Summary: An Introduction To Chemistry - Atoms First Webassign Bundle | 9780984337903 | Chiral Publishing Company, et al
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8.1 Strong and Weak Acids and Bases
This is a preview. There are 40 more flashcards available for chapter 8.1
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What is litmus and how is it used in testing for acids and bases?
Litmus is a natural dye derived from lichen. It turns red in acidic conditions and blue in basic conditions. Litmus paper is paper that has been coated with litmus. To test if a liquid is acidic, we add a drop of the liquid to blue litmus paper. If the paper turns red, the liquid is acidic. To test if a liquid is basic, we add a drop of the liquid to red litmus paper. If the paper turns blue, the liquid is basic. -
What is the pH of gastric juice in our stomach?
Gastric juice in our stomach has a pH of about 1.4. -
What happens when an Arrhenius acid is combined with an Arrhenius base?
When an Arrhenius acid is combined with an Arrhenius base, they neutralize each other. This means that the acid counteracts the properties of the base, and the base counteracts the properties of the acid. -
What is the scientific term that has crept into everyday language and is used in advertisements to describe the acidic and basic strengths of solutions?
The scientific term pH has crept into our everyday language. Advertisements encourage us to choose products that are "pH balanced," while environmentalists point to the lower pH of rain in certain parts of the country as a cause of ecological damage. -
How does the pH of orange juice compare to gastric juice?
Orange juice has a pH of about 2.8, making it ten times more concentrated in H₃O⁺ ions than orange juice. -
What can happen if a strong acid gets on your skin?
A strong acid, such as nitric acid, can be handled with extreme caution, because if it gets on your skin, it could cause severe chemical burns. -
Identify each of the following as either an Arrhenius strong acid, an Arrhenius weak acid, an Arrhenius strong base, or an Arrhenius weak base: HNO₃.
HNO₃ is an Arrhenius strong acid. -
What does Figure 8.3 in the text show?
Figure 8.3 shows the pH of rain in different parts of the U.S. in 1992. The scale on the left shows the effect on fish of decreasing pH. -
What pH value indicates a basic solution?
Basic solutions have pH values greater than 7. -
What is the objective of Sample Study Sheet 8.1?
The objective of Sample Study Sheet 8.1 is the identification of strong and weak acids and bases.
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