an unknown salt is either NaCN,NaC2H3O2, NaF, NaCl, or NaOCl. when 0.100 molar of the salt is dissolved in 1.00 L of solution, the ph of the solution is 8.07. what is the identity of the salt? where do I start? How do I solve it, cuz im not gettign right answer.
March 17, 2015
R(CO2H)2+2NaOH-->R(CO2Na)2+2H2O Mu(NaOH)=44,81*10^(-3)*0,0953=4,27*10^ mol Mu(acid)=4,27*10^(-3):2=0,002135 mol If R=aliphatic saturated rest and there are not other substituents in C-chain,then R=CxH2x and: 0,2178=0,002135(90+12x+2)=0,1964+0,025 x=(0,2178-0,...
November 2, 2010
(a) Assuming that only gravity is acting on it, how far does an electron have to be from a proton so that its acceleration is the same as that of a freely falling object at the earth's surface? (b) Suppose the earth were made only of protons but had the same size and mass ...
July 29, 2010