What goes where in the calculation

I'm doing boiling point elevation and the formula (I don't know how to use the Equation Editor so I will type it out the best way that I can: delta T sub-script b is equal to k sub-script b times m times i. (k sub-script b is equal to 0.52 degrees C/m for water) I don't know how to use this calculation with this problem: Calculate the boiling point of an aqueous solution containing 3.8% by mass of NaCl. Do I take 3.8% of NaCl's mass of 58.44g? how do I set up the equation?

Environmental Chemistry

6.21 Your metropolitan area has been warned by the EPA to lower sulfur dioxide and nitrogen oxide emissions or it will lose substantial federal funding. One citizen’s group calls for conservation as a means of drastically reducing electricity consumption. A second group advocates curtailing the use of automobiles through a variety of means. Choose either of these or some other position to support. Research the position and present your findings by writing a couple paragraphs. 9.6 Gather up a variety of plastic items from your residence – plastic bags, soda bottles, whatever happens to be at hand. Make a list of the objects and note the properties of the plastics. Include color, tra... click for more

Acid, Bases, equilibra questions

Please see the attached file for full problem description.

Chemistry Problems

9.24 When you are in a supermarket, which do you usually request, plastic or paper grocery bags? List the advantaged and disadvantages of plastic versus paper bags, and decide which is preferable. Then prepare a latter to the editor of a newspaper clearly stating your position and explaining your reasons for it. 9.27 A Web search for “landfills” can bring up high quality information about garbage. If you browse through these sites, you will see that a fair amount of controversy surrounds the plastic materials that can be used to construct the liner. Search for “landfill liners” and check out the plastics involved. a. Which polymers are now used for liners? b. What are their draw... click for more

rate of reaction

CH3OH + HCl > CH3Cl + H2O The above is a chemical reaction. Below are data, time intervals and levels of concentration that it takes for HCl to react. Time (min) HCl (M) 0 1.85 79 1.67 158 1.52 316 1.30 632 1.00 How do you calculate the average rate of reaction for the time interval between each measurement? When reviewing this problem as it appears to you, please note that the data actually are two separate columns where in the first row 0 = minutes and 1.85 is M HCl the same is true for the remaining rows of data.