Chemistry Homework Help

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22 solutions

Polyprotic Acid

#### Q. Calculate the [H+] in 1.0 M solution of Na2CO3 (for H2CO3, Ka1=4.3x10^-7; Ka2=5.6x10^-11).

Solved • Oct 21, 2019

Polyprotic Acid

#### Q. Calculate the concentrations of all the species in a 0.369 M Na2CO3 solution. For H2CO3, Ka1 = 4.2 x 10^-7 and Ka2 = 4.8 x 10^-11. [H2CO3] = ___ M [H+] = ___ M

Solved • Oct 16, 2019

Polyprotic Acid

#### Q. Calculate the concentrations of all the species in a 0.369 M Na2CO3 solution. For H2CO3, Ka1 = 4.2 x 10^-7 and Ka2 = 4.8 x 10^-11. [HCO3^-] = ___ M [OH-] = ___ M

Solved • Oct 16, 2019

Polyprotic Acid

#### Q. Calculate the concentrations of all the species in a 0.369 M Na2CO3 solution. For H2CO3, Ka1 = 4.2 x 10^-7 and Ka2 = 4.8 x 10^-11. [CO3^2-] = ___ M [Na+] = ___ M

Solved • Oct 16, 2019

Polyprotic Acid

#### Q. Sulfuric acid (H2SO4) is a polyprotic acid. Write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when dissolved in water.

Solved • Oct 14, 2019

Polyprotic Acid

#### Q. At 25 degrees C phosphoric acid, H3PO4, has the following equilibrium constants: What is the pH of a solution of 0.300 MKH2PO4, potassium dihydrogen phosphate? Express your answer numerically to the hundredths place.

Solved • Oct 11, 2019

Polyprotic Acid

#### Q. At 25 degrees C phosphoric acid, H3PO4, has the following equilibrium constants: What is the pH of a solution of 0.650 MK2HPO4, potassium hydrogen phosphate? Express your answer numerically to the hundredths place.

Solved • Oct 11, 2019