van't Hoff factor
van't Hoff factor
van't Hoff factor
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
The van’t <strong>Hoff</strong> <strong>factor</strong><br />
This <strong>factor</strong> of 2 for NaCl is the (approximate) van’t <strong>Hoff</strong><br />
<strong>factor</strong>. This <strong>factor</strong>, given the symbol “i ”, is greater than 1 for<br />
all strong electrolytes.<br />
i for NaCl = 2 Why? Because NaCl Na + + Cl G<br />
Consider other electrolytes:<br />
i for HCl = 2 HCl is a strong acid: HCl + H 2 O ! H 3 O + + ClG<br />
i for NaOH = 2 NaOH is strong base: NaOH Na + + OH G<br />
i for Ca(OH) 2 = 3 a strong base: Ca(OH) 2 Ca 2+ + 2OHG<br />
i for H 2 SO 4 = 2! 1st H is strong: H 2 SO 4 +H 2 O ! HSO 4 G +H 3 O +<br />
H 2 O<br />
H 2 O<br />
H 2 O<br />
H 2 O<br />
i for FeCl 3 = 4 all salts are strong: FeCl 3 Fe 3+<br />
+ 3Cl G
Change language