X-ray crystallographic studies show that elemental tungsten (W) exists in a body-centered cubic crystal. The length of the sides for its crystalline unit cell was found to be 3.1652 Angstroms. The wavelength of x-ray radiation is 1.5406 Angstroms.

Calculate the volume of the unit cell, in cm.

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.

I’m an electrically neutral atomic any element, there are equal numbers of

What four properties do all waves have in common