June 2018 S M T W T F S « Apr 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Author Archives: Mr. Leal
Determine the number of grams needed to make 150 mL of 0.20 M NaOH solution. If you remove 5.00 mL of 0.20 M NaOH solution and evaporate all the water, how many grams of NaOH will remain?
Complete on separate paper and submit to the In-Box: Hydrogen gas reacted with oxygen gas producing water vapor in a closed container. The system then established equilibrium. Write the balanced equilibrium equation. Write the equilibrium expression (Keq = ??). 0.505 … Continue reading
Complete on separate paper and submit to the In-Box when finished. What are 2 types of mixtures and how are they different? Make a drawing to support your answers. What are 2 things that are needed for a chemical reaction … Continue reading
Nitrogen gas reacted with hydrogen gas producing ammonia gas (NH3) in a closed container. The system then established equilibrium. Write the balanced equilibrium equation (remember diatomics?) Write the equilibrium expression (Keq = ??). 2.0 grams of nitrogen gas and 0.10 … Continue reading
Name 4 layers of the Earth’s Atmosphere and list 1 significant fact about each layer. What do you think is a mixture? Give 2 examples.
Using your textbook, re-read page 148 about each of the 6 Air Quality examples and complete the following: Write a summary statement about each of the 6 examples. Write 1 question you have about each example. When finished, go to … Continue reading
Define Boyle’s, Charles’, and the Ideal Gas Law. What is held constant in Boyle’s Law? Make a graph for both Boyle’s and Charles’ Law labeling both axes. Write the statements of the Kinetic Molecular Theory. (Look here). A ball has … Continue reading
12.5 grams of Neon gas is in a 2.0 L bottle at 745 torr pressure. What is the temperature in K and C of the gas? (Remember the steps: make list of givens, determine gas law, isolate unknown, make conversions … Continue reading
Complete the following problems in your notes. A balloon with a volume of 3 L at 25 C is heated to 35 C. Make a drawing of the balloon before and after heating. Then, determine the new volume? A 2 … Continue reading