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Describe DDT and describe the advantages and disadvantages of DDT.
1. Name of the chemical-DDT-Dichlorodiphenyl Trichloroethane2. What is useful?3. Why is it harmful?4. Connect to health science
If you eat a 48 g serving rice every fourth day and you weigh 75 kg, what is your dose of inorganic arsenic (in µg per kg body weight per day) if the rice contains 386 µg kg -1 of total arsenic, 45% of which is inorganic ...
Hello, need help with the following chem questions. Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2Al(s)+3Cl2(g)→2AlCl3(s) You are given 24.0 g of aluminum and 29.0 g of chlori ...
Potassium and sodium chloride are similar in charge and they both have the same anion. When comparing sodium chloride (36 g / 100 mL at 0 oC) and potassium chloride, which has a higher solubility at 0 oC?
How many moles of carbon dioxide are produced when 19.3 mol of propane gas is burned in excess oxygen? C3H8+5O2=3CO2+4H2O? Please show work.
Write a reserch paper on Gas chromatography. This is a 10 pages research paper that should include an introduction on chromatography, principles of separation, type of columns, resolution, detection methods and applicati ...
Carbonic acid (H2CO3) is a diprotic acid withKa1 = 4.2×10-7and Ka2 = 4.8×10-11. Theion product for water is Kw = 1.0 × 10-14. What is the carbonate ion concentration[CO2-3] in a 0.037 M carbonic acid solution?
Assignment Part 1 1. The pH scale is generally considered as a scale from 1 to 14. State a value of pH considered to be: a. acidic b. basic c. neutral 2. The acid in our stomach is used to break down food proteins and ki ...
For this question imagine that sea water is a 3.5 mass % solution of NaCl with a density of 1.00g/mL. Assume full dissociation of the NaCl. a) Calculate the freezing point of sea water.Briefly explain why it is not 0 (de ...
How much water must be added to a 50.0 ml solution of 0.60 M HNO 3 to produce a 0.40 M solution of HNO 3 ?
Explain the geochemical differences between acidic mine waters and basic mine waters.
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