Just want to know how i would go about this question, where would I start.

Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound.
Balance the reaction of Na2O + P2O5 = Na3PO4 using this chemical equation balancer! The compound NO2 has a molar mass of 46g/mol, so the empirical and molecular formulas are the same.

Diphosphorus Trioxide P2O3 Molar Mass, Molecular Weight. From your mass of MgNH4PO4.6H2O collected, calculate your value a) for the mass of "P2O5" in the initial mass of fertilizer analyzed b) the % "P2O5" in the fertilizer.

284/142 = 2, so the molecular formula is P4O10.
The ratio of the mass to the molar mass leads to the number of moles of the substance.

Check the chart for more details. The mass of P2O5 formed is therefore 142/62 times the mass of P we started with. Compare this with the manufacturer's specification.

P2O5 has an apparent Mr (add up the Ar vaules) of 142.

Enter a chemical formula to calculate its molar mass and elemental composition: Molar mass of P2o5*0.0250 is 141.9445 g/mol. The molar mass and molecular weight of P2O5 - Phosphoric Anhydride is 141.945. The relative formula mass of two atoms of P (phosphorous) is 62, whereas for one molecule of P2O5 it is 142. Image Transcriptionclose. The molecular formula is the same as the empirical formula, NO2. No of moles=given mass÷molar mass 0.0250=given mass÷31×2+16×5 Given mass=142×0.025 Hence mass of 0.025 moles of P2O5 is 3.55g One mole of substance incorporates the Avogadro number of molecules in it.

If a compound has an empirical formula of P2O5 and a molar mass of 283.88g/mol, what is its molecular formula? Number of moles of P2O5 available in 0.420 g of P2O5 can be... help_outline. Convert between P2O5*0.0250 weight and moles. Do a quick conversion: 1 moles P2O5 = 141.944522 gram using the molecular weight calculator and the molar mass of P2O5. Please show how you did it. Molar Mass: 109.9457 Keywords: Percentage, p2o5, mg2p2o7, molar mass of a p2o5, molar mass of a mg2p2o7, gram per mol, Mg, O, P, 63.78 %, atomic mass of Mg, atomic mass of P is 30.974 g, atomic mass …