of He?
1s2
1 mole of gas is how many litters
22L in 1 mole
How do metal ions differ from Non metal ions?
Metal Ions often loose an electron that results in a positive charge and Nonmetal Ions often gain an electron that results in a negative charge.
When do Ionic Compounds generate electricity?
Ionic Compounds generate electrical current when melted or dissolved.
What is the Lewis Dot for Calcium?
Ca:
What element has the electron configuration
1s2 2s2 2p6 3s2 3p4
Sulfur
To convert from particles or atoms to mole you need to use Avogadro's constant which is what.
6.02 x 1023 atoms per mole
What is a Psudeo-Noble Gas?
It's when an Ion gains or looses an electron to complete an Octet in its outer shell.
What the difference between malleability and ductile?
Malleability means it can be hammered into shapes where ductile means it can be drawn into wire.
What is the Lewis Dot for Aluminium?
.Al:
What is the electron configuration of Beryllium?
1s2 2s2
If you have 45 L of Oxygen gas how many atoms does this make.
45 L x 1 mol / 22.4 L x 6.02 x 1023 atoms / 1 mol
= 12.1 x 1023 atoms
What are Ionic Bonds
Ionic Bonds are the electrostatic forces that hold ions together in an ionic compound.
How are alloys different from metals?
alloys are superior to metals and are composed of two or more elements of at least 1 is a metal.
What is the Lewis dot for Water?
..
H : O : H
..
Which element has the electron configuration
1s2 2s2 2p2
Carbon
If you have 12.04 x 1024 atoms of Water how many grams do you have.
12.04 x 1024 atoms x 1 mol /6.02 x 1023 atoms = 20 mol
---> H = 2 x 1 =2 O = 1 x 16 = 16
----> H2O =18g per mol
20mol x 18g / 1mol = 36g of H2O
What are the charge of Ionic Compounds?
Ionic Compounds are neutral despite being made of positive and negative ions.
Why is steel superior to Iron?
Corrosion Resistance
Ductility
Hardness
Toughness
What is the Lewis dot for Sodium Chloride (NaCl)?
..
Na : Cl :
..
Transition metal will have what orbitals?
d and f