Can you please tell me about what the difference between a dilute and a concentrated souloution is? Can you please tell the difference between a acid and a base? What are their similarities and their differences? How can we know when somehting is a acid and when something is a base?
See the answer ()to Science) below for the concn versus dilute solutions. Acids have a sour taste and turn blue litmus paper red. Bases are slippery to the feel and turn red litmus paper blue.
http://www.jiskha.com/display.cgi?id=1227385639
Sure! I can explain the differences between a dilute and a concentrated solution, as well as the difference between an acid and a base. I can also guide you on how to identify whether a substance is an acid or a base.
1. Dilute and Concentrated Solutions:
Dilute and concentrated solutions refer to the amount of solute present in a solvent.
- Dilute Solution: A dilute solution contains a relatively small amount of solute compared to the solvent. It is created by adding more solvent to the solute, reducing the solute's concentration.
- Concentrated Solution: A concentrated solution contains a large amount of solute compared to the solvent. It is created by adding more solute to the solvent, thereby increasing the solute's concentration.
In summary, the difference lies in the relative amounts of solute and solvent present in the solution.
2. Acids and Bases:
Acids and bases are two types of substances that differ in their chemical properties.
- Acids: Acids are substances that release hydrogen ions (H+) in an aqueous solution. They typically have a sour taste, can corrode metals, and can turn blue litmus paper red.
- Bases: Bases are substances that release hydroxide ions (OH-) or accept hydrogen ions in an aqueous solution. They usually have a bitter taste, a slippery feel, and can turn red litmus paper blue.
Similarities between acids and bases:
- Both acids and bases are electrolytes, meaning they conduct electricity when dissolved in water.
- They can react with each other to form water and a salt in a process called neutralization.
Differences between acids and bases:
- Acids have a pH below 7, while bases have a pH above 7. pH is a scale indicating the acidity or basicity of a solution.
- Acids can corrode metals, while bases do not.
- Acids have a sour taste, bases have a bitter taste.
- Acids turn blue litmus paper red, bases turn red litmus paper blue.
3. Identifying Acids and Bases:
There are several ways to determine if a substance is an acid or a base:
- Litmus Paper: Dip a strip of litmus paper into the substance. If it turns red, it is an acid. If it turns blue, it is a base.
- pH Test: Use a pH test strip or a pH meter to measure the pH of the substance. If the pH is below 7, it is an acid. If it is above 7, it is a base.
- Taste and Feel: Acids usually taste sour, while bases taste bitter. Acids do not feel slippery, while bases feel slippery.
Remember that these methods provide preliminary indications, and more accurate identification may require further testing.
I hope this explanation helps you understand the differences between dilute and concentrated solutions, as well as acids and bases. Let me know if you have any other questions!