Question
Level Yellow What is the molar mass of the following? 5) Ag_(2)SO_(4) __ 7) Ba(NO_(2))_(2) __ 6) CO_(2) __ 8) (NH_(4))_(3)P __
Answer
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Isla
Elite · Tutor for 8 years
Answer
5) The molar mass of Ag2SO4:Atomic mass of Ag = 107.87 g/mol.Atomic mass of S = 32.07 g/mol.Atomic mass of O = 16.00 g/mol.= 2(107.87 g/mol) + 32.07 g/mol + 4(16.00 g/mol) = 311.81 g/mol.7)The molar mass of Ba(NO2)2:Atomic mass of Ba = 137.33 g/mol.Atomic mass of N = 14.01 g/mol.Atomic mass of O = 16.00 g/mol.= 137.33 g/mol + 2(14.01 g/mol) + 4(16.00 g/mol) = 261.35 g/mol.6) The molar mass of CO2:Atomic mass of C = 12.01 g/mol.Atomic mass of O = 16.00 g/mol.= 12.01 g/mol + 2(16.00 g/mol) = 44.01 g/mol.8) The molar mass of (NH4)3P:Atomic mass of N = 14.01 g/mol.Atomic mass of H = 1.01 g/mol.Atomic mass of P = 30.97 g/mol.= 3(14.01 g/mol) + 12(1.01 g/mol) + 30.97 g/mol = 85.00 g/mol.
Explanation
Molar mass, identified in units of grams per mole (g/mol), is the mass of one mole of a substance. It is calculated by summing the masses of each of the constituent atoms in the compound.So, for the molecules in question:5) Ag2SO4 - composed of 2 silver (Ag) atoms, 1 sulfur (S) atom, and 4 oxygen (O) atoms.7) Ba(NO2)2 - composed of 1 barium (Ba) atom, 2 nitrogen (N) atoms, and 4 oxygen (O) atoms.6) CO2 - composed of 1 carbon (C) atom and 2 oxygen (O) atoms.8) (NH4)3P - composed of 3 nitrogen (N) atoms, 12 hydrogen (H) atoms, and 1 phosphorus (P) atom.The molar mass will be calculated by looking up the atomic mass for each of these constituent uttering atoms on a periodic table, multiplying each by the number of that atom there are in the compound, and adding these together.