Abstract
Aqueous solutions of zinc acetate of different concentrations have been studied in respect of their ultrasonic and other physical properties at various temperatures. It is noticed that in case of zinc acetate the ultrasonic absorption coefficient which was earlier found to be increasing with increase in temperature at a frequency of 20 Mc/s, is found to have a peak in the absorption Vs temperature curve at a lower frequency of 8 Mc/s. With decreasing concentrations the peak loses sharpness and ultimately at very low concentrations there is a reversal in the temperature coefficient of absorption which now decreases with the rise in temperature. The results have been discussed along with observations in aqueous solutions of zinc sulphate and acetic acid.