Ions Reacting With Water (To determine acidic, basic and neutral salts) (1 Viewer)

[unano]

hey guys,
how r u supposed to tell whether a particular ion will react with water to form either OH- or H30+ when reacted with water?
e.g. how r u supposed to determine whether Mg 2+ will react with water.

 

[fullonoob]

here ya go read up
Water Conductivity and Dissolved Gases

 

[flaminwaffle]

GENERALLY speaking,

strong acid + strong base --> neutral salt + water

weak acid + weak base --> neutral salt + water

s. acid + w. base --> acidic salt + water

w. acid + s. base --> basic salt + water

 

[fullonoob]

GENERALLY speaking,

strong acid + strong base --> neutral salt + water

weak acid + weak base --> neutral salt + water

s. acid + w. base --> acidic salt + water

w. acid + s. base --> acidic salt + water

<TABLE border=2><TBODY><TR><TH>Acid</TH><TH>Base</TH><TH>Salt pH</TH></TR><TR><TD>strong</TD><TD>strong</TD><TD>pH = 7</TD><TR><TD>weak</TD><TD>strong</TD><TD>pH > 7</TD></TR><TR><TD>strong</TD><TD>weak</TD><TD>pH < 7</TD></TR><TR><TD>weak</TD><TD>weak</TD><TD>depends on which is stronger</TD></TR></TBODY></TABLE>
last equation is more basic than acidic

 

[flaminwaffle]

<table border="2"><tbody><tr><th>Acid</th><th>Base</th><th>Salt pH</th></tr><tr><td>strong</td><td>strong</td><td>pH = 7</td></tr><tr><td>weak</td><td>strong</td><td>pH > 7</td></tr><tr><td>strong</td><td>weak</td><td>pH < 7</td></tr><tr><td>weak</td><td>weak</td><td>depends on which is stronger</td></tr></tbody></table>
last equation is more basic than acidic

Oops, thanks for the correction.

 

[unano]

thx everybody.