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Testing the run off water of PNA (polynuclear aromatic compounds). Which analytical method you will use in each case? Explain your choice
Given that vinegar is 5% acetic acid by weight, estimate the percentage of vinegar in the foods. Assume that vinegar is 1.05 g/ml.
The boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2°C. What is the molar mass of the solute?
What are the advantages and disadvantages of animal studies and epidemiological studies for establishing dose-response relationships?
In each case indicate whether the reaction is spontaneous at 298 K under standard conditions. P4O10(s) + 16H2(g) -> 4PH3(g) + 10H2O(g) Gibbs free energy for P4O10(s) is -2675.2 kJ/mol Gibbs free energy for PH3(g) is 13.4 kJ/mol Gibbs free energy f..
One of the students in lab decided to use two fractionating columns (one on top of the other) instead of just one. How would this: a) affect the separation between hexane and heptane?
If the ultimate BOD of waste is 24mg/l and the BOD5 of that waste is 16mg/l, how much oxygen per liter would the waste consume in 7 days
what is the ph of a buffer prepared by adding 180 ml of 0.100 m naoh to 200 ml of 0.100 m acetic acid? ka for ch3cooh
The second order rate constant for a reaction is 4.2300 x 102 M-1s-1. If the initial reagent concentration is 0.93800 mol/L, determine the time (in seconds) required for the reagent concentration to reach 0.21800 mol/L.
Assume a specific heat of 4.18 J/(g·°C) for the solution, an initial temperature of 25.0°C, and no heat transfer between the cold pack and the environment
Consider the reaction below. If you start with 7.00 moles of C3H8 (propane) and 7.00 moles of O2, how many moles of carbon dioxide can be produced. C3H8(g) + 5O2(g) 3CO2(g) + 4H2O(g)
If 29.7 mL of 0.0205 M KOH us required to completely neutralize 25.0 mL of a HC2H30 solution. What is the molarity of the acetic acid solution
determine how many pounds a citizen would have to weigh in order to have ice melt beneath his/her ice skates. Do a bit of research and find out the area if cibtact betweeb a typical ice skating blade and the ice surface
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