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Discussion Post: Gloucester the Use of General Chemicals
Read the chapters by Rachel Carson titled "A Fable for Tomorrow and The Obligation to Endure" from her book "Silent Spring" and discuss your thoughts relative to the use of pesticides and the general use of chemicals throughout our everyday lives. Is the scenario that Carson describes in the chapter a possibility? To what degree are pesticides/chemicals/fertilizers necessary? What are the alternatives and are the alternatives viable? Have you seen any of the alternatives in use? Do you use any of the alternatives? These are some of the points you can discuss. Feel free to expand on the topic and questions as appropriate. You may want to search other sources to substantiate any comments or thoughts.
HBr is mixed with water. Which is the best description of what you would expect to find in the solution
A sample of ammonia gas (NH3) is completley decomposed to nitrogen gas and hyrdogen gas. If the total pressure at the end of the reaction in 866mmHg
calculate the mass of propylene glycol rmc3 rmh8 rmo2 that must be added to 0.340 kg of water to reduce the vapor
Consider the following reaction: CH3-Cl + I- ? CH3-I + Cl- Suppose we start the reaction with an initial concentration of CH3-I of 0.260M. Over a period of 1 hr 20 min, the concentration increases to 0.840M. What is the rate of the reaction
The density of hexa-fluorobenzene is 1.61 g/ml. If you mix dichloromethane, water and hexafluorobenzene together how many layers will there be and what will their positions be
The precipitate is filted off and potassium sulfate is added to the remaining solution, producing no precipitate. When potassium carbonate is added to the remaining solution, a precipitate forms. Write net ionic equations for the formation of each..
The thermal decomposition of acetaldehyde, CH3CHO->CH4+ CO, is a second- order reaction. the following data were obtained at 518 degrees C.
To melt an ionic solid, energy must be supplied to disrupt the forces between ions so the regular array of ions collapses. If the distance between the anion and cation in a crystalline solid decreases
While backpacking in the wilderness backpackers often boil water to sterilize it for drinking. Assume you are planning and need to boil 30 L of water for your group. Explain what volume of the fuel should you bring? Presume the following the fuel ..
Assume also that surface tension and viscosity of the beverage plays no role, and we have Patm = 105 Pa, ?beverage = 103 Kg/m3.
Assume that the initial purple solution is 16.05mg/L in sodium salicylate, 0.15M in HCl and 0.065 M in iron(III) ions. What are the concentrations of these three once you diluted the 10.00 mL to a final volume of 50.00 mL in the volumetric flask
What is the cell potential for the reaction Mg(s)+Fe2+(aq) -> Mg2+(aq)+Fe(s) at 63 degrees celsius when [Fe2+] = 3.50M and [Mg2+] = 0.310M. Express your answer to three significant figures and include the appropriate units.
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