Homework Answers
1) pH decreases
[H]+ increases
Ka increases
2) accepted value = 0.85 M
3) the experimental value is higher because the acid being tested is having high ionization constant.
4) final volume = 50mL
Final concentration = 0.6M
Initial conc = 3.0M
Volume required = (0.6×50)/3 = 10 mL
Add 10mL of 3.0 M acetic acid and add 40mL of water into that.
Add Answer to:
Discussion Hints: 1. Fill in the following statement with: increases, decreases, or remains the same. From...
After finding the rest of the calculations for trial 4, use the data table to find...
After finding the rest of the calculations for trial 4, use the
data table to find my Ka average and the molarity of the acetic
acid in vinegar.
Show work and explain neatly please! thank you.
Look for the missing calculations for trial 3 *
Concentration of Acid Measured pH Calculated Ka [H^+]eq 10^-3.3= 4.90*10^-4 1.20*10^-6 3.31 Trial 1: 0.2 3.22 10^-2.22= 6.02*10^-4 1.21*10^-6 Trial 2: 0.3 Trial 3: 0.4 3.14 Trial 4: 0.5 3.06 8.71*10^-4 1.52*10^-6 my Average Ka...
Discussion: 1. Compare the molarities of the three samples of vinegar that you analyzed. The "precision"...
Discussion: 1. Compare the molarities of the three samples of vinegar that you analyzed. The "precision" of your titration technique is how similar the three values are (the closer the values, the better your precision). 2. Compare the average molarity you obtained to the molarity of the acetic acid in the vinegar as listed on the vinegar bottle. What could account for any differences between these values? 3. How do your pH values compare to the pH determined using the...
1. In the following balanced reaction, if the rate of disappearance of A is equal to...
1. In the following balanced reaction, if the rate of disappearance of A is equal to 5 M/s, what is the rate of appearance of C? 2 A + B → 4 C + 3 D a. 10 M/s b. 20 M/s c. 2.5 M/s d. 5 M/s 2. Dissolving acetic acid and sodium chloride in water would create a buffer solution. True or False 3. For the following chemical equilibrium, what is the proper equilibrium expression (Keq)? A +...
Hope the genius can help me those questions. Thanks ♥️ Name 1. Definitions. Fill in the...
Hope the genius can help me those questions.
Thanks ♥️
Name 1. Definitions. Fill in the blank with the LETTER of the most appropriate term from the following A. Bronsted-Lowery acid C. strong acid E. weak electrolyte G. weak acid I. Arrhenius acid B. D. electrolyte base H. ions J. Arrhenius base L. autoionization of water N. Boyle's Law P. Charles Law S. pressure V. manometer X. Dalton's Law K. hydronium ion M. pH scale O. combined gas law R....
1. 200 mL of an aqueous solution contains 0.030 M concentrations of both Pb2+ and Ag+....
1. 200 mL of an aqueous solution contains 0.030 M
concentrations of both Pb2+ and Ag+. If 100
mL of 6.0 x 10-2 M NaCl is added to this solution will a
precipitate form? If so, what will the
precipitate be? The Ksp values for PbCl2 and AgCl are 1.7 x
10-5 and 1.8 x 10-10] 2. Which of the following is the expression
for the solubility product of Ba3(AsO4)2? 3. The pKa of a weak acid
is 6.50. What...
Write the expressions for Kp for the following reactions: 1. a) 2NH3(g) + Co2(g) N2CH40(s) +...
Write the expressions for Kp for the following reactions: 1. a) 2NH3(g) + Co2(g) N2CH40(s) + H20 (I) b) CuO (s) + H2(g) Cu(l)+H20 (g) 2. At room temperature, a 1.5 L flask contains 3.0 moles of Cl, 0.5 mole of NOCI, and 4.0x10 mole of NO. Calculate Ke at this temperature for the following reaction: 2NO (g) + Cl2(g) 2NOCİ (g) 0.00245 M, does this represent a system at M, [No] 0.2 M and [Ch] If [NOCI] 2.0x 10...
Acids and Bases 1) Which of the following is a general property of a basic solution?...
Acids and Bases 1) Which of the following is a general property of a basic solution? a. feels slippery b pH less than 7 c. tastes sour d. turns litmus paper red e. none of the above 2) If a vinegar sample has a pH of 5, the solution is which of the following: a. strongly acidic b. weakly acidic c neutral d. weakly basic e. strongly basic 3) Which of the following is a weak Arrhenius acid a. HNO3...
1.How does adding NaOH to deionized water affect the pH differently than adding it to a...
1.How does adding NaOH to deionized water affect the pH differently
than adding it to a buffer?
2. how would you find the Ka of solution 4, after it is
diluted from solution 3? the measured pH was 4.98 which gave a [H+]
concentration of 1.05x10^-5.
Part A - Determining the Acid Ionization Constant for Acetic Acid Solution 1 6. Take a 30.0 mL sample of 10 M HOAc and place it in a beaker. Using a pH meter, measure...
bug fix of python here's the program: import binascii file = open("nibbles.txt", "r") count = 1...
bug fix of python here's the program: import binascii file = open("nibbles.txt", "r") count = 1 bytes = "" message = "" for i, line in enumerate(file): startIndex = line.index('(') endIndex = line.index(')') co = line[startIndex:endIndex+1] # (-1.35, 2.30) coordinates = line[startIndex+1:endIndex] # -1.35, 2.30 comma = coordinates.index(',') iVoltage = coordinates[0:comma] iv = float(iVoltage) qVoltage = coordinates[comma+2:] qv = float(qVoltage) if iv >= 0 and iv <= 2 and qv >= 0 and qv <= 2: point = "1101"...
Suppose 16 coins are tossed. Use the normal curve approximation to the binomial distribution to find...
Suppose 16 coins are tossed. Use the normal curve approximation to the binomial distribution to find the probability of getting the following result. More than 11 tails. Use the table of areas under the standard normal curve given below. Click here to view page 1. Click here to view page 2. Click here to view page 3. Click here to view page 4. Click here to view page 5. Click here to view page 6. Binomial probability = (Round to...
After finding the rest of the calculations for trial 4, use the
data table to find my Ka average and the molarity of the acetic
acid in vinegar.
Show work and explain neatly please! thank you.
Look for the missing calculations for trial 3 *
Concentration of Acid Measured pH Calculated Ka [H^+]eq 10^-3.3= 4.90*10^-4 1.20*10^-6 3.31 Trial 1: 0.2 3.22 10^-2.22= 6.02*10^-4 1.21*10^-6 Trial 2: 0.3 Trial 3: 0.4 3.14 Trial 4: 0.5 3.06 8.71*10^-4 1.52*10^-6 my Average Ka...
Discussion: 1. Compare the molarities of the three samples of vinegar that you analyzed. The "precision" of your titration technique is how similar the three values are (the closer the values, the better your precision). 2. Compare the average molarity you obtained to the molarity of the acetic acid in the vinegar as listed on the vinegar bottle. What could account for any differences between these values? 3. How do your pH values compare to the pH determined using the...
Hope the genius can help me those questions.
Thanks ♥️
Name 1. Definitions. Fill in the blank with the LETTER of the most appropriate term from the following A. Bronsted-Lowery acid C. strong acid E. weak electrolyte G. weak acid I. Arrhenius acid B. D. electrolyte base H. ions J. Arrhenius base L. autoionization of water N. Boyle's Law P. Charles Law S. pressure V. manometer X. Dalton's Law K. hydronium ion M. pH scale O. combined gas law R....
1. 200 mL of an aqueous solution contains 0.030 M
concentrations of both Pb2+ and Ag+. If 100
mL of 6.0 x 10-2 M NaCl is added to this solution will a
precipitate form? If so, what will the
precipitate be? The Ksp values for PbCl2 and AgCl are 1.7 x
10-5 and 1.8 x 10-10] 2. Which of the following is the expression
for the solubility product of Ba3(AsO4)2? 3. The pKa of a weak acid
is 6.50. What...
Write the expressions for Kp for the following reactions: 1. a) 2NH3(g) + Co2(g) N2CH40(s) + H20 (I) b) CuO (s) + H2(g) Cu(l)+H20 (g) 2. At room temperature, a 1.5 L flask contains 3.0 moles of Cl, 0.5 mole of NOCI, and 4.0x10 mole of NO. Calculate Ke at this temperature for the following reaction: 2NO (g) + Cl2(g) 2NOCİ (g) 0.00245 M, does this represent a system at M, [No] 0.2 M and [Ch] If [NOCI] 2.0x 10...
1.How does adding NaOH to deionized water affect the pH differently
than adding it to a buffer?
2. how would you find the Ka of solution 4, after it is
diluted from solution 3? the measured pH was 4.98 which gave a [H+]
concentration of 1.05x10^-5.
Part A - Determining the Acid Ionization Constant for Acetic Acid Solution 1 6. Take a 30.0 mL sample of 10 M HOAc and place it in a beaker. Using a pH meter, measure...
Suppose 16 coins are tossed. Use the normal curve approximation to the binomial distribution to find the probability of getting the following result. More than 11 tails. Use the table of areas under the standard normal curve given below. Click here to view page 1. Click here to view page 2. Click here to view page 3. Click here to view page 4. Click here to view page 5. Click here to view page 6. Binomial probability = (Round to...
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