# of moles
(5g C6H12O6)(1mol C6H12O6/ 180g C6H12O6)
= 0.028 mol of C6H12O6
Your calculations are ok but you didn't finish. After your have delta T you must add to normal boiling point and subtract from normal freezing point. Also, I think you transferred f.p. and b.p. incorrectly from the problem. I don't like to round at each step as I go through a problem; rounding at each step can cause rounding errors at the end. I prefer to just leave those "extra" numbers in the calculator. For example:
(5.0/180)/0.5 x 3.90 = 0.21667 which rounds to two places as 0.22 (if 5.0 is the correct value from your problem then two s.f. is all you can have). Then -0.22+16.6 = ??
(0.028mol/500g CH3COOH)(1000g CH3COOH/1kg)
= 0.056 mol solution
boiling point = 100degreesC+deltaTbp
= 100degreesC+(0.056m)(3.07 C/m)
= 100.173 degrees C
I think the problem quotes normal boiling point as 118.5
freezing point = 0 degreesC-deltaTfp
= 0 degreesC-mKfp
= O degreesC-(0.056m)(3.90C/m)
= -0.218 degrees C
I think the problem quotes normal freezing point as 16.6.
so then would the new points be:
b.p. = 218.67 C
f.p. = 16.38 C ?
Answer this Question
Chemistry - Hi there - I'm going to post the question as written in my book. ...
Math - 8*2sq+7*(4+1)= ? Can someone explain to me what to after the parenthesis...
critical thinking - Can some please help with these questions. I just want to ...
Chemistry - can anyone check and see if i balanced the equation for the ...
Algebra - Could someone correct my answers and help with the other problems? 1. ...
Chem - I have to convert inches to 250 cm.My book states the expression to ...
math - Is (5,2) a solution of 4x-2y=-6 I said no, am I right? I am working on ...
algebra - Is (5,2) a solution of 4x-2y=-6 I said no, am I right? I am working on...
Chemistry - Please check this over and see of they are right...if they are not ...
Calculus - I finished the first question with no problem. It was something like...