Recent content by mheadlee

We did three trials, all three outcomes were within 10% of each other. Our lowest error was 40% and our highest error was 50%. I am wondering if the actual Van't Hoff value is somewhere between one and three. Three assumes all ions dissociate completely and one assumes that none did. Also - I...

we were using digital thermometers plus minus .1 C

Thanks again - We tried it and cut our error down from about 300% to about 40%. Much better but not good enough. I wonder if it would be better to work backwards from an observed boiling point to a Van't Hoff factor? I need to "brush up" on this stuff a little more.

My calculations were based on 1 mol. That explains why the elevation I am getting is between 3 and 4 times higher. The rest of the error can be attributed to the equipment I am working with. Its like trying to slice an onion with a chain saw. Thanks for your help.

I am trying to determine the Boiling point elevation for a 1 m solution of sodium carbonate. Multiplying 1 m by .512 should give a boiling point elevation of .512 C, but when I measure out a 1 m solution and boil it I get an elevation of 2 C

I am trying to get the calculations and the data to match up in lab. The boiling point elevation predicted by the equation does not match up to the one I am getting by direct measurement. What am I doing wrong?