The answer is 1.25 X 10^4, but that isn't what I am getting when I plug in the given numbers.
Homework Answers
![A -> 28 1.52 810-4 4.5 tve usskolas din CAJA -kt b) CAI, de [0.010] [0.0677 - - (152x159 A ta 1.9021 1.528054 - 1251 3.86 i](http://img.homeworklib.com/questions/21647cc0-ca80-11ea-bd63-f77c037ebf70.png?x-oss-process=image/resize,w_560)
Add Answer to:
The answer is 1.25 X 10^4, but that isn't what I am
getting when I plug...
5. A chemical reaction of the general type A → 2B is first-order, with a rate...
5. A chemical reaction of the general type A → 2B is first-order, with a rate constant of 1.52 x 10-45-1. a. Calculate the half-life of A. b. Assuming the initial concentration of A is 0.067 mol L-1, calculate the time needed for the concentration to fall to 0.010 mol L-
A chemical reaction of the general type: A → 2B is first-order, with a rate constant...
A chemical reaction of the general type: A → 2B is first-order, with a rate constant of 1.52 × 10-4 s-1. a) Calculate the half-life of A. b) Assuming the initial concentration of A is 0.067 mol L-1, calculate the time needed for the concentration to fall to 0.010 mol L-1.
23) A chemical reaction of the general type: A → 2B is first-order, with a rate...
23) A chemical reaction of the general type: A → 2B is first-order, with a rate constant of 1.52 × 10-4 s-1. a. Calculate the half-life of A. b. Assuming the initial concentration of A is 0.067 mol L-1, calculate the time needed for the concentration to fall to 0.010 mol L-1.
1.) Calculate to four significant figures: a) the mass change in kg b) the energy change...
1.) Calculate to four significant figures: a) the mass change in kg b) the energy change in kJ/mol, when a neutron decays to produce a proton and an electron. The neutron, proton & electron masses are 1.67493 × 10-27 kg, 1.67262 × 10-27 kg and 9.10939 × 10-31 kg, respectively. 2.) A chemical reaction of the general type: A → 2B is first-order, with a rate constant of 1.52 × 10-4 s-1. a) Calculate the half-life of A. b) Assuming...
Please show work I am not getting the correct answers 1. Hydrogen peroxide, H2O2, decomposes spontaneously...
Please show work I am not getting the correct answers 1. Hydrogen peroxide, H2O2, decomposes spontaneously through the following reaction. 2H2O2(aq) 2H2O(g) + O2(g) The kinetics are second order, and the half‐life is 17.3 min when a 1.75 M solution of H2O2 is made. What is the concentration of the solution after 24.8 min? 2. The decomposition of N2O5 occurs by the following reaction: 2N2O5(g) 4NO2(g) + O2(g) The rate constant is experimentally determined to be 3.4 x 10‐4 s‐1....
This is all the information I was given to answer this question. To determine the formation...
This is all the information I was given to answer this
question.
To determine the formation constant, Kf, for [Zn(CN)4)2-(aq), 4.00 mL of 1.50 mol/L KCN(aq) and 1.00 mL of 0.0750 mol/L Zn(NO3)2(aq) were combined. The mixture was stirred for 10 minutes to ensure that equilibrium had been reached. A voltaic cell was constructed to determine the concentration of uncomplexed Zn2+ (aq) ions left in solution at the end of the complexation reaction. The [Zn(CN)4]- (aq), Zn2+ (aq), CN (aq)...
I am having trouble getting the right answer to these few questions and I am very much in need of...
I
am having trouble getting the right answer to these few questions
and I am very much in need of someone to kindly answer these
questions for me correctly please. Thanks.
Question 3 0/15 pts Cakculate the change in energy for the transition of the electron from the n 2 level to then 1 level in kJ/mol, using the values of the energy levels calculated above 984.8 Question 4 0/15 pts Find the wavelength in nm of the line emitted...
I think I am reading into the question to much. Would I just do x=10 and plug it into the least s...
I think I am reading into the question to much. Would I just do
x=10 and plug it into the least square equation?
Bivariate Fit of ls2 By pyr2 1.0 0.9 0.8 Is2 0.7 0.6 0.5 0.4 30 40 50 10 0 20 60 70 pyr2 Linear Fit Linear Fit Is2 - 0.8044313 - 0.0016504 pyr2 Summary of Fit RSquare RSquare Adj Root Mean Square Error Mean of Response Observations (or Sum Wgts) 0.031661 0.006831 0.137003 0.759024 Lack Of Fit...
can you answer these for me! I am struggling. EEN 211 Home work #2 Due Date:...
can
you answer these for me! I am struggling.
EEN 211 Home work #2 Due Date: 03/23/2020 1. The equilibrium fraction of lattice sites that are vacant in silver (Ag) at 700C is 2 x 10-6 Calculate the number of vacancies (per meter cubed) at 700 C. Assume a density of 10.35 g/cm for Ag 2. What is the composition, in atom percent of an alloy that consists of 92.5 wt% Ag and 7.5 wrCu? 3. Calculate the number of...
i need help woth this!! Part A K. From the value Ke = 1.2 x 10°...
i need help woth this!!
Part A K. From the value Ke = 1.2 x 10° for Ni(NH3).2+, calculate the concentration of NH3 required to just dissolve 0.024 mol of NiC 04 (K,p = 4 x 10-1) in 1.00 L of solution. (Hint: You can neglect the hydrolysis of C,0,2- because the solution will be quite basic.) Express your answer using two significant figures. Iyo AEO ? (NH3) = 0.37 M Submit Previous Answers Request Answer
5. A chemical reaction of the general type A → 2B is first-order, with a rate constant of 1.52 x 10-45-1. a. Calculate the half-life of A. b. Assuming the initial concentration of A is 0.067 mol L-1, calculate the time needed for the concentration to fall to 0.010 mol L-
This is all the information I was given to answer this
question.
To determine the formation constant, Kf, for [Zn(CN)4)2-(aq), 4.00 mL of 1.50 mol/L KCN(aq) and 1.00 mL of 0.0750 mol/L Zn(NO3)2(aq) were combined. The mixture was stirred for 10 minutes to ensure that equilibrium had been reached. A voltaic cell was constructed to determine the concentration of uncomplexed Zn2+ (aq) ions left in solution at the end of the complexation reaction. The [Zn(CN)4]- (aq), Zn2+ (aq), CN (aq)...
I
am having trouble getting the right answer to these few questions
and I am very much in need of someone to kindly answer these
questions for me correctly please. Thanks.
Question 3 0/15 pts Cakculate the change in energy for the transition of the electron from the n 2 level to then 1 level in kJ/mol, using the values of the energy levels calculated above 984.8 Question 4 0/15 pts Find the wavelength in nm of the line emitted...
I think I am reading into the question to much. Would I just do
x=10 and plug it into the least square equation?
Bivariate Fit of ls2 By pyr2 1.0 0.9 0.8 Is2 0.7 0.6 0.5 0.4 30 40 50 10 0 20 60 70 pyr2 Linear Fit Linear Fit Is2 - 0.8044313 - 0.0016504 pyr2 Summary of Fit RSquare RSquare Adj Root Mean Square Error Mean of Response Observations (or Sum Wgts) 0.031661 0.006831 0.137003 0.759024 Lack Of Fit...
can
you answer these for me! I am struggling.
EEN 211 Home work #2 Due Date: 03/23/2020 1. The equilibrium fraction of lattice sites that are vacant in silver (Ag) at 700C is 2 x 10-6 Calculate the number of vacancies (per meter cubed) at 700 C. Assume a density of 10.35 g/cm for Ag 2. What is the composition, in atom percent of an alloy that consists of 92.5 wt% Ag and 7.5 wrCu? 3. Calculate the number of...
i need help woth this!!
Part A K. From the value Ke = 1.2 x 10° for Ni(NH3).2+, calculate the concentration of NH3 required to just dissolve 0.024 mol of NiC 04 (K,p = 4 x 10-1) in 1.00 L of solution. (Hint: You can neglect the hydrolysis of C,0,2- because the solution will be quite basic.) Express your answer using two significant figures. Iyo AEO ? (NH3) = 0.37 M Submit Previous Answers Request Answer
Most questions answered within 3 hours.
-
Two small plastic spheres are given positive electrical charges.
When they are a distance of 15.4...
asked 1 minute from now -
An acidic solution containing gold ions is
electrolyzed, producing gaseous oxygen (from water) at the anode...
asked 14 minutes ago -
Assume that the population of Mexico is 128
million and that the population increases 1.01
percentannually....
asked 1 hour ago -
Can someone please help me add appropriate descriptive
comments to each line of code in the...
asked 1 hour ago -
Romeo wishes to throw a bouquet of flowers to Juliet, who is on
a second-story balcony,...
asked 2 hours ago -
Why is QE a controversial monetary policy tool.
A. It may lead to excessive inflation.B. By...
asked 2 hours ago -
Principles of Programming midterm study guide help!
1.)
______ Which of the following would reference the...
asked 2 hours ago -
A finite potential well has depth U0 = 2.78 eV . What is the
penetration distance...
asked 2 hours ago -
1. The bus bars of a power station are in two sections A and B
separated...
asked 2 hours ago -
Fiscal policy is the deliberate manipulation of taxes and
government spending to alter GDP, employment, inflation...
asked 3 hours ago -
evaluating an expression using only one digit and + and - as
operators ....3+5-1+7-5+8
-----------------------
stack...
asked 3 hours ago -
Two concentric current loops lie in the same plane. The smaller
loop has a radius of...
asked 4 hours ago