Flashcards in 1.2 Amount of Substance Deck (12):
What is a mole?
6.02 * 1023 particles. 1 mole of C12= 12g
What is the mole equation?
mass= moles * Mr
What is the concentration equation?
concentration * volume (cm) moles= ——————-——————— 1000
What is the ideal gas equation?
PV=nRT R=8.131 T= K (273c) P=Pa V=m3
How do you convert to m3 from cm?
cm3—> *10 -6 —> m3
How do you convert from dm to m?
dm3—> *10 -3 —> m3
What is the empirical formula?
Simplest whole number ratio of atoms in a molecule
What is the molecular formula?
The actual number of atoms in a molecule
How do you find the empirical formula?
1) Balance the equation 2)Mass or % divide by Mr 3)Divide by the smallest number 4) Make a whole number ratio
What is the theoretical yield?
The amount of product that we should have
What is the percentage yield?
Actual amount divided by theoretical