Thanks for this video. I have a question. How do I calculate the pH of different salt waters (KCl, NaCl, MgCl2, and CaCl2) at different pressure, temperature, and molality? I have need experimental data, or correlation or general formula.
Hi Mohamad, the salts you gave will all be neutral because their ions are associated with either a strong acid or strong base. If doing experimentally, just use a pH probe or pH paper. I hope that helps. Thanks!
@@mohamadrezaarab7541 I am not completely sure I understand the question. I assume it just wants the concentration of ions. Notice the ratio of Mg to MgCl2, 1:1. The ratio of Cl to MgCl2 is 2 Cl:1 MgCl2. Take the concentration of MgCl2 and that is the same concentration of Mg ion. The concentration of Cl ion is double the concentration of MgCl2. I hope that helps! Thanks!
Hi Mia, just the Na+ ion is neutral. If it reacts with water it just dissociates again to float as Na+ in the water. Na+ cannot react with water to change the pH. OH- absolutely changes the pH. I hope that helps. Thanks!
Thanks for this video. I have a question. How do I calculate the pH of different salt waters (KCl, NaCl, MgCl2, and CaCl2) at different pressure, temperature, and molality? I have need experimental data, or correlation or general formula.
Hi Mohamad, the salts you gave will all be neutral because their ions are associated with either a strong acid or strong base. If doing experimentally, just use a pH probe or pH paper. I hope that helps. Thanks!
@@OldSchoolChemistry
Thank you. That means the salt water (The salts I mentioned) at any pressure and temperature is neutral in water?
@@mohamadrezaarab7541 Yes:)
@@OldSchoolChemistry Thanks
I have another question. How do I calculate the concertation of Mg and Cl ion of 2 mol/kgw of MgCl2?
@@mohamadrezaarab7541 I am not completely sure I understand the question. I assume it just wants the concentration of ions. Notice the ratio of Mg to MgCl2, 1:1. The ratio of Cl to MgCl2 is 2 Cl:1 MgCl2. Take the concentration of MgCl2 and that is the same concentration of Mg ion. The concentration of Cl ion is double the concentration of MgCl2. I hope that helps! Thanks!
why would NaOH be nuetral if it’s a strong base
Hi Mia, just the Na+ ion is neutral. If it reacts with water it just dissociates again to float as Na+ in the water. Na+ cannot react with water to change the pH. OH- absolutely changes the pH. I hope that helps. Thanks!
thank you so much!!
@@OldSchoolChemistry
thank you so much !
Hi Rose, you are very welcome. :)
thanks a lot mam...
Hi Shardul, you’re welcome. I hope your class goes well!!
Great lessons..thx alot
I love you so much 🧶