Recognizing the problem

If the quantities of both reactants are in exactly the correct ratio for the balanced chemical equation, then either reactant may be used to calculate the quantity of product produced. (If on a quiz or examination it is obvious that they are in the correct ratio, you should state that they are so that your instructor will understand that you recognize the problem to be a limiting quantities problem.)... 

Since the late 1960 s problems related to ccxitaminaticxi of fish and shellfish have been recognized. The problem compounds share one characteristic biopersistence. Compounds such as various salts of lead or mercury have contaminated shellfish or fish living in either fresh or salt water. Chlorinated compounds such as DDT, PCB and dioxins have been found in fish living in fresh water rivers and lakes and to some extent in the Baltic and Mediterranean Seas (25). 

Eerily, our scientific community ignores the terrible > 135-year-old foundation errors in classical electromagnetics and assures us that this is the best that electrodynamics can do. In fact, the scientific community has not yet even recognized the problem, much less the solution. As Bunge [40] so poignantly stated in 1967 it is not usually acknowledged that electrodynamics, both classical and quantal, are in a sad state. ... 

It is particularly difficult to control the dumping of tires in sparsely populated areas, and special efforts may be needed to recognize the problems before they get out of hand. Waste tire dumps may be started on abandoned land and may accumulate thousands of tires before authorities become aware and are able to take action. Informed citizens and local police may be particularly helpful in spotting nascent illegal tire dumps. 

In 1969 Wilhoit picked up where Burton had left off and compiled the standard thermodynamic properties AfG° and A H° of species involved in biochemical reactions. He recognized the problems involved in including species... 

E. Loftus, op. cit. (note 22) H. Grabitz, NS-Prozesse..., op. cit. (note 194), pp. 64, 67, also recognizes the problem that results from the Jewish witnesses role as victims. 

Ito et al.19 were the first to recognize the problems of solubility of platinum in hot phosphoric acid and a more detailed study was carried out by Bindra et al. They found that in hot phosphoric acid, an equilibrium of the type ... 

Although relatively simple analytical methods are sometimes useful for formulation analysis, it is important to recognize the problems inherent in non-specific methods and also the need to detect and measure potentially harmful contaminants in technical pesticides or formulations. 

FMC textile experts, recognizing the problem, felt that sodium tripolyphosphate (STPP) could be of value as a textile scouring booster. Sodium tripolyphosphate has long been the builder of choice in laundry detergents where it is used to tie up and sequester hard water ions, but it has seen limited use in the textile industry. 

If you have a serious disease problem in your garden that you cannot diagnose, you may want to turn to private consultants or to government sources, such as the Cooperative Extension Service, for help. Your local extension agent may immediately recognize the problem. If not, he or she can serve as a contact with specialists from your state university. 

Preparation of the fruit. Since the early research of Webb et al. (33) several workers have recognized the problem of artefact formation during work-up of grapes. Accordingly, these investigators have employed additives such as NaF and ascorbic acid or SO. and sorbic acid to minimize microbial and oxidative degradation of the juice (2,10,34). 

Some recognized the problems of the automobile as the smell of unburned gasoline grew as early as 1905. Gasoline caused noticeable pollution and its status as a nonrenewable resource was questioned. Engineers and industry analysts began to wonder if an adequate supply would remain available with the growing popularity of the automobile. 

Because we are asked to convert from the amount of one substance in a chemical reaction to amount of another substance in the reaction, we recognize the problem as an equation stoichiometry problem. Our general steps are... 

Fluoropolymers are more permeable to fluids than other polymeric materials. However, the permeation rates of different grades of fluoropol5miers are not that different. Most of the data that are currently available are based on thin films and must be carefully used. Permeation is also not a very clearly understood phenomenon. As a result the end user has to recognize the problem and manage it. Table 4.20 contains very useful rules-of-thumb when it comes to permeation through fluoropolymers... 

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