Calculate the mass percent of bromine in CBr4 given the following molar masses:  C: 12.01 g/mole; Br: 79.90 g/mole.Group of answer choices11.10%36.22%75.94%92.52%96.38%

To calculate the mass percent of an element in a compound, you need to know the molar mass of the compound and the molar mass of the element in question.

Step 1: Calculate the molar mass of CBr4. The molar mass of CBr4 is the sum of the molar mass of Carbon (C) and four times the molar mass of Bromine (Br).

Molar mass of CBr4 = Molar mass of C + 4 * Molar mass of Br = 12.01 g/mole + 4 * 79.90 g/mole = 12.01 g/mole + 319.6 g/mole = 331.61 g/mole

Step 2: Calculate the mass percent of Bromine (Br) in CBr4. The mass percent of Bromine in CBr4 is the molar mass of Bromine times four (since there are four Bromine atoms in CBr4), divided by the molar mass of CBr4, all multiplied by 100% (to convert the ratio to a percentage).

Mass percent of Br in CBr4 = (4 * Molar mass of Br / Molar mass of CBr4) * 100% = (4 * 79.90 g/mole / 331.61 g/mole) * 100% = (319.6 g/mole / 331.61 g/mole) * 100% = 0.9638 * 100% = 96.38%

So, the mass percent of Bromine in CBr4 is 96.38%.