using the evaporating method, the solubility of potassium nitrate was determined in various mixtures containing water and ethanol at 25°c. the results show that the solubility of kno3 decreases with increasing the mass percent of ethanol in the mixtures. this trend is along with decreasing the dielectric constant of water+ethanol mixtures. moreover, it can be concluded that the totqal solubilit...

the matter of meaning in place, is one of the main qualities of human life. people consciously or unconsciously looking for meanings in places. the importance of finding the meaning of place is that, understanding the meaning will lead to “act” in place. finding the place friendly, or finding it insecure will lead to act differently. now the question is that, is the meaning of place, something ...