# biology

posted by .

What is the name of the instrument use in measuring
Ph slope,depth of water,hydrogen ion concentration.

• biology -

What vessels carry oxygen rich blood to the left atrium?

## Similar Questions

1. ### College Algebra

The hydrogen ion concentration of a substance is related to its acidity and basicity. Because hydrogen ion concentrations vary over a very wide range, logarithms are used to create a compressed pH scale, which is defined by pH=-log(H+)where …
2. ### Chemistry

Given the concentration of either hydrogen ion or hydroxide ion, use the ion product constant of water to calculate the concentration of the other ion at 298K A. [H+]= 1.0*10^-4 B. [OH-]=1.3*10^-2 for A do you subtract 1.0*10^-14?
3. ### biology

Suppose that I have one liter of water in which the ionization of water molecules has attained equilibrium. What is the hydrogen ion concentration or [H+] of this solution?
4. ### Chemistry

What happens to the hydroxide ion concentration in aqueous solutions when we increase the hydrogen ion concentration by adding an acid?
5. ### math30

The formula for determining the pH of a solution is pH = -log[H+], where [H+] is the hydrogen ion concentration (in M/L). What is the hydrogen ion concentration of an acid with a pH of 2.5?
6. ### math30

The formula for determining the pH of a solution is pH = -log[H+], where [H+] is the hydrogen ion concentration (in M/L). What is the hydrogen ion concentration of an acid with a pH of 2.5?
7. ### Chemistry

2. What is pH? A.) the negative logarithm of the hydrogen ion concentration B.) the positive logarithm of the hydrogen ion concentration C.) the negative logarithm of the hydroxide ion concentration D.) the positive logarithm of the
8. ### chemistry

pure water has a hydrogen ion concentration of 1 x 10-7 m and a ph of 7. a student measures a basic solution and finds that it has a hydrogen ion (H+) concentration of 1 x 10-3. explain why the student must have an error in her statement
9. ### Chemistry

Hydrogen Storage in Alloys - The Future? Certain alloys such as LaNi5 can store hydrogen at room temperature. A plate of LaNi5 containing no hydrogen is placed in a chamber filled with pure hydrogen and maintained at a constant pressure.
10. ### Algebra

Use the formula pH = −log[H^+] 9.. The hydrogen ion concentration of a substance is 4.3*10^-6 × moles per liter.Find the pH. Round to the nearest tenth. 10. Find the hydrogen ion concentration of a solution whose pH is 5.3.

More Similar Questions