What is the
freezing point of water made by dissolving 16.42 g of sodium
chloride in...
What is the
freezing point of water made by dissolving 16.42 g of sodium
chloride in 93.29 g of water? The freezing-point depression
constant of water is 1.86 oC/m.
What is the freezing point of water made by dissolving 16.46 g
of sodium chloride in 88.86 g of water? The freezing-point
depression constant of water is 1.86 oC/m.
A solution is made by dissolving 10.0 g of sodium chloride in
110.5 g of water at 25oC. The density of the solution is 1.021
g/mL
1.What is the osmotic pressure of this solution?
2.What is the boiling point of this solution?
3.What is the freezing point of this solution?
What is the pH of a buffer solution made by dissolving 10 g of
sodium acetate in 200 ml of 1M acetic acid? The Ka for acetic acid
id 1.7*10-5.
B. Calculate the pH of the solution if 10 ml of 0.100M HCl is
added to the solution.
C. What will the pH be if 5.00 ml of 0.150M NaOH was added to
solution in B?
D. Write the equation when an acid and a base are added to the...
A
solution is made by a dissolving 16.8 g of sodium fluoride , NaF ,
in enough water to make exactly 500.ml of solution . Calculate the
molarity of each species: NaF, Na+ and F-.
What are the freezing point and boiling point of a solution
prepared by dissolving 18.6g of CaCl2 in 200.0g of
water? (kf = -1.86�/m and kb= 0.512�/m)?
A solution is made by dissolving 45.5 g of sodium phosphate in
265 g of ethanol. The resulting solution has a volume of 225 mL.
Using the above information, values found in Table 14.6, a vapor
pressure of 5.87×10−2 atm at 20 oC, and the theoretical van’t Hoff
factor, determine the following for the resulting solution:
A. M of Na3PO4
B. m of Na3PO4
C. Freezing point in oC
D. Boiling point in oC
E. Osmatic pressure at 20 oC...
what is the expected boiling point of a solution made by dissolving 15.65g of glycerol in 49.00mL of water? the boiling point elevation constant for water if 0.512 degrees C/ molal.
A buffer is made by dissolving 4.800 g of sodium formate
(NaCHO2) in 100.00 mL of a 0.30 M solution of formic acid (HCHO2).
The Ka of formic acid is 1.8 x 10-4. a) What is the pH of this
buffer? b) Write two chemical equations showing how this buffer
neutralizes added acid and added base. c) What mass of solid NaOH
can be added to the solution before the pH rises above 4.60?