The concentration of sodium chloride in an aqueous solution that is 2.23 M and that has a density of
1.01 g/mL is __ % by mass.
CHemistry - bobpursley, Sunday, September 26, 2010 at 3:59pm
concentration by mass..
mass NaCl=2.23*formulamassNaCl (per liter
CHemistry - JBS, Sunday, September 26, 2010 at 4:10pm
2.23 x 58.443 = 130.33
mass is 1010g
but 12.9 is the right answer...
CHemistry - DrBob222, Sunday, September 26, 2010 at 4:51pm
Look at Bob P's work. mass solution is 1010g, (you added 1010+130.33=1140.33 which isn't correct).
130.33/1010 = 12.9%
CHemistry - JBS, Sunday, September 26, 2010 at 5:28pm
sorry, im used to adding together once you convert to grams...