Read the two papers about ACA and Supreme Court ruling on ACA in Canvas folder carefully. Write an essay about ACA (What is it? What does it change?) and summarize the role of Supreme Court (What was the case about? How did the court rule? What were the arguments from both sides?). The format should […]
CHEM 121 Data Analysis Report Learning Objectives Measure pH levels at different concentrations of acids and bases Compare the effect of dilutions/concentration on strong and weak acids and bases Plot the change in pH at different concentrations for the acid and for the base on line graphs (not on bar graphs) Plot strong and […]
answer the questions from the book listed below with just a letter. questions that need to be answered are the exercise questions. the pages and chapters listed below are where you can find the questions that need to be answered. the attachment is where you see which questions need to be answered and where to […]
A plant manufacturing nails and screws uses a large pool (volume = 10,000 L) to collect and treat its residual waste water before discharging it in a nearby stream. The manufacturing process makes use of a strong acid (HCl) and a weaker one (phosphoric acid, H3PO4; pKa1 = 2.148, pKa2 = 7.20, pKa3 = 12.15), […]
-Choose ONE topic to write 5 pages essay (excluding the cover page and reference page. ) Your paper should be written according to the APA guidelines. Topics to choose from: The chemistry of diet sodas and the effect on bone structure Acid rain in your neighborhood and the effects on plants The power of […]
given the following equation N2(g)+3H2(g)=2NH3(g) determine to one decimal place the molar mass of each substance and express each mass…
Review the following reaction, where sodium carbonate and calcium chloride dihydrate react in an aqueous solution to create calcium carbonate (solid precipitate formed in the reaction), a salt (sodium chloride), and water. Na2CO3(aq) + CaCl2⋅2H2O → CaCO3(s) + 2NaCl(aq) + 2H2O(aq) Na2CO3(aq) + CaCl2⋅2H2O → CaCO3(s) + 2NaCl(aq) + 2H2O(aq) Put on your safety gloves […]
A sealed glass tube contains 2.25 g of copper and 3.32 g of sulfur. The mass of the tube and its contents is 18.48 g. Upon heating, a reaction forms copper(II) sulfide (CuS). All of the copper reacts, but only 1.14 g of sulfur reacts. Predict what the mass of the tube and its contents […]
One method used to store energy during times of low demand is by pumping water uphill into a reservoir. When energy demand exceeds the output produced by power plants, the water is released, moves downhill, and is converted into electricity by a turbine. During a 142.0 minute long period of low usage, 62.0 MW is […]
Post Lab Questions 1) How would your calculation of the average number of water molecules present in Epsom salt be affected if you heated your sample too strongly and and too long and decomposition started to take place? (Too High, Too Low, Unchanged) Explain 2) How would the calculated number of water molecules present in […]
