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How does the pH scale work?
pH is the negative logarithm, to the base ten, of the concentration of hydronium ions; in simple math terms, -log10[H3O+]. Another way to read this is that the concentration of hydronium is 10 to the power of pH, 10pH. It gives an indication of how many hydronium (and therefore hydrogen) ions are dissolved in the solution concerned; a larger number means less of it and vice versa.
What does the pH of a substance determine?
How acidic it is and how corrosive it is. Sulfur, for example, is 2. Battery acid is 1.
An example of a solution that has 1 solvent and 2 solutes?
give an example of a solution that has 1 solvent and 2 solutes.
What are the 2 conditions that destroy enzymatic activity by bond breakage?
1) Temperature 2)pH
How can you make solution of 2M of 800 ml from 5M solution?
In order to have a 2M solution is means that you have 2 moles for every 1 liter. Because you only want to make 800mL of this solution you only need (0.8*2) moles of or 1.6 moles of the compound in your solution. This 1.6 moles is coming from your 5M solution. So how much 5M do you need to take out to have 1.6 moles. A 5 molar solution has 5 moles for every liter, since you only need 1.6 moles of it that you need(1.6/5) liters of the solution or 0.32 liters (320 mL). Calculations done. So your going to take 320 mL of the 5M solution and put it into an 800mL volumetric flask and add water up to the line, or to be more exact, add exactly 460 mL of water in order to dilute the solution from 5M to 800mL of 2M solution.
What would be the pH of a solution with a hydroxide ion OH- concentration of 10-12 M?
The pH of a solution can be calculated using the formula: pH = -log[OH-]. Therefore, for a solution with [OH-] concentration of 10-12 M, the pH would be 12.
What is the pOH of a solution with a pH of 12?
1.8
How many times more basic is a solution whose pH is 12 compared to a solution whose pH is 10?
100 times. (10^2)
What is the pH of a solution with h plus equals 7.0 x 10-2?
The little 'p' means -log10 (that's the negative log to base 10). Thus pH means -log10(Hydrogen ion concentration) → pH of the solution = -log10(7.0 x 10-2) ≈ 1.15
How does a solution with a pH of 2 compare to a solution with a pH of 1?
A solution with a pH of 2 is less acidic than a solution with a pH of 1. The pH scale is logarithmic, so each unit change represents a tenfold difference in acidity. Therefore, a solution with a pH of 1 is 10 times more acidic than a solution with a pH of 2.
How does a solution with a pH of 2 compare to a solution with a pH of 7?
A solution with a pH of 2 is more acidic than a solution with a pH of 7. The pH scale is logarithmic, so each whole number change represents a 10-fold difference in acidity. Therefore, a pH of 2 is 10,000 times more acidic than a pH of 7.
What is the pH of a solution with H plus 7.0 x 10-2?
The little 'p' means -log10 (that's the negative log to base 10). Thus pH means -log10(Hydrogen ion concentration) → pH of the solution = -log10(7.0 x 10-2) ≈ 1.15
What is the PH of propionic acid?
The pH of propionic acid is approximately 3.5 when it is in a 0.1 M solution. This means that it is considered acidic.
What is the pH level in HCI?
The pH level of hydrochloric acid (HCl) is typically very low, around 1 to 2. This means it is highly acidic.
How many times a solution of pH 1 will be stronger than that of a solution having pH 2?
A solution with pH 1 is 10 times stronger (more acidic) than a solution with pH 2. This is because pH is measured on a logarithmic scale, with each unit representing a tenfold difference in concentration of hydrogen ions.
What is the pH of an aqueous solution with the hydronium ion concentration H3O plus equals 2 x 10-14 M?
The pH of the solution can be calculated using the formula pH = -log[H3O+]. Therefore, pH = -log(2 x 10^-14) ≈ 13.7. This means the solution is basic since the pH is above 7.
Is a solution with a pH of 2 twice or half as acidic as a pH of 1?
A solution with a pH of 2 is ten times less acidic than a solution with a pH of 1, not half as acidic. pH is a logarithmic scale, so each unit change represents a tenfold difference in the concentration of hydrogen ions.
