Asample of solid ammonium chloride was placed into an evacuated rigid container and then heated so that it decomposed to ammonia gas and hydrogen chloride gas. after heating the total pressure in the container was found to be 4.4 atm. calculate kp at this temperature for the decomposition reaction

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Particles vibrate in a rigid structure and do not move relative to their neighbors.