21. Concentrated solutions ( much more concentrated than over-the-counter medical products ) are even more dangerous because they corrode tissues.22. Nasal glands remove excess salt from seawater consumed by the petrel as a concentrated solution excreted through the nostrils. 23. In particular, at room temperature the concentrated solution with the density of 4.25 g / cm 3 is amber-yellow. 24. In concentrated solution , the additional HF causes the ion pair to dissociate with formation of the hydrogen-bonded hydrogen difluoride ion. 25. However, careful reading of our acetic acid article will indicate that similarly concentrated solutions of ethanoic acid are also hazardous. 26. The less concentrated brine required more time to evaporate and the total yield was less than a more highly concentrated solution . 27. This can be calculated for dilute solutions using the Debye H�ckel equation; for more concentrated solutions other approximations must be used. 28. In some areas, they are spraying buildings with concentrated solutions of the chemical to reduce the risk of disease, Prescott said. 29. A concentrated solution of this strong electrolyte has a lower vapor pressure than that of pure water at the same temperature. 30. It is prepared by treating a concentrated solution of arsenic acid with ammonia, resulting in precipitation of colorless crystals of the trihydrate.
