![Item 50 Part A What is the [A]/[HA] ratio necessary to make a buffer solution with a pH of 4.44? Ka=1.8 x 105 O 0.94:1 O 2.0:](http://img.homeworklib.com/questions/f301e440-ef0e-11ea-85db-79e9c9226d93.png?x-oss-process=image/resize,w_560)
can you please help me solve these four questions? I'm a little desperate to finish them.
Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
can you please help me solve these four questions? I'm
a little desperate to finish them....
can you please help me solve these four questions? I'm a little desperate to finish them....
can you please help me solve these four questions? I'm
a little desperate to finish them.
en 24 24 50 Constants Periodic Tate Part A Calculate the pe of a soron formed by muung 4500 ml. of 30 M HCO with 225.0 mL of 0 20 M NACIO. The K, for HCKO is 29 x 10" O 599 0 0.01 07.06 6.46 754 Hide Timer 01/15:01 Item 25 25 of 60 ( Suppose an aqueous solution contains both 0.100 MHA...
can you please help me solve these four questions? I'm a little desperate to finish them....
can you please help me solve these four questions? I'm
a little desperate to finish them.
Part A Calculate the osmotic pressure (in atm) of a solution formed by dissolving 25.0 mg of aspirin CoH904 (molar mass = 180.2 g/mol) in 0.250 L of water at 25.0°C. [R = 0.08206 L-atm/mol K] o 1.14 x 10-3 atm O 13.6 atm 0 2.45 atm 03.58 atm 0 0.0136 atm Item 17 Given the value of the equilibrium constant for the first...
can you please help me solve these four questions? I'm a little desperate to finish them....
can you please help me solve these four questions? I'm
a little desperate to finish them.
Given the following proposed mechanism. predict the rate law for the onerall reaction. 2A+B-2 C (overall reaction) Mechanism A+B-C+D A+DC slow fast O Rate = K[ AD] Rate = =k[C][D] O Rate = k[c2 w O Rate = k[A]21812 Rate = k[A][B] Part A Which of the following solutions would have the highest pH? Assume that they are all 0.10 Min acid at 25°C....
can you please help.me answer these three questions please? I am really desperate and in need...
can you please help.me answer these three questions
please? I am really desperate and in need of help.
Question 1 Consider the following reaction: Al(s) + Fe2+ (aq) —— A13+ (aq) + Fe (s) When this redox equation is balanced, the coefficient in front of Fe (s) is 0 03 04 Question 2 Consider the following redox reaction in acidic solution: BrO3 + N2H4 Br + N2 When this redox equation is balanced, the coefficient in front of N2 is...
Can you please try to answer these four questions for me? 3 pts Question 16 A...
Can you please try to answer these four questions for
me?
3 pts Question 16 A calibration standard has a concentration of 0.250 M. It is found to have an absorbance of 1.256. An unknown solution has an absorbance of 0.875, what is it's molarity? Question 17 In the iron thiocynate reaction a student gets the following values: [Fe3+10:0.0024M [SCN): 0.0079 M [FeSCN2+leg: 0.00055 M Given these values calculate the Kc of this reaction. Consider the react that you did...
I need help with all three questions please and thank you! *four 4. Consider the reaction:...
I need help with all three questions please and thank
you!
*four
4. Consider the reaction: 2 SOX) + g) = 2 50 (8) A 2.0 L flask was filled with 0.0400 moles o. 00200 moles of O. At equilibrium 0.0296 moles of so, were found what is the equilibrium constant for this reaction? A) 2.556 x 10 + B) 3.664 x 10 C) 6.953 x 102 D) 9.964 x 102 E) 3.116 x 10 5. What is a conjugate...
please solve what you can and show your work. I'm not really good in chemistry??♀️ Home...
please solve what you can and show your work. I'm not really
good in chemistry??♀️
Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 1) Of the species below, only is not an electrolyte. A) HCI B) Rb2804 C) Ar D) KOH E) NaCI 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions...
Can you please solve and provide the answer please c. 10. Calculate the standard cell potential...
Can
you please solve and provide the answer please
c. 10. Calculate the standard cell potential El using the given given data for the electrochemical cell constructed using the following reaction: Mn (s) + Ca**(aq) → Mnº(aq) + Ca(s). Half-reaction Standard reduction potential Mn* (aq) +2 e Mn(s) -1.185 V ca" (aq) +2 e Cd(s) -0.403 v a. +1.588 V d. +1.967 V b. +0.782 v e. -0.782 v -1.588 v 11. What is the value of the equilibrium constant...
Please help with all 4!!!! I'm stuck! Part C Find the pH of a 0.130 M...
Please help with all 4!!!! I'm stuck!
Part C Find the pH of a 0.130 M HF solution. Express your answer to two decimal places. IVO AQ 0 2 ? pH = 2.01 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part D Find the percent dissociation of a 0.130 M HF solution. Express your answer using two significant figures. VALO 0 2 ? Part E Find the pH of a 5.00x10-2 M HF solution Express...
Hello! Can someone help me with these questions? Thank you! 1 Answer the following questions (a)...
Hello! Can someone help me with these questions? Thank
you!
1 Answer the following questions (a) The following substances are either Brønsted-Lowry acid or base Write the equation for the acid of base reacting with water. CO2?"(aq) + H2O(lig) - HNO3(aq) + H2O(lig) = CH3NH; (aq) + H2O(lig) = (b) Write a reaction for the conjugate base of H,PO, (aq) reacting with the conjugate acid of NH3(aq) (c) What is the pH of 0.00023 M HBr? (d) A precisely done...
can you please help me solve these four questions? I'm
a little desperate to finish them.
en 24 24 50 Constants Periodic Tate Part A Calculate the pe of a soron formed by muung 4500 ml. of 30 M HCO with 225.0 mL of 0 20 M NACIO. The K, for HCKO is 29 x 10" O 599 0 0.01 07.06 6.46 754 Hide Timer 01/15:01 Item 25 25 of 60 ( Suppose an aqueous solution contains both 0.100 MHA...
can you please help me solve these four questions? I'm
a little desperate to finish them.
Part A Calculate the osmotic pressure (in atm) of a solution formed by dissolving 25.0 mg of aspirin CoH904 (molar mass = 180.2 g/mol) in 0.250 L of water at 25.0°C. [R = 0.08206 L-atm/mol K] o 1.14 x 10-3 atm O 13.6 atm 0 2.45 atm 03.58 atm 0 0.0136 atm Item 17 Given the value of the equilibrium constant for the first...
can you please help me solve these four questions? I'm
a little desperate to finish them.
Given the following proposed mechanism. predict the rate law for the onerall reaction. 2A+B-2 C (overall reaction) Mechanism A+B-C+D A+DC slow fast O Rate = K[ AD] Rate = =k[C][D] O Rate = k[c2 w O Rate = k[A]21812 Rate = k[A][B] Part A Which of the following solutions would have the highest pH? Assume that they are all 0.10 Min acid at 25°C....
can you please help.me answer these three questions
please? I am really desperate and in need of help.
Question 1 Consider the following reaction: Al(s) + Fe2+ (aq) —— A13+ (aq) + Fe (s) When this redox equation is balanced, the coefficient in front of Fe (s) is 0 03 04 Question 2 Consider the following redox reaction in acidic solution: BrO3 + N2H4 Br + N2 When this redox equation is balanced, the coefficient in front of N2 is...
Can you please try to answer these four questions for
me?
3 pts Question 16 A calibration standard has a concentration of 0.250 M. It is found to have an absorbance of 1.256. An unknown solution has an absorbance of 0.875, what is it's molarity? Question 17 In the iron thiocynate reaction a student gets the following values: [Fe3+10:0.0024M [SCN): 0.0079 M [FeSCN2+leg: 0.00055 M Given these values calculate the Kc of this reaction. Consider the react that you did...
I need help with all three questions please and thank
you!
*four
4. Consider the reaction: 2 SOX) + g) = 2 50 (8) A 2.0 L flask was filled with 0.0400 moles o. 00200 moles of O. At equilibrium 0.0296 moles of so, were found what is the equilibrium constant for this reaction? A) 2.556 x 10 + B) 3.664 x 10 C) 6.953 x 102 D) 9.964 x 102 E) 3.116 x 10 5. What is a conjugate...
please solve what you can and show your work. I'm not really
good in chemistry??♀️
Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 1) Of the species below, only is not an electrolyte. A) HCI B) Rb2804 C) Ar D) KOH E) NaCI 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions...
Can
you please solve and provide the answer please
c. 10. Calculate the standard cell potential El using the given given data for the electrochemical cell constructed using the following reaction: Mn (s) + Ca**(aq) → Mnº(aq) + Ca(s). Half-reaction Standard reduction potential Mn* (aq) +2 e Mn(s) -1.185 V ca" (aq) +2 e Cd(s) -0.403 v a. +1.588 V d. +1.967 V b. +0.782 v e. -0.782 v -1.588 v 11. What is the value of the equilibrium constant...
Please help with all 4!!!! I'm stuck!
Part C Find the pH of a 0.130 M HF solution. Express your answer to two decimal places. IVO AQ 0 2 ? pH = 2.01 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part D Find the percent dissociation of a 0.130 M HF solution. Express your answer using two significant figures. VALO 0 2 ? Part E Find the pH of a 5.00x10-2 M HF solution Express...
Hello! Can someone help me with these questions? Thank
you!
1 Answer the following questions (a) The following substances are either Brønsted-Lowry acid or base Write the equation for the acid of base reacting with water. CO2?"(aq) + H2O(lig) - HNO3(aq) + H2O(lig) = CH3NH; (aq) + H2O(lig) = (b) Write a reaction for the conjugate base of H,PO, (aq) reacting with the conjugate acid of NH3(aq) (c) What is the pH of 0.00023 M HBr? (d) A precisely done...
Most questions answered within 3 hours.
-
Trace the following recursive methods:
a) isPal with the string “abccda”
b) isAnBn with the string...
asked 1 hour ago -
1. Which of the following is false about photosynthesis?
A. ATP is the molecule used to...
asked 1 hour ago -
A simple random sample of size n=64 is obtained from a
population with a mean of...
asked 2 hours ago -
(2 dimensions, 1 object, 2 accelerations)
1) A projectile is thrown with a wind. The wind...
asked 3 hours ago -
Brian makes $34,100 per year. How much can Brian expect to
contribute to FICA taxes in...
asked 4 hours ago -
To buy a new house you must borrow $155,000. To do this you take
out a...
asked 4 hours ago -
Spacely Sprockets is evaluating the construction of a new plant
on land the company purchased for...
asked 5 hours ago -
1. Consider a linear regression model of y on K regressors and
an intercept.
(i) Describe...
asked 5 hours ago -
Enter a balanced equation for the reaction between hydrochloric
acid and sodium sulfite.
Express your answer...
asked 5 hours ago -
Give a regular expression describing the language
{x | x ∈ Σ* and x does not...
asked 5 hours ago -
Masses of 1.0 kg, 2.0 kg, and 3.0 kg are each separately subject
to a net...
asked 5 hours ago -
The mode of philosophical argumentation and thought. How do
philosophers think and write? What is important...
asked 5 hours ago