According to the royal society of science the concentration of CO2 has gone up by 90 parts per million (PPM) since the 1800's. ... According to SATYA an organization that focuses on issues such as environmentalism says that, "since 1945, half of the world's rainforests have been burned, bulldozed and mined to oblivion. ... The "greenhouse effect" was first explained by the Swedish Scientist Svante Arrhenius however the connection to the combustion of fossil fuels in new. ...

• Word Count: 573
• Approx Pages: 2
• Grade Level: Undergraduate

Arrhenius acids and bases make up a class of compounds, which include many of many of our most common compounds and laboratory reagents. ... According to the Henderson-Hasselbalch equation, pH = pKa + log [base/acid] If there are equal moles of weak acid and the base, NaOH at the half-equivalency point during this lab, then the pKa is equal to the solution's pH value. ... The weak acid, HA ionizes according to the equation: HA  H+ + A- The ionization will occur until equilibrium is established. ...

• Word Count: 1211
• Approx Pages: 5
• Grade Level: High School