Question

determine the pH of a 0.10 M MgCl2 solution

a. 9.62

b. 11.53

c. 7.00

d. 3.65

Thanks!

Answer #1

Determine the pH of a solution that is 0.15 M NaH2PO4 and 0.10 M
Na2HPO4 (the Ka for H2PO4- is 6.2 x10^-8). Include a chemical
equation showing the relevant equilibrium.
Please show me how you got the answer, I understand how to do
single pH calculations but not entirely sure how to do it with two
chemicals. Thanks!

Part B
Calculate the pH of a 0.10 M solution of barium
hydroxide, Ba(OH)2.
Express your answer numerically using two decimal places.
ph=
Part C
Calculate the pH of a 0.10 M solution of NaOH.
Express your answer numerically using two decimal places.
ph=
Part D
Calculate the pH of a 0.10 M solution of hydrazine,
N2H4. Kb for hydrazine is 1.3×10−6.
Express your answer numerically using two decimal places.
ph=
Part E
Calculate the pH of a 0.10 M...

a) What is the pH of a solution prepared by adding 25.0 mL of
0.10 M acetic acid (Ka=1.8 x 10^-5) and 20.0 mL of 0.10 M sodium
acetate?
b) What is the pH after the addition of 1.0 mL of 0.10 M HCl to
20 mL of the solution above?
c) What is the pH after the addition of 1.0 mL of 0.10 M NaOH to
20 mL of the original solution?

A 0.10 M HCl solution has a pH of 1.00. A 0.10 M NaOH solution
has a pH of 13.00. A 1.0 L solution in which 0.010 moles of
compound Z is dissolved has a pH of 12.00.
Compound Z is a
strong acid
strong base
weak acid
weak base

The pH of a 0.10-M solution of caffeine is 11.70. Determine Kb
for caffeine from these data:
C8H10N4O2 (aq)+ H2O(l) ⇌ C8H10N4O2H (aq) + OH (aq)

solution
[NH4+],
M
NH3], M
ΔpH on adding H+
pH on adding H+
Initial pH
pH on adding OH
ΔpH on adding OH-
a
0.10
0
2.43
2.13
4.56
9.07
4.51
b
1.0
0
2.12
2.09
4.21
8.37
4.16
c
0.050
0.050
1.14
8.38
9.52
10.06
0.54
d
0.50
0.50
0.17
9.52
9.69
9.73
0.04
e
0
0.10
0.78
9.62
10.4
11.39
0.99
pure water
2.39
2.26
4.65
12.06
7.41
Sorry I know that this is a lot but having...

If a 0.10 M aqueous solution of CH3COOH exhibits a pH of 2.87,
predict the pH of a 0.10 M aqueous solution of NaCH3COO at the same
temperature.

A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3.
Determine the pH of the solution after the addition of 100.0 mL of
HNO3. The Kb of NH3 is 1.8 × 10-5.
Please show work. a) 10.56 b) 5.28 c) 6.58 d) 8.72 e) 3.44

1. Calculate the pH (pH = –log[H+ ]) of the following solutions:
a. 0.10 M HCl
solution b. 0.010 M HCl
solution c. 0.0010 M HCl
solution d. 0.10 M NaOH
solution e. 0.010 M
NaOH
solution f. 0.0010 M NaOH
solution g. 0.10 M HC2H3O2 solution (Ka = 1.8 x 10 –5 )
h. 0.10 M NH3 solution (Kb = 1.8 x 10–5 )

The pH of a solution containing 49.0 mL of 0.10 M KOH and 50.0
mL of 0.10 M of HBr is:
a. 5.0 b. 3.0 d. 7.0 e. 4.0

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 25 minutes ago

asked 28 minutes ago

asked 36 minutes ago

asked 42 minutes ago

asked 49 minutes ago

asked 57 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago