When you carve out time for studying, you want to make the most of it. Most students, especially at busy times of the term, can’t spare losing an hour to constant diversions. In order to maximize your time, it’s wise to use strategies that will help you get down to business and stay focused. Whether you’re concerned about getting into a studying groove early in the term or battling finals fatigue, there are tried and true tactics that can help stave off distraction and help you get back on course when interruptions happen.
Finally, allow yourself ample, well-timed breaks. During break time, schedule an activity that gets you totally away from your books. Get up and move. Socialize. Go work out or do something fun. When you make your breaks count, you’ll be genuinely refreshed and ready to focus again.
The concentration is 10 mg/L.
If concentration of Hydrogen in solution is 10-2 then its pH must be 2.
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The concentration of hydronium ions in a solution can be calculated using the formula Kw = [H3O+][OH-]. Given the hydroxide concentration as 0.0000125 M, you can find the hydronium ion concentration by dividing Kw (1.0 x 10^-14 at 25°C) by the hydroxide concentration. In this case, [H3O+] = 1.0 x 10^-14 / 0.0000125 = 8.0 x 10^-10 M.
The pH of a solution with a hydrogen ion concentration of 6.3 x 10^-10 is 9.2. This is because pH is calculated by taking the negative logarithm of the hydrogen ion concentration, so pH = -log(6.3 x 10^-10) = 9.2.
The hydronium ion concentration can be calculated using the formula [H3O+] = 10^(-pH). So, for a pH of 4.12, the hydronium ion concentration would be 10^(-4.12) = 7.79 x 10^(-5) M.
pH=10, means the concentration of OH- ions is 0.0001 M and concentration of H+ ions is 0.0000000001M
The Increased Difficulty of Concentration was created on 1994-10-25.
The hydronium ion concentration can be calculated using the formula [H3O+] = 10^(-pH). Therefore, for a pH of 8.2, the hydronium ion concentration would be 10^(-8.2) = 6.31 x 10^(-9) mol/L.
Remembwer pH is = the negative logarithm to base ten, of the hydrogen ion concentration . So with a concentration of 0.001 M The hydrogen ion concentration is 0.001 = 10^(-3) ph = -log(10)[H^+] pH = -log(10)10^-3 pH = -(-3) log(10)10 ( Remember log(10)10 = 1 ) pH = -(-3)(1) = --3 = 3 pH = 3
The concentration of oxygen in water is 88,88 %.
The pH is calculated by taking the negative base 10 logarithm of the H3O+ concentration. For an H3O+ concentration of 1.47 x 10^-7 M, the pH would be 6.83.