Molar Mass
What are the units for molar mass?
grams/mole or g/mol
In the problem below, what is my starting number? (don't forget to include units)
Convert 25.0 grams of KMnO4 to moles
25.0 grams
How many fingers do you put up if you want to use the restroom?
2 fingers (look at the sign)
In the problem below, what are you looking for? (include unit and substance)
How many moles of hydrogen, H2, are needed to react with 3.0 moles of nitrogen, N2?
moles of Hydrogen (H2)
Covalent Compounds are made up of 2 (metals, nonmetals, metalloids)
nonmetals
The first step in calculating molar mass is counting the number of atoms for each element in the compound?
How many Hydrogen atoms are in H2O?
2 hydrogen atoms
In the problem below, what do I need to find the molar mass of?
Convert 25.0 grams of KMnO4 to moles
KMnO4
If we are in the green zone, what talking level should you be at?
Inside voices (look at the sign)
In the problem below, what are you given? (don't forget include units and what the substance is)
How many moles of hydrogen, H2, are needed to react with 3.0 moles of nitrogen, N2?
3.0 moles of Nitrogen (N2)
Ionic compounds _______ electrons
exchange
The first step in calculating molar mass is counting the number of atoms for each element in the compound?
How many Hydrogen atoms are in (NH4)3Cl2?
12 hydrogen atoms
When completing the problem below, what units are going to cancel?
Convert 25.0 grams of KMnO4 to moles
grams
If you do NOT have a physical calculator, then what website can you use?
Desmos
What kind of chemical equation do you need to do a mole to mole conversion?
Balanced
Name the following ionic compound: Na2O
Sodium Oxide
What is the molar mass of CH3? (don't forget to include your unit)
15.034 g/mole
How many grams are in 3 moles of H2O if the molar mass is 18.016g/mol. (don't forget to include units and do NOT round)
54.048 grams
What should you be doing as soon as the bell rings for the start of class?
Bell Work
N2 + 3H2 --> 2NH3
How many moles of hydrogen, H2, are needed to react with 3.0 moles of nitrogen, N2? (don't forget to include units)
9 moles of Hydrogen
Name the following covalent compound: N5Br
Pentanitrogen Monobromide
What is the molar mass of Ag3(NO2)2? (don't forget to include your unit)
415.72 g/mol
Convert 64 grams of O2 to moles (don't forget to include units)
2 moles
What is one reason you would not be allowed to use the restroom in my class?
1. tardy
2. didn't do bell work
K3PO4 + Al(NO3)3 --> 3KNO3 + AlPO4
How many moles of potassium nitrate are produced when 3 moles of potassium phosphate react?
9 moles Potassium Nitrate
What type of compound can include a polyatomic ion?
Ionic Compound