Why phosphorus based heteropoly acids are more acidic than silicon based heteropoly acid?

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How to make sure DNA ladder separate well in gel electrophoresis?

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How does alpha and beta spin affects our complex molecular geometry?

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Why results of ROS flurescence are negative as there was no bacteria within?

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Why aren't most metal oxides insoluble in water?

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Why chloride turns into chlorine gas in a Downs cell?

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How to calculate the molar proportions of the oxides from the XRF analyses?

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Addition of EDTA during the synthesis of copper nanoparticles to prevent it from being oxidized?

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Saad Zahraw Sekhi

you can see the following links:

Article Acidity of Keggin-Type Heteropolycompounds Evaluated by Cata...

Azeez Abdullah Barzinjy

Shen, Lingqin, Hengbo Yin, Aili Wang, Yonghai Feng, Yutang Shen, Zhanao Wu, and Tingshun Jiang. "Liquid phase dehydration of glycerol to acrolein catalyzed by silicotungstic, phosphotungstic, and phosphomolybdic acids." Chemical Engineering Journal 180 (2012): 277-283.

Mohammad Kooti

I was thinking of the higher electronegativity of phosphorous compared to silicon. Perhaps this might be the reason for the higher acidity of phosphorous heteropolyacids.