The mole fraction of urea (MW = 60.0 g/mol) in a solution ...

[NClaborn]

The mole fraction of urea (MW = 60.0 g/mol) in a solution prepared by dissolving 16 g of urea in 39 g of H2O is ________.
 
  A) 0.58
  B) 0.37
  C) 0.13
  D) 0.11
  E) 9.1

Question 2

A complex of correctly written formula Pt(NH3)3BrBr  H2O has which set of ligands in its inner coordination sphere?
 
  A) 3 NH3
  B) 3 NH3 and 2 Br-
  C) 3 NH3 and 1 Br-
  D) 3 NH3, 1 Br-, and 1 H2O
  E) 3 NH3, 2 Br-, and 1 H2O

[tuwy]

Answer to Question 1

D

Answer to Question 2

C

[NClaborn]

Thanks for the timely response, appreciate it

[xiazhe]

TYSM