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  • Bonding in the phosphate ion - Chemistry Stack Exchange
    I'm looking for an explanation of the bonding in the phosphate (PO 43−) ion: (Image courtesy of Wikipedia) Phosphorus (15 P) - being the fifteenth element - has fifteen electrons, five valence electrons and the following electron configuration: 1s 2 2s 2 2p 6 3s 2 3p 3 This being so, by what means does it form its bonds? Naively, one might expect it to form 3 single covalent bonds and be
  • How can Phosphate be charged at -3? - Chemistry Stack Exchange
    I am studying chemistry in High School and I am studying my ions (Because I failed too in the beginning, oops) and I have a question on this reasoning: In Phosphate (PO4), it has a charge of -3 The
  • Difference in total phosphate and total phosphorus of biomass
    Are they essentially the same? Note: I know that any measurement of phosphate can be expressed both as PO4-P or PO4 This is simply a matter of expression I am interested in the difference in what is actually measured when someone would take about total phosphate or total phosphorus
  • Reading Salifert PO4 Test - Nano-Reef Community
    That would put something around 03 ppm PO4 to 5ppm NO3 at a good ratio As long as it looks closer to 03ppm than adjacent levels, it is good If you aren’t suddenly having issues from elevated PO4, which I’d imagine you would have less trouble differentiating colors from those levels, the exact reading isn’t critical
  • Combating low nutrients (and Dinos!) - Nano-Reef Community
    Hey all, I've been dealing with low nutrients in my 10 gallon tank for a few months now - NO3: 0 (Salifert), PO4: 0 - 0 003(Hanna Phosphorus ULR) Corals look quite pale overall Stocking: 1 firefish, 1 tailspot blenny, 1 emerald crab, 4 hermits For a while, I would feed frozen twice a day, alon
  • Dosing Nitrate Nitrogen on purpose? - Nano-Reef Community
    The nitrate dosing experiment worked in showing that adding nitrate, where nitrate is 0 and phosphate is higher, while carbon dosing, will reduce phosphate I don't know if nitrate dosing is especially good for the overall health of the tank though it just seems to reduce po4, where no3 is limited
  • Correct reaction for formation of magnesium pyrophosphate
    I found the following reaction for formation of magnesium pyrophosphate: $$\ce {H2PO4 + Mg^2+ + NH4 -> Mg (NH4)PO4 6H2O -> [\Delta] Mg2P2O7},$$ but its stoichiometry looks incorrect, as well as
  • Polarity of the phosphate ion? - Chemistry Stack Exchange
    I understand that phosphate is bonded covalently, however, it is characterized as a polyatomic ion This is making me confused on whether it's polar or non-polar
  • Nomenclature of polyatomic ions - Chemistry Stack Exchange
    Is there a way to remember polyatomic ions (i e $\\ce{PO4^{3-}}$, $\\ce{SO4^{2-}}$ etc ) For example, our professor will ask on an exam what the equation for iron (III) carbonate Obviously the (III)
  • Dinos taking over - General Discussion - Nano-Reef Community
    1ml of PhosPlus will increase ~0 01ppm of PO4 in 100l of aquarium water Once Phosphate levels are determined, we recommend only increasing 0 01-0 02ppm of PO4 per day by dosing the required amount and waiting 24h to test PO4 levels





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