Moles and Molar Mass
What is the Molar Mass of CO2?
44.01 g/mol
Al has a smaller atomic radius than Ar? True or False.
False. Ar has a smaller atomic radius than Al.
Does all pure substances have a fixed composition?
Yes.
How many moles of H20 (11 g)?
0.61 moles
In terms of Ionization Energy, the larger the atomic radius the weaker or stronger attraction to its ve-.
The larger the atomic radius the weaker the attraction.
Elements and Compounds
What is the Molar Mass of H2SO3?
82.08 g/mol
Why are metals easier to lose electrons?
The nucleus doesn't have a stronger attraction to ve-.
Beach sand is a ___ mixture.
Heterogeneous.
How many moles of CH4 (5 g)?
0.31 moles
Why are nonmetals easier to gain electrons?
The nucleus has a stronger attraction to ve-.
Kool Aid is a _____mixture.
Homogeneous.
What is the Molar Mass of C12H22O11?
342.3 g/mol?
What is Ionization Energy?
Energy required to remove an electron from a gaseous atom.
Elements are composed of the same _____.
Atom.