03/07/22

equilibrium summary
Determine and explain the direction of the shift in equilibrium when external changes are applied to an exothermic reaction4NH3 (g) + 5 O2 (g) => 4 NO (g) + 6 H2O (g)a. an increase in... more
Follows • 2
Expert Answers •1

03/07/22

equalibium summary
Write an expression for Kc for the following reaction4 NH3 (g) + 5 O2 (g) => 4 NO (g) + 6 H2O (g)
Follows • 2
Expert Answers •1

03/07/22

If a system has 475 kcal of work done to it, and releases 5.00×102 kJ of heat into its surroundings, what is the change in internal energy (Δ𝐸 or Δ𝑈) of the system?
Follows • 2
Expert Answers •1

03/07/22

A mixture of He , N2 , and Ar has a pressure of 28.9 bar . The partial pressure of He is 187 kPa and the partial pressure of Ar is 449 kPa . Calculate the partial pressure of N2 in bar.
Follows • 2
Expert Answers •1

03/07/22

How much MnO2(s) should be added to excess HCl(aq) to obtain 135 mL Cl2(g) at 25 °C and 102 kPa ?
Follows • 2
Expert Answers •1

03/07/22

Consider the unbalanced redox equation, VO43-(aq) + SO2(g) + H+(aq) VO2+(aq) + SO42-(aq) + H2O(l) The reducing agent is
Follows • 2
Expert Answers •1

03/07/22

How many ions are produced in solution by dissociation of one formula unit of Co(NO3)2·6H2O?
Answer key says it is 3. How do you get to that answer?
Follows • 2
Expert Answers •1

03/06/22

Select the transition that results in emitted light with the shortest wavelength.
Select the transition that results in emitted light with the shortest wavelength. 𝑛=6 to 𝑛=5 𝑛=7 to 𝑛=6 𝑛=4 to 𝑛=3 𝑛=5 to 𝑛=4
Follows • 2
Expert Answers •1

03/06/22

Spectrophotometric Determination of pH 2
Salts of hypoiodite ion behave as a weak base, undergoing hydrolysis in water according to the equation:IO- + H2O  HIO + OH-Kb for hypoiodite ion = 0.00044.Calculate the [H+] and pH of a 0.713 M... more
Follows • 2
Expert Answers •1

03/06/22

Spectrophotometric Determination of pH
Formic acid (HCOOH) is a weak acid that partially dissociates as follows, with a Ka = 0.0001778:HCOOH + H2O ↔ H3O+ + HCOO-Calculate the [H+] and pH of a 0.559 M solution of formic acidNow calculate... more
Follows • 2
Expert Answers •1

03/06/22

For the wave of light you generated in part B, calculate the amount of energy in 1.0 mole of photons with the same frequency (1.3 x10^10 Hz)
For the wave of light you generated in part B, calculate the amount of energy in 1.0 mole of photons with the same frequency (1.3 x10^10 Hz) and the wavelength (0.026 m). Recall that the avogadro... more
Follows • 2
Expert Answers •1

03/06/22

complete combustion of methane
The complete combustion of methane can be seen in the equation:CH4+ 2O2→ CO2+ 2H2OIf 50 g of methane are reacted completely, which statement describes the reaction?  a The total mass of reactants... more
Follows • 2
Expert Answers •1

03/06/22

Are these ionic, molecular, or mixture?
0.10 M acetic acid0.0010 M hydrochloric acid0.010 M hydrochloric acid0.10 M hydrochloric acid1.0 M hydrochloric acid
Follows • 2
Expert Answers •1

03/05/22

The density of an ideal gas at STP is found to be 1.76 g/L . What is its molar mass?
Follows • 2
Expert Answers •1

03/05/22

Consider the given reaction. A(aq)+B(s)↽−−⇀C(aq)𝐾=9.40 Suppose 15.5 mol A reacts with excess B in 7.80 L of solution. Calculate the concentration of C at equilibrium. [C]= M
Follows • 2
Expert Answers •1

03/05/22

Consider the reaction. A(aq)↽−−⇀3B(aq)𝐾c=8.52×10−6at 500 K If a 1.50 M sample of A is heated to 500 K , what is the concentration of B at equilibrium? [B]= M
Follows • 2
Expert Answers •1

03/05/22

What is the equilibrium concentration of C if the reaction begins with 0.200 M A and 0.600 M B?
For the reaction below, Kc = 1.10 × 10⁻⁴. \What is the equilibrium concentration of C if the reaction begins with 0.200 M A and 0.600 M B? 2 A (aq) + B (aq) ⇌ C (aq)
Follows • 2
Expert Answers •1

03/05/22

If Kp = 0.450 for the reaction below, what is the equilibrium partial pressure of HF?
An empty steel container is filled with 5.00 atm of H₂ and 5.00 atm of F₂. The system is allowed to reach equilibrium. If Kp = 0.450 for the reaction below, what is the equilibrium partial pressure... more
Follows • 3
Expert Answers •1

03/05/22

What is the value of the equilibrium constant?
For the reaction: 2 A (g) + B (s) ⇌ 2 C (s) + D (g) At 298 K in a 10.0 L vessel, the equilibrium values are as follows: 0.721 atm of A, 4.18 mol of B, 6.25 mol of C, and 2.93 atm of D.
Follows • 2
Expert Answers •1

03/05/22

If the equilibrium constant of a given reaction is 6.42, what is the equilibrium constant of its reverse reaction?
I know what this question is asking but apparently, I do not know how to solve it I have gotten it wrong 3 times.
Follows • 2
Expert Answers •1

03/05/22

What is Kp for the reaction 4 B (g) ⇌ 2 A (g)?
The Kp for the reaction A (g) ⇌ 2 B (g) is 0.0640. What is Kp for the reaction 4 B (g) ⇌ 2 A (g)?
Follows • 2
Expert Answers •1

03/05/22

What is the Q of the reaction?

For the reaction below, the partial pressure of NO₂ is 0.26 bar and the partial pressure of N₂O₄ is 1.0 bar. What is the Q of the reaction? (R = 0.08314 L･bar/mol･K; Kp = 0.25) 2 NO₂ (g) ⇌ N₂O₄ (g)
Follows • 2
Expert Answers •1

03/05/22

If Kc = 0.0023 for the reaction below at 298.0 K, then what is the value of Kp?
If Kc = 0.0023 for the reaction below at 298.0 K, then what is the value of Kp? (R = 0.0821 L･atm/mol･K.)3 A (g) + B (g) ⇌ C (g) + D (g)
Follows • 2
Expert Answers •1

03/04/22

A gaseous compound has a density of 1.17 g/L at 25.5 °C and 1.18 atm. What is the molar mass of the compound?
Follows • 2
Expert Answers •1

03/04/22

Chem 101 Homework 9: Rate Laws Question 7
The initial concentration of a reactant in a first order reaction is 0.860 M. What will be its concentration after 1 half-lives have passed?Answer=______M
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.