Can someone help me in solving the first question please. And second question I just included...
Can someone help me in solving the first question please. And second question I just included just to see if my answer is correct. My dyslexia plays with my mind sometimes =/
The pKb of ammonia is 4.74. What is the pKa?
| A |
9.26 |
|
| B |
4.74 |
|
| C |
0.676 |
|
| D |
14 |
|
| E |
0.211 |
If I dissolve KOH in solution to a concentration of 3.4 x 10-4, what is [OH-] in solution?"
| A. |
3.4 x 10-4 |
|
| B |
2.94 x 10-11 |
|
| C |
Can t be determined without the pKa |
|
| D |
2.94 x 10-10 |
|
| E |
3.47 |
Homework Answers
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Can someone help me in solving the first question please. And
second question I just included...
HELP!! I keep getting these two questions wrong. THANK YOU to whoever can help me with...
HELP!! I keep getting these two questions wrong. THANK YOU to whoever can help me with this. If I dissolve KOH in solution to a concentration of 3.4 x 10-4, what is [OH-] in solution?" 3.4 x 10-4 2.94 x 10-11 Can t be determined without the pKa 2.94 x 10-10 3.47 If [H+] in aqueous solution is 6.50 x 10-6, what is [OH-]?" 1.67 x 10-4 1.67 x 10-9 4.22 1.67 x 10-10 6.50 x 10-6
Can someone please help EXPLAIN this to me? I don't just want answers, I need EXPLANATIONS!...
Can someone please help EXPLAIN this to me? I don't just want
answers, I need EXPLANATIONS! I will mark it thumbs down if it is
not explained to me and just given the answer. Thanks! Even if you
could answer a few of them. Please, you'd be saving my grade. Just
explain it.
Equivalnets of hydroxide 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pH a) What is the one letter code for...
I need help with solving this step by step, please help me solve these step by...
I need help with solving this
step by step, please help me solve these step by step and with
explanation, please do It on paper and not typed up because it is
really confusing when typed up
format and your Solve the following problems. Your solutions should be in the final answers should have the correct units and number of significant figures. 58. proper What mass of Mg(OH), will dissolve in 1.0 L of 0.050 mol/L solution of MgSO4a? (9...
Can someone please help me in solving question in attached image. Thanks Suppose that an array...
Can someone please help me in solving question in
attached image. Thanks
Suppose that an array A of n 1 numbers is given. We want to create a n x n matrix B such that, for 0 i<j<n, Bli.j] AIk] = Ali]Ali+1] for n ij 0, B[i.j] 0 +Aljl k-i I need to write a program where it accepts A as array and return B as matrix defined above, for O(n 2) algorithm
I need help with the solving this problem! Can someone please give a detailed explanation on...
I need help with the solving this problem! Can someone please
give a detailed explanation on how to solve it?
8:08 Search MasteringChemistry <Chapter 16 Problem 16.81 < 9 of 12 > Review Constants Periodic Table Part A A solution of sodium acetate (NaCH3COO) has a pH of 9.48. The acid-dissociation constant for acetic acid is 1.8 x 10 What is the molarity of the solution? Express your answer to two significant figures and include the appropriate units. Molarity =...
please help me solve these two questions. I have done the first and just trying to...
please help me solve these two questions. I have done the first
and just trying to check my answer and im kinda lost on the
second
- Joker2+1) (b) Calculate the derivative of pin(2) F(x) = e' Vidt, and determine whether F(x) is increasing or decreasing at the point x = 1. 2. Find the antiderivative F(x) of f(x) sin(x) + V1 + 2 tan(x) cos2(x) such that F(0) = 0.
Can someone please help me understand question 2? I understand the first one, but for some...
Can someone please help me understand question 2? I understand
the first one, but for some reason I keep getting the second one
wrong
In the class lecture notes, the result of the first-order perturbation calculation for the energy of lithium was given as E" - 2J12+ILL-K2. This energy is added to the EC value obtained by treating each electron as if it were in an independent hydrogen-like orbital in order to estimate the total energy of the lithium atom....
Hi. Can someone please help me with this SQL question? I asked this before, but someone...
Hi. Can someone please help me with this SQL question? I asked this before, but someone just cut and pasted a completely incorrect answer that they found online. Please be genuine in your response. Write an SQL statement to show the sum of HoursWorked for each type of OWNER but exclude services of employees who have ExperienceLevel of Junior. OWNER ( OwnerID, OwnerName, OwnerEmail, OwnerType ) PROPERTY_TYPE ( PropertyID, PropertyName, PropertyType, Street, City, State, Zip,OwnerID ) PROPERTY_SERVICE (PropertyServiceID, PropertyID, ServiceID,...
i need help with this lab please. can i get someone to answer the entire thing....
i need help with this lab please. can i get someone to answer
the entire thing. thank you
Instructor Equilibria of Coordination Compounds OBSERVATIONS AND DATA 1. The formation of complex ions with ammonia The net ionic equation for the reaction of excess Cuso, with NH, is 24 Cu2+ + 4NH3 [cu (NH3)4] The predicted effect on the reaction above of adding excess NH, (based on Le Châtelier's principle) is The reaction will shift to the night and product formation...
i am stuck can someone help me answer these please 0.2.9 Question Help 0 Find the...
i am stuck can someone help me answer these please
0.2.9 Question Help 0 Find the indicated 10 score. The graph to the right depicts 10 scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. Click to view page 2 of the table. 0.99 0 The indicated IQ score, x, is (Round to one decimal place as needed.) Question Help y...
Can someone please help EXPLAIN this to me? I don't just want
answers, I need EXPLANATIONS! I will mark it thumbs down if it is
not explained to me and just given the answer. Thanks! Even if you
could answer a few of them. Please, you'd be saving my grade. Just
explain it.
Equivalnets of hydroxide 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pH a) What is the one letter code for...
I need help with solving this
step by step, please help me solve these step by step and with
explanation, please do It on paper and not typed up because it is
really confusing when typed up
format and your Solve the following problems. Your solutions should be in the final answers should have the correct units and number of significant figures. 58. proper What mass of Mg(OH), will dissolve in 1.0 L of 0.050 mol/L solution of MgSO4a? (9...
Can someone please help me in solving question in
attached image. Thanks
Suppose that an array A of n 1 numbers is given. We want to create a n x n matrix B such that, for 0 i<j<n, Bli.j] AIk] = Ali]Ali+1] for n ij 0, B[i.j] 0 +Aljl k-i I need to write a program where it accepts A as array and return B as matrix defined above, for O(n 2) algorithm
I need help with the solving this problem! Can someone please
give a detailed explanation on how to solve it?
8:08 Search MasteringChemistry <Chapter 16 Problem 16.81 < 9 of 12 > Review Constants Periodic Table Part A A solution of sodium acetate (NaCH3COO) has a pH of 9.48. The acid-dissociation constant for acetic acid is 1.8 x 10 What is the molarity of the solution? Express your answer to two significant figures and include the appropriate units. Molarity =...
please help me solve these two questions. I have done the first
and just trying to check my answer and im kinda lost on the
second
- Joker2+1) (b) Calculate the derivative of pin(2) F(x) = e' Vidt, and determine whether F(x) is increasing or decreasing at the point x = 1. 2. Find the antiderivative F(x) of f(x) sin(x) + V1 + 2 tan(x) cos2(x) such that F(0) = 0.
Can someone please help me understand question 2? I understand
the first one, but for some reason I keep getting the second one
wrong
In the class lecture notes, the result of the first-order perturbation calculation for the energy of lithium was given as E" - 2J12+ILL-K2. This energy is added to the EC value obtained by treating each electron as if it were in an independent hydrogen-like orbital in order to estimate the total energy of the lithium atom....
i need help with this lab please. can i get someone to answer
the entire thing. thank you
Instructor Equilibria of Coordination Compounds OBSERVATIONS AND DATA 1. The formation of complex ions with ammonia The net ionic equation for the reaction of excess Cuso, with NH, is 24 Cu2+ + 4NH3 [cu (NH3)4] The predicted effect on the reaction above of adding excess NH, (based on Le Châtelier's principle) is The reaction will shift to the night and product formation...
i am stuck can someone help me answer these please
0.2.9 Question Help 0 Find the indicated 10 score. The graph to the right depicts 10 scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. Click to view page 2 of the table. 0.99 0 The indicated IQ score, x, is (Round to one decimal place as needed.) Question Help y...
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