Units units units!
Dilute it!
Don't hate, precipitate
pHun!
$toich
100
What does the unit M mean?
mols per Litre
100
What is the dilution formula?
C1V1=C2V2
100
What is a spectator ion?
An ion that does not participate in the reaction
100
What is the definition of a Bronsted-Lowry base?
A substance which can accept protons
100
When two substances react to form products, the reactant which is used up is called the...
limiting reagent
200
If we have 200.00mL solution containing 15.0g of KOH, what is it's concentration in g/L?
75.0 g/L (3 s.f)
200
If 75.0mL of 0.211M NaOH is diluted to 125mL, what is the new concentration?
0.127M
200
Is Pb(OH)2 soluble or insoluble? Use an equation to answer your question
insoluble
200
Would a solution of ethanoic acid or sulfuric acid be more electrically conductive? Why?
Sulfuric acid, strong acid, completely ionises, more ions in solution
200
What is the very first thing you do when doing a stoich problem?
WRITE A BALANCED EQUATION
300
What is the molarity of this solution?
2 M
300
How much water would I need to add to 500mL of a 2.4M KCl solution to make a 1.0 M solution?
1.2 L/1200mL
300
What products are formed when Na2SO4(aq) and Pb(NO3)2 (aq) react? Include states
PbSO4(s) and NaNO3(aq)
300
What is the concentration of hydronium ions in pure water?
1 x 10-7M
300
If 10.0 g of Al2(SO3)3 is reacted with 10.0 g of NaOH, determine the number of grams of Na2SO3 produced.
12.6 g (3 s.f)
400
What is the mass of dissolved KBr in a 300.0 mL sample of 1.20M aqueous solution?
50.0g
400
How many grams of AlCl3 are contained in 4L of a 1.25M solution?
668g
400
If 60.0mL of 1.0M AgNO3 are mixed with 25.0mL of 0.80M NaCl, what mass of precipitate forms?
2.9g
400
What is the concentration of [H3O+] in a 0.0040M solution of NaOH?
2.5 x 10-10 M
400
If 30.0g of H2SO4 reacts with 25.0g of Al(OH)3, identify the limiting reagent (show calcs)
H2SO4
500
What is the concentration of this solution in parts per million?
52 ppm
500
How many mL of 0.10M Na2S are needed to precipitate NiS from 25.0mL of 0.20M NiCl2 solution?
50mL
500
Finish this dodgy chemistry joke: if you're not part of the solution you're...
a part of the precipitate!
500
The pH of 0.1M H2SO4 (aq) is equal to..
0.7M
500
If 1.41g of Mg reacts with 3.79g of HCl, how much of the excess reagent is left over?
0.24g