WorksheetsChemistry regents review 1
Total questions: 36
Worksheet time: 2hrs 43mins
A hydrogen ion, H+, in aqueous solution may also be written as
OH-
H2O
H3O+
H2O2
Which pH indicates a basic solution?
1
5
7
12
The table shows the molar concentrations of hydronium ions in four different solutions. Which solution has the highest pH?
(Hint: First, decide if the solution is acidic or basic. Then, decide if the solution would have the highest or lowest concentration of H3O+.)
A
B
C
D
Which relationship is present in a solution that has a pH of 6?
[H3O+] = [OH-]
[H3O+] > [OH-]
[H3O+] < [OH-]
[H3O+] + [OH-] = 7
A solution with a pH of 4.0 has a hydronium ion concentration a thousand times greater than a solution with a pH of
1.0
2.0
6.0
7.0
Compared to a solution with a pH value of 8, a solution with a hundred times lower hydronium ion concentration has a pH value of
6
7
9
10
As the pH of a solution changes from 3 to 4, the concentration of hydronium ions
decreases by a factor of 1
decreases by a factor of 10
increases by a factor of 10
increases by a factor of 1
As the pH of a solution is changed from 13 to 11, the concentration of hydronium ions
decreases by a factor of 100
decreases by a factor of 20
increases by a factor of 20
increases by a factor of 100
Which relationship is present in a solution that has a pH of 10?
[H3O+] = [OH-]
[H3O+] > [OH-]
[H3O+] < [OH-]
[H3O+] + [OH-] = 7
Which relationship is present in a solution that has a pH of 7?
[H3O+] = [OH-]
[H3O+] > [OH-]
[H3O+] < [OH-]
[H3O+] + [OH-] = 7
As the pH of a solution is changed from 3 to 1, the concentration of hydronium ions
decreases by a factor of 100
decreases by a factor of 20
increases by a factor of 20
increases by a factor of 100
As the pH of a solution changes from 2 to 5, the concentration of hydronium ions
decreases by a factor of 30
decreases by a factor of 1000
increases by a factor of 1000
increases by a factor of 30
Organic Compound having 3 carbon atoms in a chain has root word as (a)
Alkene are (a) compounds
Alkynes are (a) bonded compounds
CnH2n+2 is the general formula for (a) series .
How many valency does carbon have
(a)
Determine whether Al(OH)3 is soluble using Table F
Soluble
Insoluble
Determine whether Na2SO4 is soluble or insoluble using Table F
Soluble
Insoluble
Which substance is most soluble at 40 degrees Celsius?
KCl
KNO3
NaCl
NH3
Based on Reference Table G, what is the maximum number of grams of KCl(s) that will dissolve in 200 grams of water at 50°C to produce a saturated solution?
38 g
42 g
58 g
84 g
If pressure goes down in a container, what happens to volume when the temperature is held constant.
Increase
Decrease
If temperature goes down in a container, what happens to volume when the pressure is held constant.
Increase
Decrease
What formula would you use to solve the following: A 0.562 L container of Helium has a pressure of 9.5 atm. What volume would be necessary to decrease the pressure to 2.4 atm?
What formula would you use to solve the following: A sample of nitrogen gas was collected over water at a temperature of 23.0°C. What is the partial pressure of nitrogen if the atmospheric pressure (total) was 785 mmHg and the vapor pressure of water was 21.1 mmHg?
What formula would you use to solve the following: A container of carbon monoxide gas is at a temperature of 65.0 °C and occupies a volume of 6.5L. At what temperature would it occupy a volume of 10.2L?
Which of the following is NOT a unit of Pressure?
mmHg
atm
kelvin
psi
In the Question: A cylinder has a volume of 5.4 L of air at a pressure of 140 atm. If the volume is increased to 12.4L, what would the new pressure be? Which answer choice has the data correctly labeled?
P1=5.4L, V1=140atm; P2= 12.4L, V2= ?
P1=140atm, V1=5.4L ; P2= ?, V2=12.4L
T1=140atm, V1=5.4L ; T2= ?, V2=12.4L
There was no important data to label
