If the solubility of a gas in water is 5.0 g/l when the pressure of the gas above the water is 2.5 atm, what is the pressure of the gas above the water when the solubility of the gas is 1.0 g/l?

It is nearly an direct relationship, 

p1/P2=solubiity1/solubility2 

P1=2*1/5= .4 atm

Just took the quiz on edgenuity and the correct answer is "c.  4.54 x  10–12  j"

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.