Recent content by Sayantan21

So how will I know which will resist the pH better? Both are same buffers, with same Pka value

Here I used Henderson Hesselbach equation in both the cases , I.e pH= pKa + log( [(PO4)3-]/ [H3PO4]) here pKa of phosphoric acid is 2.16 but the problem Is in both the cases the log part is same and Pka is also same so both will cancel out, and how can we solve? It is confusing.

Can you please tell me your way of solving?

dp/dT = ΔS /ΔV dp/dT = ΔS /ΔV (P2-P1)/(T2-T1) = ΔS/(M/d1-M/d2); where d1 and d2 are densities of gray tin and white tin, M is equal to molecular weight of tin. P2 = 100 atm ; P1= 1atm T2=? T1= 273+ 18 =291K ; (100-1)/(T2-291) = 8.811/ (118.71/5.75 - 118.71/ 7.28)

Summary: The transition Sn(s, gray) ⇌ Sn(s, white) is in equilibrium at 18°C and 1 atm pressure. If ΔS = 8.811K mol for the transition at 18°C and if the densities are 5.75 g/cm3 for gray tin and 7.28 g/cm3 for white tin, calculate the transition temperature under 100 atm pressure The...