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3.38 For many years chloroform (chcl3 calculate the percent composition by mass of this compound hyrdogen is 1.008 solve it properly
Accepted Answer
To calculate the percent composition by mass of chloroform (CHCl3), follow these steps:
1. Find the molar mass of chloroform:
Carbon (C): 12.01 g/mol
Hydrogen (H): 1.008 g/mol
Chlorine (Cl): 35.45 g/mol
Molar mass of CHCl3 = 12.01 + 1.008 + (35.45
3) = 119.37 g/mol
2. Calculate the mass of each element in one mole of chloroform:
Carbon: (12.01 g/mol / 119.37 g/mol)
100% = 10.06%
Hydrogen: (1.008 g/mol / 119.37 g/mol)
100% = 0.84%
Chlorine: (35.45 g/mol
3 / 119.37 g/mol)
100% = 89.10%
Therefore, the percent composition by mass of chloroform is:
Carbon: 10.06%
Hydrogen: 0.84%
Chlorine: 89.10%
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