mass of 3.00mol of selenium oxybromide

Answer 1

To find the mass of 3.00 mol of selenium oxybromide, we need to know the molecular formula and molar mass of the compound.

The molecular formula for selenium oxybromide is SeOBr2.

To calculate the molar mass, we need to add up the atomic masses of selenium (Se), oxygen (O), and two bromine (Br) atoms:

Mass of Se = 78.96 g/mol
Mass of O = 15.99 g/mol
Mass of 2 Br = 2 x 79.90 g/mol = 159.80 g/mol

Molar mass of SeOBr2 = 78.96 g/mol + 15.99 g/mol + 159.80 g/mol = 254.75 g/mol

Now we can use the molar mass to find the mass of 3.00 mol of SeOBr2:

Mass = 3.00 mol x 254.75 g/mol = 764.25 g

Therefore, the mass of 3.00 mol of selenium oxybromide is 764.25 g.