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WorksheetsChemistry 1B quiz Buster 3
Total questions: 15
Worksheet time: 34mins
Which of the following does not influence the rate of reactions?
Concentration
Catalyst presence
Volume
Temperature
What is the rate law for N2 + O2 -> 2NO?
rate = [N2] + [O2]
rate = [N2] [O2]
rate = k [N2] [O2]
rate = k [N2]m [O2]n
How is the order of a reaction determined?
Using k
Experimental data
Using molecular weight and concentration
Based on how much reactant was used
What would be the rate of the following reaction if you had 0.3M of HCl and 0.2M of NaOH?
K = 0.0277, HCl is 2nd order, NaOH is 1st order.
0.0005 M/s
0.018 M/s
0.0277 M/s
This needs to be determined experimentally
Which one of the following is true about catalysts
They increase the reaction rate by acting as reactants
They reduce the activation energy without physically changing in the reaction
Catalysts increase the activation energy of the reaction
They have no impact on the reaction rate
Which direction would this reaction shift if more O2 was added?
CH4 + 2O2 -> CO2 + 2H2O
The reaction would shift to the left
The reaction would shift to the right
There would be no change
We need more information to solve this
Calculate the Kp of this reaction, where you have 4kPa of N2, 14kPa of H2 and 20kPa of NH3.
N2 + 3H2 -> 2NH3
32
3.2 x10-3
3.2 x 10-8
There is not enough information to answer this
What is the equilibrium constant of the following reaction if the reverse reaction has an equilibrium constant of 5.0 x 10-4?
NaNO3 (aq) + Li+ (aq) -> LiNO3 + Na+
5 x 10-4
5 x 104
2 x 10-3
2 x 103
Which of these does NOT impact equilibrium?
Concentration
Pressure
Temperature
Catalysts
What is the pH of 0.5M NaOH?
0.3
-0.3
13.7
7.5
What are the components of an effective buffer for a solution at pH 6?
A strong base
Compounds with a similar pH to the solution
A compound that can dissociate in solution
Both a and b
Which of the following is correct about the collision model?
The orientation of reactants upon collision is insignificant
Collisions can reduce the likelihood of reaction
Temperature has no significant impact on this model
Activation energy needs to be met for the reaction to proceed
What is the conjugate acid to CH3COO-?
CH3COOH
CH4COO
CH2COO-2
None of the above
A ____ Ka indicates a ____ acid.
High; weak
Low; weak
High; strong
Low; strong
You add 0.02 moles of both H2 and Cl2 to make 2HCl. What is the Kc if the amount of Cl drops by 0.01 moles?
4
1
16
0.01
