- #1
WK95
- 139
- 1
Homework Statement
An aqueous solution contains 0.84 g/L of an organic detergent. The osmotic pressure of this solution is 54.4 torr, at 25°C. What is the molar mass (in g/mol) of this detergent?
Homework Equations
##pi=MRT##
##R=0.08206L*atm/(mol*K)##
The Attempt at a Solution
##pi=MRT##
##M=pi/(RT)##
##M=(54.4 torr * 1 atm/760 torr)/(0.08206L*atm/(mol*K))(298.15 K)##
This is wrong but I;m not sure why and how to get the right asnwer.
Homework Statement
What is the equilibrium constant expression for the following reaction:
PtCl42−(aq)↔Pt2+(aq) + 4Cl−(aq)
Choose from the list below and enter the letters alphabetical order. (e.g. For an equilibrium constant of [Cl-]4eq[Pt2+]eq enter AH.)
A) [Pt2+]eq E) [Cl-]-1eq I) [PtCl42-]4eq
B) [Cl-]eq F) [PtCl42-]-1eq J) [Pt2+]-4eq
C) [PtCl42-]eq G) [Pt2+]4eq K) [Cl-]-4eq
D) [Pt2+]-1eq H) [Cl-]4eq L) [PtCl42-]-4eq