pH of a buffer and buffer capacity Example: For a buffer solution consisting of 0. 1 M acetic acid and o1M sodium acetate the ph of the solution is 4.75 HAc= i If an amount of hydrochloric acid equivalent to 10% of the acetate present, is added to the buffer, what is the new pH of the solution?

The discovery of the ozone hole The British Antarctic Survey has been monitoring for many years, the total column ozone levels at its base at Halley bay in the antarctica Monitoring data indicate that column ozone levels have been decreasing since 1977. This observation was later confirmed by satellite

Whether and climate Weather is the condition of the atmosphere in terms of temperature, humidity, winds and precipitation Climate is defined as the average weather over various time periods ranging from a few weeks to decades to geological timescales Whether and climate are ultimately determined by location, topography, and the exchange of radiant energy between the Sun, Earth, and space

Cloud albedo forcing: Cooling Shortwave Radiation The shortwave ays from the Sun are scattered in a cloud; many of the rays return to space. The resulting\cloud albedo forcing taken by itself

Book Ii Unit 10 Section A The Bermuda Triangle Phenomenon I Warm-Up Questions: 1. Have you ever heard of the Bermuda Triangle? Do you know its location? 2. What have you heard about it? 3. According to your idea, why things disappear in that area?

Preview: Riddle: It does exist. But it will never return. What is it? Americans value time and save it carefully. Time is a real, precious resource to them so every minute must count. Visitors may think Americans are always in rush and under pressure. Smiles and short conversations, and small exchanges with strangers don't exist because Americans dislike

Unit six Section A How to Prepare for Earthquakes Warm-up questions 1. Have you ever been in an earthquake? 2. What do you think you would do first if the room started to shake? 3. How should we prepare for earthquakes?

Book two Unit nine Preview Students all over the world dream of what will happen in their future. Many hope to travel abroad where they can both use their education and earn a good salary. Large, modern countries like English and America welcome such graduates, making it easy for them to enter the count

Stress can kill you. Being tense can damage your heart so it is wise to take charge of your life and realize you cannot control everything. But you can control stress which is caused by fear, uncertainty, doubt and lack of control. Anger may be the root of this stress, especially for hardworking professional women and people with no goals in life. To relax and take control, try the NICE factors: new, interesting, challenging experiences. And follow Ben Franklin's example

Structure Editor Window o open the structure Editor window o click the structure Editor the main tool bar se the Tools I Structure Editor item structure by choosing the File I Open I Structure menu item and structure Editor will start automatically Only one Structure Editor window can be opened at any one time in the program. If you click the structure Editor button, or you choose the Too/s I Structure Editor menu, and the Structure Editor is already opened, this window becomes active