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5. -/0.1 points 0/4 Submissions Used A flask is charged with 0.150 mol of A and...
19. + -10.11 points 0/4 Submissions Used My Notes A flask is charged with 0.110 mol...
19. + -10.11 points 0/4 Submissions Used My Notes A flask is charged with 0.110 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction. A(g) → B(9) The following data are collected. times (s) 0 40 80 120 160 moles of A 0.110 0.065 0.050 0.030 0.020 (a) Calculate the number of moles of B at each time in the table. Os mol 40 s mol 80 s mol 120 s mol...
A flask is charged with 0.120 mol of A and allowed to react to form B...
A flask is charged with 0.120 mol of A and allowed to react to
form B according to the following hypothetical gas-phase
reaction.
A(g) B(g)
The following data are collected.
times (s)
0
40
80
120
160
moles of A
0.120
0.062
0.041
0.033
0.019
(a) Calculate the number of moles of B at each time in the
table.
0 s
_mol
40 s
_mol
80 s
_mol
_120 s
mol
160 s
_mol
(b) Calculate the average rate of...
Part 1.) A flask is charged with 0.110 mol of A and allowed to react to...
Part 1.)
A flask is charged with 0.110 mol of A and allowed to react to
form B according to the following hypothetical gas-phase
reaction.
A(g) B(g)
The following data are collected.
times
(s)
0
40
80
120
160
moles of
A
0.110
0.070
0.043
0.032
0.024
(a) Calculate the number of moles of B at each time in the
table.
0 s
__ mol
40 s
__ mol
80 s
__ mol
120 s
__ mol
160 s
__...
A flask is charged with 0.124 mol of A and allowed to react to form B...
A flask is charged with 0.124 mol of A and allowed
to react to form B according to the reaction A(g)
B(g). The following data are obtained
for A as the reaction proceeds:
The average rate of disappearance of A between 20.0 s and 40.0 s
is ________ mol/s
Select one:
A. 1.4 × 10–3
B. 7.1 × 10–3
C. 8.5 × 10–4
D. 1.7 × 10–3
E. 590
Time (S) 0.0 10.0 20.0 30.0 40.0 Moles of A 0.124...
A flask is charged with 2.78 mol of A and allowed to react to form B...
A flask is charged with 2.78 mol of A and allowed to react to form B according to the reaction A(g) →B(g). The following data are obtained for [A] as the reaction proceeds: Time (s) mols of A 0.0 2.78 10.0 2.43 20.0 2.18 30.0 2.02 40.0 1.89 50.0 1.70 60.0 1.58 The average rate of disappearance of A for the first 30s is _ mol/s. *Please report 2 significant figures. Numbers only, no unit. No scientific notation. The value...
please show work. i need to know how to do this for a test A flask...
please show work. i need to know how to do this for a
test
A flask is charged with 0.124 mol of A and allowed to react to form B according to the reaction A(g) →B(g). The following data are obtained for [A] as the reaction proceeds: Time (s) 0.00 10.0- 20.0 30.0 40.0 Moles of A 0.124 0.110 0.088 0.073 0.054 The average rate of disappearance of A between 10 s and 20 s is mol/s. ect Answer 2.2...
-/0.1 points 33 0/4 Submissions Used (a) Calculate the percent ionization of 0.00720 M carbonic acid...
-/0.1 points 33 0/4 Submissions Used (a) Calculate the percent ionization of 0.00720 M carbonic acid (Ka = 4.3e-07). % ionization = % (b) Calculate the percent ionization of 0.00720 M carbonic acid in a solution containing 0.0470 M sodium hydrogen carbonate. % % ionization = Submit Answer + -/0.1 points 34. 0/4 Submissions Used A buffer solution contains 0.76 mol of propionic acid (HC3H502) and 0.30 mol of sodium propionate (NaC3H502) in 7.30 L The Ka of propionic acid...
26. + -/0.1 points 0/4 Submissions Used A buffer solution contains 0.45 mol of benzoic acid...
26. + -/0.1 points 0/4 Submissions Used A buffer solution contains 0.45 mol of benzoic acid (HC7H502) and 0.33 mol of sodium benzoate (NaCzH502) in 3.70 L. The Ka of benzoic acid (HC7H502) is Ka = 6.30-05. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.31 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the...
+-/0.1 points 40. 0/4 Submissions Used (a) If the molar solubility of Ca3(PO4)2 at 25 °C...
+-/0.1 points 40. 0/4 Submissions Used (a) If the molar solubility of Ca3(PO4)2 at 25 °C is 4.53e-08 mol/L, what is the Ksp at this temperature? Ksp (b) It is found that 8.70e-09 g of Ga(OH)3 dissolves per 100 mL of aqueous solution at 25 °C. Calculate the solubility-product constant for Ga(OH)3 Ksp (c) The Ksp of Cd3(PO4)2 at 25 °C is 2.53e-33. What is the molar solubility of Cd3(PO4)2? solubility mol/L
26. -/0.1 points 0/4 Submissions Used My Note A buffer solution contains 0.71 mol of hydrogen...
26. -/0.1 points 0/4 Submissions Used My Note A buffer solution contains 0.71 mol of hydrogen peroxide (HOOH) and 0.41 mol of sodium hydrogen peroxide (NaOH) in 7.60 L. The Ka of hydrogen peroxide (HOOH) is ka = 2.4e-12. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.36 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer...
19. + -10.11 points 0/4 Submissions Used My Notes A flask is charged with 0.110 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction. A(g) → B(9) The following data are collected. times (s) 0 40 80 120 160 moles of A 0.110 0.065 0.050 0.030 0.020 (a) Calculate the number of moles of B at each time in the table. Os mol 40 s mol 80 s mol 120 s mol...
A flask is charged with 0.120 mol of A and allowed to react to
form B according to the following hypothetical gas-phase
reaction.
A(g) B(g)
The following data are collected.
times (s)
0
40
80
120
160
moles of A
0.120
0.062
0.041
0.033
0.019
(a) Calculate the number of moles of B at each time in the
table.
0 s
_mol
40 s
_mol
80 s
_mol
_120 s
mol
160 s
_mol
(b) Calculate the average rate of...
Part 1.)
A flask is charged with 0.110 mol of A and allowed to react to
form B according to the following hypothetical gas-phase
reaction.
A(g) B(g)
The following data are collected.
times
(s)
0
40
80
120
160
moles of
A
0.110
0.070
0.043
0.032
0.024
(a) Calculate the number of moles of B at each time in the
table.
0 s
__ mol
40 s
__ mol
80 s
__ mol
120 s
__ mol
160 s
__...
A flask is charged with 0.124 mol of A and allowed
to react to form B according to the reaction A(g)
B(g). The following data are obtained
for A as the reaction proceeds:
The average rate of disappearance of A between 20.0 s and 40.0 s
is ________ mol/s
Select one:
A. 1.4 × 10–3
B. 7.1 × 10–3
C. 8.5 × 10–4
D. 1.7 × 10–3
E. 590
Time (S) 0.0 10.0 20.0 30.0 40.0 Moles of A 0.124...
A flask is charged with 2.78 mol of A and allowed to react to form B according to the reaction A(g) →B(g). The following data are obtained for [A] as the reaction proceeds: Time (s) mols of A 0.0 2.78 10.0 2.43 20.0 2.18 30.0 2.02 40.0 1.89 50.0 1.70 60.0 1.58 The average rate of disappearance of A for the first 30s is _ mol/s. *Please report 2 significant figures. Numbers only, no unit. No scientific notation. The value...
please show work. i need to know how to do this for a
test
A flask is charged with 0.124 mol of A and allowed to react to form B according to the reaction A(g) →B(g). The following data are obtained for [A] as the reaction proceeds: Time (s) 0.00 10.0- 20.0 30.0 40.0 Moles of A 0.124 0.110 0.088 0.073 0.054 The average rate of disappearance of A between 10 s and 20 s is mol/s. ect Answer 2.2...
-/0.1 points 33 0/4 Submissions Used (a) Calculate the percent ionization of 0.00720 M carbonic acid (Ka = 4.3e-07). % ionization = % (b) Calculate the percent ionization of 0.00720 M carbonic acid in a solution containing 0.0470 M sodium hydrogen carbonate. % % ionization = Submit Answer + -/0.1 points 34. 0/4 Submissions Used A buffer solution contains 0.76 mol of propionic acid (HC3H502) and 0.30 mol of sodium propionate (NaC3H502) in 7.30 L The Ka of propionic acid...
26. + -/0.1 points 0/4 Submissions Used A buffer solution contains 0.45 mol of benzoic acid (HC7H502) and 0.33 mol of sodium benzoate (NaCzH502) in 3.70 L. The Ka of benzoic acid (HC7H502) is Ka = 6.30-05. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.31 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the...
+-/0.1 points 40. 0/4 Submissions Used (a) If the molar solubility of Ca3(PO4)2 at 25 °C is 4.53e-08 mol/L, what is the Ksp at this temperature? Ksp (b) It is found that 8.70e-09 g of Ga(OH)3 dissolves per 100 mL of aqueous solution at 25 °C. Calculate the solubility-product constant for Ga(OH)3 Ksp (c) The Ksp of Cd3(PO4)2 at 25 °C is 2.53e-33. What is the molar solubility of Cd3(PO4)2? solubility mol/L
26. -/0.1 points 0/4 Submissions Used My Note A buffer solution contains 0.71 mol of hydrogen peroxide (HOOH) and 0.41 mol of sodium hydrogen peroxide (NaOH) in 7.60 L. The Ka of hydrogen peroxide (HOOH) is ka = 2.4e-12. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.36 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer...
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