The ph of a solution prepared by mixing 40.0 ml of 0.125 m mg(oh)2 and 150.0 ml of 0.125 m hcl is

The balanced chemical reaction is:

Mg(OH)2  +  2HCl  -->  MgCl2  +  2H2O

So we can see that 2 moles of HCl reacts for every 1 mole of Mg(OH)2.

moles HCl left = 0.125 M * 0.150 L – (0.125 M * 0.040 L) * 2

moles HCl left = 0.00875 mol

So the concentration of H+ ion is:

[H+] = 0.00875 mol / (0.150 L + 0.040 L)

[H+] = 0.046 M

So the pH is:

pH = - log 0.046

pH = 1.34

girl imma just put my comment here because i need a couple point okurrttt

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock