PHET pH Scale Basics

What is the purpose of using the pH Scale Basics simulation in the lab?

• To determine the temperature of a solution

• To measure the density of a liquid

• To determine if a solution is acidic or basic using pH

• To calculate the volume of a liquid

How does the pH scale relate to the color of a liquid?

• It determines the boiling point of the liquid

• It indicates the acidity or basicity of the liquid

• It shows the liquid's viscosity

• It measures the liquid's electrical conductivity

What effect does dilution have on the pH of a solution?

• It always increases the pH

• It always decreases the pH

• It can increase, decrease, or not change the pH

• It has no effect on the pH

What is one of the learning goals of the pH Scale Basics lab?

• To learn how to calculate molecular weight

• To organize a list of liquids in terms of acid or base strength

• To understand the principles of thermodynamics

• To study the effects of pressure on gases

Which of the following drinks has the highest pH?

• Alkaline water

• Fruit juice

• Gatorade

• Vinegar

Which drink would likely have a higher pH if diluted with water?

• Vinegar

• Gatorade

• Fruit juice

• Green tea

The color of a solution identifies if it is an acid, base, or neutral solution.

• True

• False

• Red is acid & clear is base

Which solution is basic?

• Solution A

• Solution B

• Solution C

• More than one

• None

How will adding water affect the pH?

• Increase the pH

• Decrease the pH

• No pH change

How will equal amount of water affect the pH?

• Increase the pH

• Decrease the pH

• The pH will be cut in half

• No pH change

Tags

NGSS.HS-ESS2-5