Question

What is the percentage composition of cucl

Answer 1

Cu = 64.189%

Cl = 35.811%

Step-by-step explanation:

Percentage composition = (mass/molar mass) x 100

CuCl Molar Mass 98.999g/mol

Cu = 63.546g/mol

Cl = 35.453g/mol

Cu = (63.546/98.999) x 100 = 64.189

Cl = (35.453/98.999) x 100 = 35.811

Answer 2

The formula weight of CuCl is: 98.999

Percent compositions are usually weight percent (abbreviated w/o).

Since CuCl has one mole of each element, the calculation is simple.

For Cu it is: (63.546 / 98.999) x 100% = 64.189 w/o

For Cl it is 100.000 - 64.189 = 35.811 w/o