What is the Highest pH Salt Solution in a 1 Molar Solution?

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SUMMARY

A 1 molar solution of sodium carbonate (Na2CO3) exhibits the highest pH among the given salts. This is due to its ability to produce hydroxide ions (OH-) in solution, making it a strong base. In contrast, sodium nitrate (NaNO3) and ammonium chloride (NH4Cl) yield lower pH levels as they form weak bases or strong acids, respectively. Understanding the strength of conjugate acids and bases is crucial for determining the pH of salt solutions.

PREREQUISITES
  • Understanding of acid-base chemistry
  • Knowledge of salt hydrolysis
  • Familiarity with pH scale and its implications
  • Basic concepts of conjugate acid-base pairs
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  • Research the hydrolysis of sodium carbonate (Na2CO3) in aqueous solutions
  • Learn about the pH of various salt solutions and their classifications
  • Study the properties of conjugate acids and bases in detail
  • Explore the impact of salt concentration on pH levels
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Chemistry students, educators, and professionals interested in acid-base reactions and pH analysis of salt solutions.

Schmidty369
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Q: A 1 molar solution of which of the the following salts has the highest pH?
A. NaNO3
B. Na2CO3
C. NH4CL
D. NaHSO4
E. Na2SO4

I think its a because NO3 would make a strong acid making more OH but I am coufused totally on how to find pH of salts
 
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Highest pH, or lowest pH? Do you mean which is the strongest acid, or which is the weakest?
 
highest pH
 
Schmidty369 said:
Q: A 1 molar solution of which of the the following salts has the highest pH?
A. NaNO3
B. Na2CO3
C. NH4CL
D. NaHSO4
E. Na2SO4

I think its a because NO3 would make a strong acid making more OH but I am coufused totally on how to find pH of salts

A strong acid has a low pH; for example HCl is around pH of 2. A high pH would indicate a base. A strong acid would not have more OH, so your wording is confusing.
 
which one of them is the strongest base?!
 
A strong base has weak conjugate acid ion.

Compare the relative strength of all the conjugate acid ions

Think along this line

Kelvin
 
this might be useful, although I'm sure you have something similar in your own textbook

http://spiepho.sbc.edu/worksheets/Gen_Chem_2/Chp15,pH_Salt_Solutions.doc
 
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