Formula for potassium Phosphide

Answer 1

There are two common commercially available forms of potassium borate:

1) Potassium tetraborate has the structural formula K2[B4O5(OH)4].2H2O. The formula for potassium tetraborate is often written as K2B4O7.xH2O or as the oxide form, K2O.2B2O3.8H2O. This compound can be regarded as the potassium analogue of the sodium tetraborate commonly called borax.

2) Potassium pentaborate has the structural formula K[B5O6(OH)4].2H2O. The formula for potassium pentaborate is alternatively written as KB5O8.4H2O (or K2B10O16.8H2O) or in the oxide form as K2O.5B2O3.8H2O.

A number of other crystalline potassium borates exit, including potassium metaborates, K[B(OH)4].xH2O (or KBO2.xH2O).

These common forms of potassium borate have anhydrous counterparts prepared by fusing the hydrated borates.

Answer 2

I assume that you mean potassium hydrogen phosphate. The "bi" prefix is often used to denote a hydrogen atom {sodium bicarbonate = Na(HCO3)} but not usually before phosphate groups. In this case the potassium ion (K+) is charged +1, while the hydrogen and phosphate group(HPO4) has a total charge of -2. To neutralize the negative charge on the anion (negatively charged ion) you need to use two cations (positively charged ion) of potassium (K+ x 2 = +2). The formula would then be K2(HPO4).

Answer 3

there is no phosphite (i think)! do you mean PO2? if yes, then it is called hypophosphate.. the formula will be KPO2

Answer 4

Potassium phosphide is K3P

Answer 5

K2HPO3