Explain what is in a buffer.

Isooctane is a good model compound for gasoline. When 1.14 g of isooctane (114 g/mol) reacts with excess oxygen in a bomb calorimeter, the temperature of the calorimeter increases by 10.0oC. The heat capacity of the calorimeter is 5.46 kJ/oC.

What elements does the compound iron oxide (Fe2O3) have

How does increasing the temperature affect a reaction? A. An increase in temperature increases the reaction rate. B. An increase in temperature slows down the reaction. O C. An increase in temperature lowers the reaction's activation energy. O D.

A certain radioactive material has a half-life of 36 minutes. Starting with 10.00 grams of this material, how many grams will be left after 2 hours? A) 1.00 grams B) 1.5 * 10-4 grams C) 3.33 grams D) 0.25 gram

You complete a titration and find that you need 2.5 mL of a 0.1M NaOH to neutralize 250 mL of the river water. How many moles of NaOH did you use to neutralize the river water?

How are natural polymers and synthetic polymers similar? A) Both are made up of phosphates and organic bases B) Both serve important roles in producing amino acids C) Both are made up of monomers that are linked by covalent bonds

How can the solubility of a solution be increased? By increasing the temperature. By decreasing the temperature. By increasing the amount of solvent added. By decreasing the amount of solvent added.

Read the scenario. Ammonia is obtained from a reaction between nitrogen and hydrogen gases. The mole ratio between hydrogen gas and nitrogen gas is 3 to 1, and the mole ratio between ammonia and hydrogen gases is 2 to 3.

Transmutation is the process of transforming one element into another through nuclear reactions. What will be the nuclide produced when Cf-249 is bombarded with C-12? Four neutrons are also produced by the reaction.

State the formula for density in words and mathematical symbols.