ka1=7.5x10^-4
ka2=1.7x10^-5
ka3=4.0x10^-7
since ka1>ka2,ka2 Ka2 the primary source of H3O+ in the solution will be the 1st ionization so we use it for the calculation
H3C6H5O7 +H2O<-------> H2C6H5O7- + H3O+
I 0.145M 0 0
c -x x x
E 0.145-x x x
7.5x10^-4=x2/0.145-x (neglecting x in the denominator)
x2=1.08x10^-4
x=0.01039=[H3O+]=[H2C6H5O7-]
pH=-log(0.01039)=1.98
Calculate the [H3O+] and pH of each polyprotic acid solution. (See the appendix.) (a) 0.272 M H2CO3 [H3O+] M pH (b) 0.133 M H3C6H5O7 [H3O+] M pH
Part A Calculate the [H3O+] of the following polyprotic acid solution: 0.115M H2CO3. Part B Calculate the pH of this solution. Part C Calculate the [H3O+]] of the following polyprotic acid solution: 0.145M H3C6H5O7. Part D Calculate the pH of this solution.
1. Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.400 M H3PO4. Calculate the pH of this solution. 2. Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.400 M H2C2O4.
Calculate the [H3O+]and pH of the following polyprotic acid solution: 0.300 M H2C2O4. Part D Calculate the pH of this solution.
Part A= Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.300 M H2C2O4. Part B= Calculate the pH of this solution.
Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.350 M H2C2O4.
Part A= Calculate the [H3O+] of the following polyprotic acid solution: 0.350 M H3PO4. Part B= Calculate the pH of this solution. Part C= Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.300 M H2C2O4. Part D= Calculate the pH of this solution.
What is a polyprotic acid? 2. How many moles of H3O + are present in 50 mL of 0.3 M H2SO4? 4. If 20.20 mL of 0.122 M NaOH are required to reach the first equivalence point of a solution of citric acid (H3C6H5O7), how many mL of NaOH are required to completely neutralize this solution? 5. If the pH at one-half of the neutralization points of a dibasic acid is 3.52 and 6.31 respectively, what are the values for...
Calculate the [H3O+] of the following polyprotic acid solution: 0.310 MH3PO4 .Express your answer using two significant figures. Part B Calculate the pH of this solution. Express your answer using one decimal place.
Calculate the pH and concentration of species present in a polyprotic acid solution.For a 3.44×10-3 M solution ofH2CO3, calculate both the pH and the CO32- ion concentration.H2CO3 + H2O → H3O+ +HCO3-Ka1 = 4.2×10-7HCO3- + H2O → H3O+ +CO32-Ka2 = 4.8×10-11pH =[CO32-] =