What is the difference between ph3 and ph4

This is because water can break down into these two ions:. This equation shows that the more hydrogen ions a solution has, the fewer hydroxide ions it must have. From there, the pH can be found by:. This simulation can help explore how pH changes as liquids mix. To explore pH further please see the Chemistry LibreTexts page. Fossil Fuels. Nuclear Fuels. Density 1. Ignition K K temperature 5. Stability Less stable at ordi- More stable at ordi — nary temperature. Chemical Very reactive Less reactive reactivity.

List the uses of neon and argon gases. Which one of the following does not exist? NeF 2. Justify the placement of O, S, Se, Te and Po in the same group of the periodic table in terms of electronic configuraton, oxidation state and hydride formation. Discuss the general characteristics of Group 15 elements with reference to their electronic configuration, oxidation state, atomic size, ionization enthalpy and electronegativity.

Copy Link. Nitrogen is highly electronegative as compared to phosphorus. This causes a greater attraction of electrons towards nitrogen in NH 3 than towards phosphorus in PH 3. Hence, the extent of hydrogen bonding in PH 3 is very less as compared to NH 3.

The hybridisation in PH3 molecule seems like sp3 according to its Lewis structure and Steric number rule. But in reality, PH3 molecule has no hybridisation. This is because it a Drago molecule. Drago molecules do not have any hybridisation and have the least bond angles. Henry's law constant for CO 2 in water is 1.

Calculate the quantity of CO 2 in mL of soda water when packed under 2. If the density of solution is 1. The vapour pressure of pure liquids A and B are and mm Hg respectively, at K. Find out the composition of the liquid mixture if total vapour pressure is mm Hg. Also find the composition of the vapour phase. H 2 S, a toxic gas with rotten egg like smell, is used for the qualitative analysis.

Discuss briefly giving an example in each case the role of coordination compounds in:. In the following pairs of halogen compounds, which compound undergoes faster S N 1 reaction? Q1 Why are pentahalides more covalent than trihalides? Q2 Why is BiH3 the strongest reducing agent amongst all the hydrides of Group 15 elements? Q3 Why is N2 less reactive at room temperature?

Q4 Mention the conditions required to maximise the yield of ammonia.