Complete the table below. Round each of your entries to 2 significant digits. You may assume the temperature is 25 °C. conjugate acid conjugate base formula HNO₂ K Ко formula ☐ 4.5 × 10 4 K₁₂ × -5 NH3 1.8 × 10 -7 HS 1.8 × 10 G x10
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- A soft drink contains an unknown mass of citric acid, C3H5O(COOH)3. It requires 6.42 mL of 9.580 × 10−2-M NaOH to neutralize the citric acid in 10.0 mL of the soft drink. C3H5O(COOH)3(aq) + 3 NaOH(aq) → Na3C3H5O(COO)3(aq) + 3 H2O(ℓ) Determine which step in these calculations for the mass of citric acid in 1 mL soft drink is incorrect? Why? n (NaOH) = (6.42 mL)(1L/1000 mL)(9.580 × 10−2 mol/L) n (citric acid) = (6.15 × 10−4 mol NaOH) × (3 mol citric acid/1 mol NaOH) m (citric acid in sample) = (1.85 × 10−3 mol citric acid) × (192.12 g/mol citric acid) m (citric acid in 1 mL soft drink) = (0.354 g citric acid)/(10 mL soft drink) Determine the correct result.A chemist prepares a solution of silver(I) perchlorate AgClO4 by measuring out 470 mol of silver(I) perchlorate into a 200 mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver(I) perchlorate solution. Round your answer to 3 significant digits. molLGive the name and identify each of the following as an acid or a base: Substance Name Acid or Base H2SO4 Ca(OH)2 Mg(OH)2 HCl (aq)
- An aqueous solution at 25 °C has a H₂O concentration of 6.2 × 10¯M. Calculate the OH concentration. Be sure your answer has the correct number of significant digits. -7 1.61 × 10 M x10 X ŚWhat is the pH of (3.21x10^-1) M C5H5NHBR? Enter your answer in scientific notation with 3 sig figs. Do not include any units in your answer. Do not round any intermediate calculations. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: х10 AnswerComplete the table below. Round each of your entries to 2 significant digits. You may assume the temperature is 25 °C. formula conjugate acid Hạ BO, HBrO I Don't Know R F * % 5 Ka 5.8 x 10 0- -10 2.3 × 10 T -9 Submit G 80 B ^ 6 formula 0 C₂H₂N I Y conjugate base 0 MacBook Pro H & 7 N Kb 0 1.7 X 10 0 -9 00 8 1 M 0, X ( 9 K 0° 0.2 S O © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center ) O L P O : 1 { = 2 1
- An analytical chemist weighs out 0.182 g of an unknown triprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. She then titrates this solution with 0.0600 M NaOH solution. When the titration reaches the equivalence point, the chemist finds she has added 47.4 mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits. 0 mol x10 X SA student prepares a a1.0mM aqueous solution of 4-chlorobutanoic acid C3H6ClCO2H. Calculate the fraction of 4-chlorobutanoic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits.In a titration experiment, 29.1 mL of 0.953 M HCOOH neutralizes 23.2 mL of Ba(OH)₂. What is the concentration of the Ba(OH), solution? Round your answer to 3 significant digits. M 0x10 X 5
- <-8 An aqueous solution at 25 °C has a H₂O* concentration of 2. x 10 M. Calculate the OH concentration. Be sure your answer has the correct number of significant digits. M x10 ?A student prepares a 1.2 mM aqueous solution of benzoic acid (C,H,CO,H). Calculate the fraction of benzoic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. 0% DP de MSuppose a 0.028 M aqueous solution of sulfuric acid (H₂SO4) is prepared. Calculate the equilibrium molarity of SO4. You'll find information on the properties of sulfuric acid in the ALEKS Data resource. Round your answer to 2 significant digits. M x S