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A certain pesticide is fatal to fish fingerlings at a level of 0.50 parts per million in water. A leaking metal can containing 5.00 kg of the pesticide was dumped into a stream with flow of 10.0 L/sec moving at 1 km/hr. The container leaked pesticide at a constant rate of 5 mg/sec. For what distance (in km) downstream was the water contaminated by fatal levels of the pesticide by the time the container was empty?
What is the density of an object with a weight of 32 grams if it has a volume of 4 cubic centimeters
Suppose you prepared benzil by the oxidation of benzoin, describe how you could use TLC (thin layer chromatography) to decide when the reaction is complete.
which is an aqueous solution of acetic acid, HC2H3O2 , requires 24.5 mL of 0.450 M NaOH to reach the endpoint in a titration. What is the molarity of the acetic acid solution
A sample of 0.50 g of anhydrous CoCl2(subscript) is dissolved in 25.0 mL of water. Predict the absorbance at 510 nm for this solution, determining using the procedure described in this experiment.
how many liters of the antifreeze ethylene glycol c2h6o2 would you add to a car radiator containing 6.50 l of water if
the partial pressure of o2 in the lungs ranges from 25 mmhg to 40 mmhg. what concentration of o2 in grams per liter
purified a new protein and find that it contains 0.154 percent Mn. Assuming that there are three atoms of manganese per molecule of protein, what is the molar mass of the protein
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA-, A2-) at pH 8.44
Diagnostic reactions are those used in medicine to figure out what may be causing a problem. Can you go into detail concerning one such test you or someone you know has undergone? Share one balanced chemical equation related to this, and be sure t..
A compound was analyzed and found to be composed of 75% cardbon and 25% hydrogen. What is the Empirical formula of this compund
Calculate the potential of a zinc electrode immersed in 0.0100M in Zn(NH3)4 2+ and 0.25M in NH3 B4 for Zn(NH3)4 2+ is 7.76*10^8
Determine the concentration of the original Na 2 C 2 O 4 solution and disodium oxalate in the presence of excess acid.
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