Acids and Bases

Acids and Bases Watch the video and answer the following questions What’s the difference between a proton and a positively charged hydrogen ion? Hydrogen ions have one electron and protons don’t have any Protons weigh more than hydrogen ions Protons are neutral and hydrogen ions have a positive charge They are the same Which of the following statements is true: Our stomachs are about as acidic as our blood is basic Our stomachs are about as basic as our blood is acidic Our stomachs are far more acidic than our blood is basic Our stomachs are far more basic than our blood is acidic Which acid is stronger, hydrochloric or acetic? hydrochloric acetic they are the same strength we cant tell Two important characteristics of acids and bases are: (1) strength and (2) concentration. We talked about strength in the video, but not concentration. What is the difference between a strong acid and a weak acid? Vinegar is about 5% acetic acid. Is this a measure of its strength or concentration? If you were given the choice between drinking a solution of 0.1% hydrochloric acid (a strong acid) to 70% acetic acid (a weak acid), which would you choose and why? Is there any additional information you’d need to answer this question? (Note: DON’T DRINK THINGS THAT AREN’T MEANT TO BE DRUNK. THIS IS PURELY A THOUGHT EXPERIMENT.) A proton deposit customer (an acid) is most similar to _ A proton withdrawal customer A electron withdrawal customer A electron deposit customer None of the above If you were to mix a strong acid with a weak base, would they completely neutralize each other? Yes, always No, because a weak base cannot neutralize a strong acid No, because only acids can neutralize acids There’s no way to tell from the information given Suppose you mix hydrochloric acid (a strong acid) with ammonia (a weak base). Would the final mixture be acidic, basic, or neutral? As you might have guessed, there’s not enough information given to answer the question. What other information would you need? Why is donating a proton not very different from accepting an electron? At about 1:20, we show the picture for hydrochloric acid. Draw equivalent pictures for acetic acid and ammonia. In each case, show the donated (or accepted) proton (or electron). Use the tools in the tool bar to draw your answer