GriffinScience

Remember back to our studies of acids/bases when we covered the bit about the importance of hydrogen ions? Hopefully so, because this is pretty cool… What does a proton taste like?: ” Drawing attention to the fact that the ability to detect ‘sour’ tastes is one of the least well-understood gustatory talents. But progress has [...]

Image from the Washington Post article… Life, as we thought of it, requires six elements… nitrogen, oxygen, sulfur, carbon, hydrogen and phosphorous. Except we now realize phosphorous can be substituted with arsenic. If you check out the periodic table, you’ll see that the elements phosphorous and arsenic are in the same family/group. This is just [...]

Here is Homework 10 that is due on Thursday, December 2, 2010 at 11:59 PM EST… Homework 10: Acids, Bases and Solutions – This week, we are studying acids and bases. These topics are a great bridge between the Fall and Spring semesters as we transition from the study of Chemistry to the study of [...]

More fun info based on our studies of elements, chemical reactions, acids and salts so far this year… HowStuffWorks “Why does fake gold turn your skin green?”: “When you buy a cheap, fake gold ring, it’s likely made of mostly copper. When you perspire, the metals in the ring react with the acid in your [...]

Here is the Pop-Review Quiz we did in class today (click). Remember, our 50 POINT test on Chapter 7 is tomorrow! QUESTION 1 Which is not a type of mixture? Solution Colloid Acid Suspension QUESTION 2 Sugar water is an example of a: suspension solution solute colloid QUESTION 3 Ammonia is an example of a(n): [...]

Here are the five review podcasts to help you prepare for our TEST on chapter 7 this Wednesday… Section 7.1: Listen! Section 7.2: Listen! Section 7.3: Listen! Section 7.4: Listen! Chapter 7 Wrap-Up: Listen! Let me know if you have any questions!

Here is the note sheet covering section 7.4 from today’s class (click). 1. What is a hydrogen ion? 2. What is the key to the reaction of acids? 3. Please give another definition of acids based on what we’ve learned about hydrogen ions. 4. What are many bases made from? 5. Describe the hydroxide ion [...]

Here is the notesheet from today’s class on section 7.3 on acids and bases (click). Remember, your homework (due Monday) is 7.3 Section Assessment #1-2 on page 241. 1. What is an acid? 2. What are some common acids? 3. Acids taste a certain way… how do they taste and should you use that property [...]

Here is the note sheet we completed in class today on section 7.2 (click). Remember, your homework is Section 7.2 Section Assessment p. 235 #1-3! 1. What is a dilute solution? Please give an example. 2. How does a concentrated solution differ from a dilute solution? 3. How can you change the concentration of a [...]

Here are the notes we covered in class for section 7.1 on Solutions, Colloids and Suspensions. Remember, your homework is the Section Assessment #1-3 on page 227! 1. What is a solution? 2. What is the difference between a solute and a solution? 3. What is the “universal solvent”? Give examples of these types of [...]