Question

Рассчитайте массовые доли ( в процентах) всех элементов в фосфате аммония

Answer 1

Mr((NH4)3PO4) = 14*3 + 1*12 + 31 + 16*4 =149
W(N) = Ar(N) *n / Mr((NH4)3PO4) *100% = 14 *3 / 149. *100% =28%
W(H) = Ar(H) * n / Mr((NH4)3PO4. *100% = 1*12 / 149.* 100% = 8%
W(P) = Ar(P) * n / Mr (NH4)3PO4. *100% = 31 *1 / 149. *100% = 21%
W(O) = Ar(O) * n / Mr ( NH4)3PO4. * 100% = 16*4 / 149. *100% = 43%

Answer 2

Calculation of Mass Percentages in Ammonium Phosphate

To calculate the mass percentages of all elements in ammonium phosphate, we need to know the chemical formula of ammonium phosphate. However, the search results provided do not directly mention the chemical formula of ammonium phosphate. Therefore, I will provide a general explanation of how to calculate mass percentages in a compound.

To calculate the mass percentage of an element in a compound, you need to know the molar mass of the element and the molar mass of the compound. The molar mass of an element is the mass of one mole of atoms of that element, while the molar mass of a compound is the sum of the molar masses of all the elements in the compound.

Once you have the molar mass of the element and the molar mass of the compound, you can use the following formula to calculate the mass percentage:

Mass Percentage = (Molar Mass of Element / Molar Mass of Compound) * 100%

Without the specific chemical formula of ammonium phosphate, it is not possible to provide the exact mass percentages of all elements in the compound. If you can provide the chemical formula of ammonium phosphate, I would be happy to help you calculate the mass percentages.