Which of the following solutes will lower the freezing point of water the most? the molecular compound sucrose (c12h22o11) the ionic compound magnesium sulfate (mgso4) the ionic compound lithium chloride (licl) the ionic compound calcium fluoride (caf2)

the ionic compound calcium fluoride

Explanation:

= change in freezing point

i = Van'T Hoff factor

= freezing point constant

m = molality

1. For , i= 1 as it is a non electrolyte and does not dissociate.

2. For , i= 2 as it is a electrolyte and dissociate to give 2 ions.

3. For , i= 2 as it is a electrolyte and dissociate to give 2 ions.

4. For , i= 3 as it is a electrolyte and dissociate to give 3 ions.

Thus as vant hoff factor is highest factor for and the freezing point will be lowest.

just did the assignment and the answer was #1 +2 n

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.