A scuba diver is experiencing a pressure of 5.0 atm. To what depth in feet has he dived? Careful, remember that just by being on the surface of the sea he is at 1.0 atm! It might be useful to remember that: the density of mercury is 13.6 g/ml, the density of water is 1.00 g/ml and that there are 3.28 ft in one meter.

a) 54.4
b) 169
c) 136
d) 41.3
e) 51.5

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 a metal replacement reaction

What type of matter is made of only one kind of atom