Register
Which could be true about an unknown sample with a pH of 7? (2 points) It contains only water. It is highly acidic. It has a very high hydroxide ion concentration. It is a solution of HF and water.
5.4k views
0 votes
Which could be true about an unknown sample with a pH of 7?

(2 points)

It contains only water.

It is highly acidic.

It has a very high hydroxide ion concentration.

It is a solution of HF and water.

User Filippo Sebastio
by
4.5k points

2 Answers

4 votes

Answer:

It contains only water.

Step-by-step explanation:

User Kerrian
by
4.9k points
1 vote

Answer;

It contains only water.

Explanation;

  • The pH of a solution is a measure of the molar concentration of hydrogen ions in the solution and as such is a measure of the acidity or basicity of the solution.
  • A pH of 7 is neutral. A solution with a pH of 7 is known as neutral solution, such a solution has equal concentration of H+ and OH- concentration. The OH- concentration balances the H+ concentrations in the solution making it neutral.
  • Pure water is an example of a solution that is neutral, has a pH of 7.
User Paulo Fernando
by
4.6k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.2m questions

6.7m answers

Other Questions

A space shuttle is approaching the surface of the moon to land. It approaches the moons surface with an initial velocity of 28m/s and is slowing at a rate of -2m/s^2. Show all work and units for problems.
________ is a measure of the internal energy that has been absorbed or transferred from one body to another, often due to a difference in temperature.
5. What happens to the arrangement of water molecules as ice melts? A Molecules gain enough energy to escape as vapor. B Molecules release enough energy to escape as vapor. C Molecules gain enough energy
A projectline is shot from the edge of a cliff 100 m above the ground with intial speed 10 m/s at an angle 30 with the horizontal. 1) determine the time taken by the projectile motion to hit the ground
You’re on a team performing a high-magnetic-field experiment. A conducting bar carrying 4.1 kA will pass through a 1.3-m-long region containing a 12-T magnetic field, making a 60° angle with the field.
Link Copied!