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☆☆☆☆☆Cards in this guide (13)
What is the purpose of a catalyst
a catalyst provides a different path for a reaction to occur
To lower the activation energy of a reaction
What kind of reaction is a neutralization reaction
An acid-base reaction that leaves no excess H+ or OH-
What kind of fraction has a value less than 1
1/2 is less than one.
What does a buffer do
It resists a change in pH when H+ or OH- is added to a solution
What property is used to calculate the pH of a solution
The hydrogen ion concentration in mol/L
What is true of a Lewis acid
A Lewis acid accepts electron pairs.
What product of an acid-base reaction is an ionic compound
A salt
Which of the following is an example of a conjugate acid-base pair
H2S and HS-
What is true of a Brnsted Lowry base
Bornsted Lowry base is an acid base reaction theory. The ideal came from Johannes Nicolaus Bronsted and Thomas Martin Lowry in 1923. The theory is that acid can lose or donate a proton.
What is an example of bronsted Lowry base
NH3
What is the pOH of a solution whos OH- is 9.31 x 10-2 M
pOH = -log [OH-] = -log 9.31x10^-2 = 1.03 = pOH
What of the following is a characteristic of a weak acid
It does not dissociate completely in water
which of the following is an example of an Arrhenius acid
HI
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