Webb30 dec. 2024 · Divide this answer (10.35 M × mL) by the volume of the acid HCl (0.15 mL) MA = (MB × VB)/VA = (0.500 M × 20.70 mL)/0.15 mL = 0.690 M. The concentration is expressed as a number of moles per liter of solute. What is the pH of 49 mL of 0.1 M HCl and 50 mL of 0.1M HCl solution? pH is 3.00. The number of moles of H+ ions from HCl is … Webb3 aug. 2007 · To add to Christina's post, pKw = -log Kw = -log 2.92 x 10^-14 = 13.53 so at pH = pOH = 6.77 then pH + pOH = 6.77 + 6.77 = 13.54. You WON'T get 14 for pKw because it isn't at room temp. That's why Kw isn't listed as 1 x 10^-14. Thanks so much! I'm having a really hard time with this acid/base stuff! asked by Taasha August 3, 2007
pH Scale: Acids, bases, pH and buffers (article) Khan …
WebbChemistry questions and answers. (graded for correctness; ignore sig. figs.) Part I Determine the pH of the following solutions: 1. [H+1] = 4.6 X 10-14 M 2. [H+1] = 5.4 X 10 … WebbpH + pOH = 14 If the hydrogen ion concentration is known, the first relationship can be used to calculate the hydroxide ion concentration. [OH-] = 1.0 X 10-14 0.10 = 1 X 10-13M Suppose the pH of an acidic solution is 1.0. The second relationship can be used to calculate the pOH. 1.0 + pOH = 14 pOH = 13 fish for outdoor ponds
CHEM1120 - Chapter 15, Quiz 3 - Tennessee Technological …
Webb13 mars 2024 · Ph.D. University Professor with 10+ years Tutoring Experience. About this tutor ›. pH is defined as the negative log of the hydronium ion concentration. In this … Webba solution with pH 4 (i.e. [H+] = 1 × 10 − 4 M) In fact, for each unit increase in pH, there is a 10 fold increase in the hydrogen ion concentration. To go from pH to [H+] you need to … Webb21 jan. 2016 · The pH of 0.02 M solution of an unknown weak acid is 3.7, how would you find the pka of this acid? Organic Chemistry Acids and Bases pH, pKa, Ka, pKb, Kb 1 Answer Truong-Son N. Jan 21, 2016 Knowing the pH, you know the concentration of protons: −log[H+] = pH = 3.7 [H+] = 10−3.7 M fish for outside pond