w/v% and v/v%
Molarity
Acids Bases Buffers and pH
Naming/ isomers/ functional groups
conversions
100
Calculate the percent concentration % (w/v) of the following solution: 12.10 g of sucrose dissolved in enough water to make 550.0 mL of solution.
2.2%
100
How many moles of NaOH are in 250 mL of a 6.0 M NaOH
solution?
1.5 mol
100
Calculate the [H3O+] and [OH-]of apple juice that has a pH = 5.72.
[H3O+]=(1.9x10^-6)
[OH-]= (5.2x10^-9)
100
What hydrocarbon group is this?
aromatic group
100
units used to calculate ppb
ng/ml
200
calculate the concentration in v/v% if 20 ml of glycerin is added to 300 ml of water
6.25%
200
What is the molarity of a solution that was made by adding 3.5 g of
NaOH to water if the final volume of the solution is 0.500 L?
0.18 M
200
Identify the base (reactant side) and the conjugate acid (product side) in this reaction.
H2O (aq) + CH3-NH2 (aq) CH3-NH3+ (aq) + OH- (aq)
base = CH3-NH2 ; conj acid = CH3-NH3+
200
The gas that Menards sells is called propane. What is the condensed formula of propane?
CH3CH2CH3
200
units used to calculate ppm
micrograms/mililiters
300
30g NaCl are added to 400mL of solution what is the percent concentration?
7.5% g/mL
300
Calc. the M of (NH4)2CO3 (ammonium carbonate). If 40.0 g of (NH4)2CO3 is dissolved in 800.0 mL of soln
0.52 M
300
Of the following formulas, which one is the polyprotic acid?
H3PO4
300
name this compound problem 1 on practice exam and is it a saturated or unsaturated hydrocarbon
3,3 diethyl, 6methyloctane
saturated bc only single bonds, you can add more hydrogen
300
1 dL= how many mL
100
400
Calculate the mass of solute that would be needed to make the following solution: 100.0 mL of solution of 0.50 %(w/v) CaCl2
0.5g CaCl2
(x / 100.0 mL) *100% = 0.50 % (w/v)
400
Calculate the mass, in grams, of CaBr2 required to prepare exactly 550.0 mL of a 0.0500 M solution of CaBr2
5.49g
400
List all the strong acids
HCl, HBr, HNO3, H2SO4, HClO4
400
what is a constitutional isomer
have the same molecular formula but a different bonding arrangement among the atoms.
400
Calc the total mass in nanograms of arsenic ions in a 100.0 mL of aqueous solution that has a concentration of 70.0 ppb of arsenic ions
7000 nanograms
500
A solution contains 0.0900 g of lead in a total volume of 1050.0 mL of soln. Calculate the concentration of this solution in mg/dL.
8.5714
500
Calculate M of NH4+ . If 40.0 g of (NH4)₂CO₃ is dissolved in 800.0 mL of soln
1.08 M
500
True or False. One can make a buffer out of this pair of chemicals CH3COOH and CH3COO-
provided that both are about the same concentration.
True
500
name this compund
CH3(CH2)6CH3
octane
500
200 nanograms is how many micrograms
0.2 ng