Question

molecular mass is defined to be the sum of the masses of the individual atoms that make up a molecule. hydrogen peroxide (h₂o₂) contains 2 atoms of hydrogen and 2 atoms of oxygen and has a molecular mass of 34.01468 grams per mole (g/mol). water (h₂o) contains 2 atoms of hydrogen and 1 atom of oxygen and has a molecular mass of 18.01528 g/mol. which of the following systems could be used to find the mass of one atom of hydrogen, x, in g/mol, and the mass of one atom of oxygen, y, in g/mol? choose 1 answer: 2x + 2y = 34.01468 2x + y = 18.01528 2x + 2y = 34.01468 x + 2y = 18.01528 2x + 2y = 18.01528 2x + y = 54.01468 2x + 2y = 18.01528 x + 2y = 34.01468

Explanation:

Step1: Analyze hydrogen peroxide

Hydrogen peroxide ($H_2O_2$) has 2 hydrogen atoms (mass \(2x\)) and 2 oxygen atoms (mass \(2y\)). Molecular mass is \(34.01468\), so \(2x + 2y=34.01468\).

Step2: Analyze water

Water ($H_2O$) has 2 hydrogen atoms (mass \(2x\)) and 1 oxygen atom (mass \(y\)). Molecular mass is \(18.01528\), so \(2x + y = 18.01528\).

Answer:

A. \(2x + 2y = 34.01468\), \(2x + y = 18.01528\)