The reaction for the thermal decomposition of gaseous formic acid HCOOH(g) -------> CO2(g) +H2(g) obeys the...
The reaction for the thermal decomposition of gaseous formic acid
- HCOOH(g) -------> CO2(g) +H2(g)
obeys the first-order rate law
- rate = - k[HCOOH]
Measurements at 1049 K reveal that in 5.79 s the concentration of HCOOH decreases to 26.4% of its original value. Calculate the rate constant k of the reaction at 1049 K.
_______ s-1
Homework Answers
Add Answer to:
The reaction for the thermal decomposition of gaseous formic
acid
HCOOH(g) ------->
CO2(g)
+H2(g)
obeys the...
1a. At 573 K, gaseous NO2 decomposes, forming NO(g) and O2. If a vessel containing NO2(g)...
1a. At 573 K, gaseous NO2 decomposes, forming NO(g) and O2. If a vessel containing NO2(g) has an initial concentration of 0.056 mol/L, how long will it take for 75% of the NO2(g) to decompose? The decomposition of NO2(g) is second-order in the reactant, and the rate constant for this reaction, at 573 K, is 1.1 L/mol · s. = ___ s 1b. The decomposition of ammonia on a metal surface to form N2 and H2 is a zero-order reaction....
5. A buffer solution contains 10.0 mmol of formic acid (HCOOH) and 15.0 mmol of formate...
5. A buffer solution contains 10.0 mmol of formic acid (HCOOH) and 15.0 mmol of formate (HC00°). If the solution pH is 3.95, then what is the Ka of formic acid? (a) 7.5 x 10-5 (b) 1.1 x 104 (c) 4.1 x 10-2 (d) 1.7 x 104 6. At 298 K, the equilibrium constant for the below reaction is 4.17 x 10'. What is the concentration of Cl" at equilibrium? Pb2+ (aq) + 2 C1- (aq) = PbCl, (s) (a)...
3. Formic acid, HCOOH, is a weak acid with a pK, of 3.74. Draw up a...
3. Formic acid, HCOOH, is a weak acid with a pK, of 3.74. Draw up a reaction table for the reaction of 0.300 M formic acid with water, and calculate the pH of this solution. 4. Consider the following gas-phase equilibrium reaction: N(g) O,(g)2NOg K, 4.10x 10 at 2000°C If 1.0 mol of NO is introduced into a 1.0 L container at 2000 C, what is the concentration of NO when equilibrium is reached? 5. Consider the equilibrium Predict and...
The activation energy for the isomerization ol cyclopropane to propene is 274 kJ/mol. By what factor...
The activation energy for the isomerization ol cyclopropane to
propene is 274 kJ/mol. By what factor does the rate of this
reaction increase as the temperature rises from 232 to 281 oC? (The
factor is the ratio of the rates.)
ohp?attempt-433089 When formic acid is heated, it decomposes to hydrogen and carbon dioxide in a first-order decay: HCOOH(g) →CO2(g) + H2 (g) The rate of reaction is monitored by measuring the total pressure in the reaction container Time (s). .P...
In a study of the gas phase decomposition of hydrogen iodide at 700 K HI(g)½ H2(g)...
In a study of the gas phase decomposition of hydrogen iodide at 700 K HI(g)½ H2(g) + ½ I2(g) the concentration of HI was followed as a function of time. It was found that a graph of 1/[HI] versus time in seconds gave a straight line with a slope of 1.68×10-3 M-1 s-1 and a y-intercept of 2.66 M-1. Based on this plot, the reaction is ______ (zero/first/second) order in HI and the rate constant for the reaction is _____...
The gas phase decomposition of hydrogen iodide at 700 K HI(g)½ H2(g) + ½ I2(g) is...
The gas phase decomposition of hydrogen iodide at 700 K
HI(g)½
H2(g) + ½ I2(g)
is second order in HI with a
rate constant of 1.20×10-3
M-1 s-1.
If the initial concentration of HI is
2.22 M, the concentration of HI
will be _____________________M after
2.21×103 seconds have
passed.
2 H2O(I) ⇌ 2 H2(g) + O2(g) Le Châtelier's principle predicts that decreasing the volume of the reaction vessel will
2 H2O(I) ⇌ 2 H2(g) + O2(g) Le Châtelier's principle predicts that decreasing the volume of the reaction vessel will _______ decreasing the pressure of the reaction vessel a(n) increase in Keq an increase in the concentration of O2 no changes in equilibrium partial pressures a decrease in the concentration of H2 QUESTION 18The slope and intercept of an Arrhenius plot made for the first-order decomposition reaction are -5382.7K and 34.869 at 303K, what is the value of the activation energy (l/mol) at this temperature? QUESTION 19 The rate...
8. Sodium bicarbonate, NaHCO3, undergoes thermal decomposition according to the reaction: 2 NaHCO3 (s) + Na2CO3...
8. Sodium bicarbonate, NaHCO3, undergoes thermal decomposition according to the reaction: 2 NaHCO3 (s) + Na2CO3 (s) + CO2 (g) + H20 (g). How does the equilibrium position shift as a result of each of the following disturbances? a. 0.20 atm argon is added. b. NaHCO3 (s) is added. c. Mg(CIO)2 is added as a drying agent to remove H2O vapor. d. Dry ice (Solid CO2) is added. e. The volume of the container decreases. f. The temperature of the...
The decomposition of hydrogen iodide on a gold surface at 150 °C HI(g)½ H2(g) + ½...
The decomposition of hydrogen iodide on a gold surface at 150 °C HI(g)½ H2(g) + ½ I2(g) is zero order in HI. In one experiment, when the initial concentration of HI was 0.433 M, the concentration of HI dropped to 0.100 M after 1.74×10^3 seconds had passed. Based on these data, the rate constant for the reaction is M s-1.
3. The thermal decomposition of A, 2A + products is a second-order reaction. Given that the...
3. The thermal decomposition of A, 2A + products is a second-order reaction. Given that the initial concentration of A is = 2.45 x 10-3 M and the intial rate of reaction is 2.05x10-6 M s-1, calculate the rate constant. Also calculate the rate of reaction after 90% of A has reacted.
5. A buffer solution contains 10.0 mmol of formic acid (HCOOH) and 15.0 mmol of formate (HC00°). If the solution pH is 3.95, then what is the Ka of formic acid? (a) 7.5 x 10-5 (b) 1.1 x 104 (c) 4.1 x 10-2 (d) 1.7 x 104 6. At 298 K, the equilibrium constant for the below reaction is 4.17 x 10'. What is the concentration of Cl" at equilibrium? Pb2+ (aq) + 2 C1- (aq) = PbCl, (s) (a)...
3. Formic acid, HCOOH, is a weak acid with a pK, of 3.74. Draw up a reaction table for the reaction of 0.300 M formic acid with water, and calculate the pH of this solution. 4. Consider the following gas-phase equilibrium reaction: N(g) O,(g)2NOg K, 4.10x 10 at 2000°C If 1.0 mol of NO is introduced into a 1.0 L container at 2000 C, what is the concentration of NO when equilibrium is reached? 5. Consider the equilibrium Predict and...
The activation energy for the isomerization ol cyclopropane to
propene is 274 kJ/mol. By what factor does the rate of this
reaction increase as the temperature rises from 232 to 281 oC? (The
factor is the ratio of the rates.)
ohp?attempt-433089 When formic acid is heated, it decomposes to hydrogen and carbon dioxide in a first-order decay: HCOOH(g) →CO2(g) + H2 (g) The rate of reaction is monitored by measuring the total pressure in the reaction container Time (s). .P...
The gas phase decomposition of hydrogen iodide at 700 K
HI(g)½
H2(g) + ½ I2(g)
is second order in HI with a
rate constant of 1.20×10-3
M-1 s-1.
If the initial concentration of HI is
2.22 M, the concentration of HI
will be _____________________M after
2.21×103 seconds have
passed.
8. Sodium bicarbonate, NaHCO3, undergoes thermal decomposition according to the reaction: 2 NaHCO3 (s) + Na2CO3 (s) + CO2 (g) + H20 (g). How does the equilibrium position shift as a result of each of the following disturbances? a. 0.20 atm argon is added. b. NaHCO3 (s) is added. c. Mg(CIO)2 is added as a drying agent to remove H2O vapor. d. Dry ice (Solid CO2) is added. e. The volume of the container decreases. f. The temperature of the...
3. The thermal decomposition of A, 2A + products is a second-order reaction. Given that the initial concentration of A is = 2.45 x 10-3 M and the intial rate of reaction is 2.05x10-6 M s-1, calculate the rate constant. Also calculate the rate of reaction after 90% of A has reacted.
Most questions answered within 3 hours.
-
How are thermohaline currents tied to the atmosphere and how can
these currents affect climate variations...
asked 19 seconds ago -
One 2.5 MW turbine had a monthly production of 700 MWh, while
the 250 MW wind...
asked 9 minutes ago -
C++ question.
Introduce a pass by pointer function that reverses a whole
vector.
asked 5 minutes ago -
The number of head trauma injuries at a small hospital has a
Poisson distribution with a...
asked 9 minutes ago -
1. An airplane leaves airport A and travels in a straight line
in a direction 30...
asked 24 minutes ago -
Consider a chess tournament in which you play one game with each
of 3 opponents, but...
asked 25 minutes ago -
There's sometimes a stereotype that in marriage the husband is
often older than the wife. The...
asked 33 minutes ago -
convert the following
138,000 J/mol to m^2/s
1.05 x 10^-5 m^2/s to kJ/ mol
asked 40 minutes ago -
Calculate the weight of H2SO4 in 25 mL of concentrated acid that
has a specific gravity...
asked 36 minutes ago -
An object is located 7.10 cm in front of a mirror. The virtual
image is located...
asked 3 hours ago -
Write a program in python that lets the user play the game Rock,
Paper, Scissors against...
asked 4 hours ago -
A car starts from rest on a curve with a radius of 150 m and
tangential...
asked 7 hours ago