Q: If I have 1 mole or 10.8 x 10^-3 moles of H2SO4 and a volume of 100 mL of H2SO4 what is the…
A:
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Q: On their second titration trial, the CHM 111 student recorded an Initial titrant volume of 9.95 mL…
A: Given : Initial titrant volume = 9.95 mL And final titrant volume = 29.80 mL
Q: How was the theoretical value of the pKa determined? In that given graph
A: Explanation is given in the following step.
Q: The Ka for an acid is 7.91 x 10-29. Calculate the pKa for this acid.
A: The pKa for the acid is to be calculated
Q: Which of the following contains the highest concentration of H3O+? Group of answer choices 0.1 M HA,…
A: We know that, More is the pka value less will be the acidity and less is the pka value more will be…
Q: What is the pKb of the conjugate base of a weak acid that has a pKa equal to 3.52? (temperature is…
A: Given that : pKa = 3.52 pKb = ?
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A: The solubility reaction of Fe(OH)3 is Fe(OH)3 (s) ----> Fe3+ (aq) + 3 OH- (aq) Assuming that…
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Q: What is the pH of a solution containing 0.642 mol L-1 of a weak acid with pKA = 3.01 and 0.865 mol…
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Q: Ka for hydrofluoric acid is 6.8 x 104. What is the first digit of the pK value for hydrofluoric…
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Q: 17) 721 10 mg40 10 mg
A: Question - 17 : 7.21 × 103 mg + 43.8 × 102 mg = ?
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A: dd
Q: I CottizO +L6O27 L6CO2+ What are the molars you might need ? DEP coti2 OLo
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A: Molar concentration is the concentration of a solution expressed as moles/liter and molarity…
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Q: Calculate pKa
A: Given :- Ka for acetic acid = 1.8 × 10-5 To calculate :- pKa value
Q: If the pKa of an acid is 3.29 what is the aka of the acid? 1950 0.303 0.517 5.13x10^-4
A: pKa = -LogKa This is our working formula…
Q: How many moles of calcium fluoride (78.07 g/mol) will dissolve in 10.0 L of water at 25°C? Ksp of…
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Q: After graphing E vs 1 n initial 2 you obtain the following best-fit linear line: y = -1.18x + 5.55.…
A: Rearrange the equation of energy:
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A: here we are required to find the % vitamin C in the tablet.
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Q: ubstance pH [H3O+] Lemon Juice 2.20 Coffee 5.00 Soil 3.2 x 10-6 Apple Juice…
A: The pH value of a solution is equal to –log[H3O+]. A solution which has a high pH value has a lower…
Q: Acetic acid has a Ka of 1.8 x 10-5. Calculate pKa rounded to two decimal places.
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Q: Quèstion 8 The number of valance electrons of Zinc(Zn30) is 2. 30 None of the above A Moving to…
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Q: If the pKa of an acid is 3.7, what is the Kb value of the acid?
A:
Q: After graphing E vs 1 n initial 2 you obtain the following best-fit linear line: y = -1.04x + 3.86.…
A: Linear equation: y = -1.04x + 3.86We need to calculate RH from the slope of the…
Q: A student determines that the value of Ka for H2SO3 = 2.3×10-2 . What is the value of pKa?
A: pKa is the measure of determining the strength of the acid. Lower the value of pKa, stronger will be…
Q: Which of the hypothetic equations below is incorrectly balanced: a. 2 X + 3 Y2Z4 → 1 X2 (Z4)3 +…
A: A balanced chemical reaction is that where all elements on reactant side have same composition as…
Q: The hydronium ion concentration in a solution of an unknown weak acid is 5.77 x 1011. What is the…
A: Pka value is depends upon concentration of H+ ions in the solution.
Q: pKa values are different in different solvents. For example, the pKa of hydrofluoric acid (HF) in…
A: Acid dissociation constant, Ka is a measure of acid strength. Higher the Ka, higher will be the acid…
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A: Given data : Initial volume(V1) = 3.25 mL Initial concentration(M1) = 4.21 × 10-7 mol L-1 Final…
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A: 1- First determine the moles of base ( tris) and it's salt ( tris hydrochloride ) : a) moles of…
Q: For an acid HA with a pKa of 5.2, what is the ratio of the concentration of the conjugate base to…
A: The dissociation reaction of acid HA can be written as => HA ------> H+ + A- Conjugate base…
Q: 175.0 mL of 0.10 M C2H5NH2 with 285.0 mL of 0.20 M C2 H5NH3 Cl Express your answer using two decimal…
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A:
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Q: 7. What is the OH¯ concentration to 3 decimal places? ch as 1.23 x 10-4 enter is as 1.23 E-4
A: We will calculate concentration of OH-
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Solved in 3 steps
- Use a calculator when necessary to answer the following questions. a. What is the pKa for each Ka: 10−10, 10−21, and 5.2 × 10−5? b. What is the Ka for each pKa: 7, 11, and 3.2?An acid is found to have a pKa = –1.15 at 25 °C. What is the Ka (to two decimal places) of the acid?What is the Ka of an acid whose pka is 9.01? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Type your numeric answer and submit ! Cannot be empty
- the question states that the Ka value was 3.0 x 10-8 but in step two to calculate the value of pKa you calculated using the -log of 30.0 x 10-8 why did you use that number instead?The Ka for an acid is 7.91 x 10-29. Calculate the pKa for this acid.Acetic acid has a Ka of 1.8 x 10-5. Calculate pKa rounded to two decimal places.
- What is the pH of a 0.10 M solution of an acid with a pKA of 8.4?If the concentration of an acid in solution is 2.2 times larger than the concentration of its conjugate base, and the pH of the solution is 3.5, what is the pKa of the acid? Include the answer to 3 significant figuresGiven a Ka value of 1.3 X 10-10 for phenol (a benzene with an alcohol group on it-aromatic alcohols are acidic-who knew?), what is its pKa? 7.20 8.75 6.80 9.89
- For an acid HA with a pKa of 5.2, what is the ratio of the concentration of the conjugate base to that of the acid at pH 7.2.What is the Ka of an acid that has a pKa value equal to 3.93?The K, of an unknown weak acid is 2.2 x 10-8. Determine the pk, of the weak acid. Give your answer to two decimal places. Answer: