Homework Answers
A buffer solution is 0.429 M in HF and 0.341 M in NaF if K, for...
A buffer solution is 0.429 M in HF and 0.341 M in NaF if K, for HF is 7.2x104, what is the pH of this buffer solution? Submit Answer Retry Entire Group 8 more group attempts remaining A buffer solution is 0.475 M in H2S and 0.388 Min KHS. IFK for H2S is 1.0 x 10", what is the pH of this buffer solution? PH Submit Answer Retry Entire Group 8 more group attempts remaining
The pK, value for HF is 3.14. Would a buffer prepared from HF and NaF with...
The pK, value for HF is 3.14. Would a buffer prepared from HF and NaF with a pH of 5.14 be considered to be an effective buffer? A buffer in which the mole ratio of NaF to HF is 1.7 has a pH of 3.36. Would this buffer solution have a greater capacity for added acid (H307) or added base (OH)? added acid added base Submit Answer Retry Entire Group 9 more group attempts remaining
Determine the pH change when 0.049 mol HCl is added to 1.00 L of a buffer...
Determine the pH change when 0.049 mol HCl is added to 1.00 L of a buffer solution that is 0.332 M in HF and 0.231 M in F". pH after addition - pH before addition = pH change = Submit Answer Retry Entire Group 9 more group attempts remaining A buffer solution contains 0.433 MCH3NH2Cl and 0.362 M CH3NH, (aniline). Determine the pH change when 0.096 mol KOH is added to 1.00 L of the buffer. pH after addition -...
A buffer solution that is 0.333 M in CH3COOH and 0.333 M in CH3 COONa has...
A buffer solution that is 0.333 M in CH3COOH and 0.333 M in CH3 COONa has a pH of 4.74 The addition of 0.01 mol of OH to 1.0 L of this buffer would cause the pH t increase slightly increase by 2 units The capacity of this buffer for added OH could be increased by the addition decrease slightly decrease by 2 units not change 9 more group attempts remaining Submit Answer Retry Entire Group A buffer solution that...
A buffer solution is made that is 0.463 M in H2S and 0.463 M in NaHS....
A buffer solution is made that is 0.463 M in H2S and 0.463 M in NaHS. If Kal for H2S is 1.00 x 10-7, what is the pH of the buffer solution? pH Write the net ionic equation for the reaction that occurs when 0.129 mol HI is added to 1.00 L of the buffer solution instead of H (Use the lowest possible coefficients. Omit states of matter. Use H30 Submit Answer Retry Entire Group 9 more group attempts remaining...
A 21.2 mL sample of 0.231 M triethylamine, (C2H5)3N, is titrated with 0.232 M hydrochloric acid....
A 21.2 mL sample of 0.231 M triethylamine, (C2H5)3N, is titrated with 0.232 M hydrochloric acid. After adding 31.0 mL of hydrochloric acid, the pH is Use the Tables link in the References for any equilibrium constants that are required. Submit Answer Retry Entire Group 9 more group attempts remaining A 28.3 mL sample of 0.358 M ethylamine, C2H5NH2, is titrated with 0.233 M hydrobromic acid. After adding 19.4 mL of hydrobromic acid, the pH is Use the Tables link...
The pH of an aqueous solution of 0.174 M sodium fluoride, NaF (aq), is This solution...
The pH of an aqueous solution of 0.174 M sodium fluoride, NaF (aq), is This solution is Submit Answer Retry Entire Group 4 more group attempts remaining
is 7.19. What mole ratio of K2 SO3 to KHSO3 is needed to prepare a buffer with a pH of 6.89? The pK value for HSO3 SO32...
is 7.19. What mole ratio of K2 SO3 to KHSO3 is needed to prepare a buffer with a pH of 6.89? The pK value for HSO3 SO32 HSO3] Submit Answer Retry Entire Group 9 more group attempts remaining
is 7.19. What mole ratio of K2 SO3 to KHSO3 is needed to prepare a buffer with a pH of 6.89? The pK value for HSO3 SO32 HSO3] Submit Answer Retry Entire Group 9 more group attempts remaining
A buffer solution is 0.409 M in CH,COOH and 0.249 M in CH3COONa . If K,...
A buffer solution is 0.409 M in CH,COOH and 0.249 M in CH3COONa . If K, for CH2COOH is 1.8x10-5, what is the pH of this buffer solution? Submit Answer Retry Entire Group 8 more group attempts remaining NEW Use the References to access important values if needed for this question. A buffer solution is 0.347 M in H3PO4 and 0.233 M in NaH,PO.If Ka for H3PO4 is 7.5 x 10-, what is the pH of this buffer solution? PH...
help please 16-18 A student measures the molar solubility of iron(III) sulfide in a water solution...
help please 16-18
A student measures the molar solubility of iron(III) sulfide in a water solution to be 1.04*10-18 M. Based on her data, the solubility product constant for this compound is Submit Answer Retry Entire Group 9 more group attempts remaining A student measures the molar solubility of silver chloride in a water solution to be 1.30x10-5 M. Based on her data, the solubility product constant for this compound is Submit Answer Retry Entire Group 9 more group attempts...
A buffer solution is 0.429 M in HF and 0.341 M in NaF if K, for HF is 7.2x104, what is the pH of this buffer solution? Submit Answer Retry Entire Group 8 more group attempts remaining A buffer solution is 0.475 M in H2S and 0.388 Min KHS. IFK for H2S is 1.0 x 10", what is the pH of this buffer solution? PH Submit Answer Retry Entire Group 8 more group attempts remaining
The pK, value for HF is 3.14. Would a buffer prepared from HF and NaF with a pH of 5.14 be considered to be an effective buffer? A buffer in which the mole ratio of NaF to HF is 1.7 has a pH of 3.36. Would this buffer solution have a greater capacity for added acid (H307) or added base (OH)? added acid added base Submit Answer Retry Entire Group 9 more group attempts remaining
Determine the pH change when 0.049 mol HCl is added to 1.00 L of a buffer solution that is 0.332 M in HF and 0.231 M in F". pH after addition - pH before addition = pH change = Submit Answer Retry Entire Group 9 more group attempts remaining A buffer solution contains 0.433 MCH3NH2Cl and 0.362 M CH3NH, (aniline). Determine the pH change when 0.096 mol KOH is added to 1.00 L of the buffer. pH after addition -...
A buffer solution that is 0.333 M in CH3COOH and 0.333 M in CH3 COONa has a pH of 4.74 The addition of 0.01 mol of OH to 1.0 L of this buffer would cause the pH t increase slightly increase by 2 units The capacity of this buffer for added OH could be increased by the addition decrease slightly decrease by 2 units not change 9 more group attempts remaining Submit Answer Retry Entire Group A buffer solution that...
A buffer solution is made that is 0.463 M in H2S and 0.463 M in NaHS. If Kal for H2S is 1.00 x 10-7, what is the pH of the buffer solution? pH Write the net ionic equation for the reaction that occurs when 0.129 mol HI is added to 1.00 L of the buffer solution instead of H (Use the lowest possible coefficients. Omit states of matter. Use H30 Submit Answer Retry Entire Group 9 more group attempts remaining...
A 21.2 mL sample of 0.231 M triethylamine, (C2H5)3N, is titrated with 0.232 M hydrochloric acid. After adding 31.0 mL of hydrochloric acid, the pH is Use the Tables link in the References for any equilibrium constants that are required. Submit Answer Retry Entire Group 9 more group attempts remaining A 28.3 mL sample of 0.358 M ethylamine, C2H5NH2, is titrated with 0.233 M hydrobromic acid. After adding 19.4 mL of hydrobromic acid, the pH is Use the Tables link...
The pH of an aqueous solution of 0.174 M sodium fluoride, NaF (aq), is This solution is Submit Answer Retry Entire Group 4 more group attempts remaining
is 7.19. What mole ratio of K2 SO3 to KHSO3 is needed to prepare a buffer with a pH of 6.89? The pK value for HSO3 SO32 HSO3] Submit Answer Retry Entire Group 9 more group attempts remaining
is 7.19. What mole ratio of K2 SO3 to KHSO3 is needed to prepare a buffer with a pH of 6.89? The pK value for HSO3 SO32 HSO3] Submit Answer Retry Entire Group 9 more group attempts remaining
A buffer solution is 0.409 M in CH,COOH and 0.249 M in CH3COONa . If K, for CH2COOH is 1.8x10-5, what is the pH of this buffer solution? Submit Answer Retry Entire Group 8 more group attempts remaining NEW Use the References to access important values if needed for this question. A buffer solution is 0.347 M in H3PO4 and 0.233 M in NaH,PO.If Ka for H3PO4 is 7.5 x 10-, what is the pH of this buffer solution? PH...
help please 16-18
A student measures the molar solubility of iron(III) sulfide in a water solution to be 1.04*10-18 M. Based on her data, the solubility product constant for this compound is Submit Answer Retry Entire Group 9 more group attempts remaining A student measures the molar solubility of silver chloride in a water solution to be 1.30x10-5 M. Based on her data, the solubility product constant for this compound is Submit Answer Retry Entire Group 9 more group attempts...
Most questions answered within 3 hours.
-
Why would natural selection not minimize costs (in the form of
symptoms) of evolved defenses? (choose...
asked 2 minutes ago -
What is true about a critical task?
Latest finish time - latest start time = 0...
asked 4 minutes ago -
A company uses a
process costing system. Its Assembly Department's beginning
inventory consisted of 56,800 units,...
asked 4 minutes ago -
a
sealed glass cylinder contains 325 g of N2 gas at 1.02 atm at 20 c....
asked 8 minutes ago -
The main difference between an equity and a nonequity alliance
is that
A
equity alliances are...
asked 7 minutes ago -
Need help with this, in JAVA, using netbeans. A
complete response will receive a positive comment...
asked 15 minutes ago -
An imprest petty cash fund of $600 was established for minor
disbursements. At the end of...
asked 20 minutes ago -
Sharpe Cutter is a small company that produces specialty knives
for paper cutting machinery. The annual...
asked 25 minutes ago -
Calculating the Ka of a weak acid from
pH:
The pH of a 0.68M solution of...
asked 26 minutes ago -
1.What process is pushing back against gravity in the very
center (the core) of sun-like stars?...
asked 46 minutes ago -
This question is from the textbook "Python for ArcGIS" by Laura
Tateosian:
Write a script "triangles.py"...
asked 44 minutes ago -
Which of the following is an impediment that makes it
difficult for firms to achieve the...
asked 45 minutes ago