posted by .


p2o5+H2o = H2P2O6

why is it H3po4? instead of H2P2O6 please explain me

  • Chemistry -

    You appear to be trying to use the reactants and simply sum them to find the product. That is what is wrong.
    For example, Na + Cl2 ==> is not NaCl2 but NaCl. When Na combines with Na, the result is NaCl because Na has a valence of +1 and Cl has a valence of -1 therefore the formula is NaCl. You take care of making the atoms equal by balancing the equation.
    Na + Cl2 ==> NaCl and we balance it like this.
    2Na + Cl2 ==> 2NaCl.
    K2O + H2O ==> is not K2H2O2 but KOH. We balance it as this.
    K2O + H2O ==> 2KOH

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Given this equation: 2P2O5 + 6H2O ---> 4H3PO4. If you begin with 4.8 grams of p2o5 and 15.2 grams h20, what will be your limiting reactant. I got the answer to that and it is P2O5. (6.6 grams) and H2O was 55.2 grams. so the limiting …
  2. Chemistry

    Given: H3PO4(aq) + 3 NaOH(aq) ¨ 3 H2O(l) + Na3PO4(aq) ƒ¢H = -166.5 kJ What is the value for q (heat) if 4.00 g of NaOH reacts with an excess of H3PO4?
  3. Check a chemistry answer

    So I think I have done this problem right, I was just wondering if anyone would check over it for me. What mass (in grams) of P2O5 contains 1.20 x 1023 atoms of phosphorus?
  4. Chemistry(Please check)

    Which of the following equations correspond to the Ka2 for phosphoric acid?
  5. chemistry

    what is the structure of H2P2O6?
  6. chemistry

    What is the structure of H2P2O6??
  7. chemistry

    Phosphorus pentachloride, PCl5, reacts with water to form phosphoric acid, H3PO4, and hydrochloric acid, HCl. PCl5(s) + 4H2O() → H3PO4(aq) + 5HCl(aq) (a) What mass of PCl5 is needed to react with an excess quantity of H2O to …
  8. Chemistry

    Problem: Calculate the pH titration of 50 mL of 0.02M H3PO4 from pH 1 to 13 with 0.4M NaOH. So I believe the balanced reaction is: H3PO4 + OH --> H2PO4 + H2O (Since Na I believe is insignificant, maybe that's wrong. If so then, …
  9. chemistry

    What is the chemical equation that describes the complete neutralization of H3PO4 by NaOH?
  10. Chemistry

    The oxidation of phosphine (PH3) to phosphorus pentoxide (P2O5) is given by the chemical equation: _PH3+O2-->_P2O5+H2O A.balance the chemical equation many grams of O2 will react completely with 35.0grams of PH3?

More Similar Questions