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- What is the pH of a buffer solution that is 0.416 M in ammonia and 0.406 M in ammonium chloride (NH4CI)? The K, of ammonia is 1.8 x 10-5. (Two decimal places) Type your answer...A buffer is made up of equal volumes (513.8 mL of each) of 0.846 M A H and 0.845 M A minus. 15.54 mL of 0.404 M N a O H is added to the buffer. How many moles of A H are present after the addition of N a O H? Please use correct significant figures. Answer: 0.428 M3) A solution contains0.023Macetic acid and0.0.018Msodium acetate. The Ka for acetic acid is1.8×10−5. What is thepHof the solution? ( Please type answer note write by hend )
- What is the pH of a buffer solution that is 0.493 M in hydrofluoric acid and is 0.483 M is potassium fluoride? The K, of hydrofluoric acid is 6.4 x 104. (Two decimal places) Type your answer...the answer) Calculate the pH of a buffer that is 0.158 M HCIO and 0.099 M NaCIO. The K₂ for HCIO is 2.9 x 10-8. (3 sig figs in . Calculate the pH after 10 mL of 1M HCI is added to the buffer if it was a 1 L solution.4) Which of the following shows the intracellular buffer? H:PO + H НРО + Н A) H:PO4 B) H:PO: C) HPO? D) H:CO; HCO +H* PO. + H*
- Write the reaction that occurs and calculate the pH after... 15.0 mL of 0.100 M NaOH is added to 5.00 mL of 0.150 M HCl 25.0mLof0.10MNaOHisaddedto40.0mLof0.20MHF. (Ka 3.5x10-4) 80.0mLof0.10MNaOHisaddedto40.0mLof0.20MHF. (Ka 3.5x10-4)What are the K1 and K2 (dissociation constants)? Given... Molarity NaOH: .3, Concentration of unknown: 31 g/L # mL NaOH to reach 1st inflection point: 25 (pH 4) # mL NaOH to reach 2nd inflection point: 50 (pH 11) pH @ 1st 1/2 equivalence point: 2.635) The K, of 0.264 M Hydrofluoric acid; HF is 4.22 x 10-4. The % ionization of the acid is: a) 7.62% b) 12.8% c) 4.00% d) 0.422%
- What is pOH of a solution consisting of 1.35 M NH3 and 2.08 M NH4NO3? K, of NH4 * is 5.8 x 10 10 0 4.94 0 494 0 9.0615:47 Tue Mar 7 1 4 Question 6 of 10 What is the molarity of ions in a 0.824 M solution of Li₂SO4 assuming the compound dissociates completely? 2 5 8 7 +/- Tap here or pull up for additional resources 1.684 M 3 6 9 0 ome x160 X C Submit x 100 < 1. m a. a 3. M 4. M 5. M D -W the 0 a. N 8.1 N 14 0 w ob ww -tra - 2₁ Sul 7. 2. % W ob Frahow to solve the given below (please show the solution and formula) Question#1 How many ml of 0.1500M H2SO4 are required to neutralize a.) 30 ml. of 0.30N KOH b.) 30 ml. 0.30N Ba (OH)2 c.) 20 ml. of a solution containing 10.0g KHCO3 per 100ml Question#2 (please show solution and formula) How many ml. of 0.2000N HCI and how many ml. 0.2000N H2SO4 can be neutralized by 20.0ml of 0.1500N NaOH?