IMG-20231207-WA0001

An action will elevate the concentrations of three chemicals in the drinking water supply: 1,1,1- trichloroethane to 2 mg/L, tetrachloroethylene to 0.04 mg/L and 1,1-dichloroethylene to 0.1 mg/L. Determine the lifetime risk of developing an undesirable health effect due to this exposure for a 50 kg adult who drinks 1 L/day of water containing these elevated pollution levels. Is there cause for concern? Why?

For both images do the following: a)  Give the full name for the molecule shown above: b) In 1 sentence, What is the physiological importance of this molecule?

11-5. Write the stepwise acid-base reactions for the following species in water. Write the correct symbol (for example, Kb) for the equilibrium constant for each reaction and find its numerical value. HN NH Piperazine CO₂ CO Phuthalate jon

Now, on top of the structure of methyl amine (CH3NH₂) below, select the region where the partial negative charge (8-) would be located within the structure. Keyboard controls Add selection I & H C-N H :H H

Read and interpret the following information using the following abstract from a scientific journal article. In 2-3 sentences, summarize what you understand from this research

3) A 28 yr old woman is newly sober for the past 3 months after completing an intensive outpatient recovery program. She wants to hang out with her co-workers at happy hour in a local club. She is anxious but goes out with them and orders a soda. She feels good that she was able to go out and not have an alcoholic drink. The following week the same scenario plays out without her having an alcoholic beverage. Is she on the path to staying sober or on the road to relapse? Why?

Please refer to the image attached below and answer the following question. Thanks What referrals would you give to her and in what order?

For part B, it is not 4.98 x 10-41. I put it in and it was wrong. It is looking for P1.

Consider the molecule below. HICA H3C Br CBCH3 CH3 How would you characterize the personality of the molecule above? [Select] Would the reactive part of this molecule react with equal probability on the top or bottom face? [Select] Could this molecule undergo a rearragement, and if so, what would it become? [Select] Which carbon atom has a greater partial positive both Ca and Cb have equal am◇ charge? Which atom would make a bond with a nucleophile? Br

Highest concentration of dye Lowest concentration of dye Answer Bank 3.0 mL dye and 3.0 mL water 2.0 mL dye and 6.0 mL water 2.0 mL dye and 0.0 mL water 20 µM dye solution 6.0 mL dye and 2.0 mL water

You're an undercover biological weapons agent who has been given an unknown liquid - you suspect that it is just sugar water (because you drank some by accident - you know you're not supposed to have food or drink in the lab, but you do it all the time, and it tasted sweet - plus you didn't die!) One of the tests you need to run is to see if it contains protein (remember, foreign proteins can cause severe immune responses which can be a powerful biological weapon). You set up 3 test tubes each with 10mL of the following: distilled water, gelatin solution and the unknown. The distilled water is clear, the gelatin solution is clear with a beige tint, and the unknown is clear. You use Biuret's Reagent - a dark blue dye which will turn a liquid sample purple in the presence of protein. 1. When Biuret's Reagen is added to the unknown, predict what color you expect it to become if the unknown is just sugar water: [a] (no change | blue | purple).   2.You included both a positive and negative…

In the phosphate analysis of a wastewater sample, 30.00 mL of the original sample was taken and diluted with 120.00 mL deionized water. The diluted sample was found to have a phosphate content of 25.5 ppm. What is the phosphate content (in ppm) of the original wastewater sample? DENSITY VALUES AT 25°C Ethanol: 0.789 g/mL Water: 0.997 g/ml Acetic Acid: 1.05 g/mL