Chap 7 Flashcards
In the reaction
HNO2 + H2O > H3O+ + NO2-
The conjugate acid of water is______
A) HNO2
B) H2O
C)H2O+
D) NO2
C) H2O+
In the reaction
HNO2 + H20 > H3O+ + NO2-
NO2- is the_____
A) Conjugate base of H2O
B) Conjugate base of HNO2-
C) Conjugate acid of HNO2-
D)Conjugate base of H3O+
B) Conjugate base of HNO2-
Which of the following is the correct statement concerning the equation below? HSO4- + H2O > H3O+ + SO42- A) HSO4- is the Conjugate base of SO4- B) HSO4- is the Conjugate base of H3O+ C) H2O is the Conjugate base of HSO4- D) SO42- is the Conjugate base of HSO4-
D) SO42- is the Conjugate base of HSO4-
Whenever an equilibrium constant, Keq, has a value greater than 1, which of the following statements is true at equilibrium?
A) The concentration of reactants is greater than the concentration of the products.
B) The concentration of the products is the same as the concentration of reactants.
C) The concentration of the products is greater than the concentration of the reactants.
D) Relative composition of reaction measure cannot be predicted.
Answer:C
When a reaction is at equilibrium,
A) It has no products
B) the rate of the forward reaction is equally to the rate it’s reverse
C) it occurs very quickly using up all of the reactants
D) it produces the same amount of product as reactant
Answer: B
The equation: C(s) + O2(g) > CO2(g) Has the following equilibrium constant expression. A) Keq= [C][O2]/[CO2] B)Keq= [CO2]/[O2] C) Keq= [O2]/[CO2] D [CO2]/[C][O2]
Answer:B
Which will not increase the amount of ammonia at equilibrium?
A) increasing the concentration of N2
B) increasing the concentration of H2
C) increasing the concentration of N2 and H2
D) addition of a catalyst
Answer:D
The equation: N2(g) + 3H2(g)> 2NH3(g) Has the following equilibrium constant expression: A) Keq= [N2][H2]/[NH3] B) Keq= [NH3]/[N2][H2] C) Keq= [N2][H2]^3/[NH3]^2 D) Keq= [NH3]^2/[N2][H2]^3
Answer: D
Summarize Biochemistry link diving mammals, oxygen and myoglobin
In this biochemistry link it talked about how myoglobin comes in two parts. They were Domyglobic which does not carry O3 and oxmyglobic which carries O2
Summarize Biochemistry Link Plants as PH Indicators
The Biochemistry link talks about the purple cabbage and how to get the solution. The red solution is an acid solution, The violet, green, yellow and blue is a basic solution
What are acids and bases?
Acids: taste sour, blue litmus paper ink, and will dissolve some metals.
Bases: Taste Bitter, Red Litmus paper blue, feel slippery
What is the equation for equilibrium constant?
Keq= [C]c [D]d/[A]a[B]b
A soloution in which the concentration of H+ is greater than the concentration of OH- will
A) have a pH greater than 7.0 and be basic
B) have a pH less than 7.0 and be basic
C) have a pH greater than 7.0 and acidic
D) have a pH less than 7.0 and acidic
Answer:D
One liter of a solution is found to contain 0.022 moles of HCI. Calculate the pH of a solution. Assume complete dissociation. A) pH= 0.022 B) pH= 1.00 C) pH=2.2 D) pH= 1.66
Answer:D
When we talk about pH we are referring to the concentration of hydronium Ions present. If the concentration of hydronium in a solution is 1.0 x 10^-8 M, what is the hydroxide ion concentration?
A) 1.0 x 10^-6 M
B) 9.0 x 10^-8
C) the larger the pKa of an acid, the stronger the acid
D) The concentration can be predicted
Answer:D
