# Calculate the number of moles of Cl atoms in .86g of C2H4Cl2

These are some problems that I got and I can't seem to solve them.

Calculate the number of moles of Cl atoms in .86g of C_{2}H_{4}Cl_{2}

Also, calculate the total number of atoms in .29g NH_{4}NO_{3}

The molar mass of is C_{2}H_{4}Cl_{2}98.960 g/mol

The molar mass of NH_{4}NO_{3} is 80.0432 g/mol

Any help would be appreciated

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Do not quote me on this, someone should check this first. I need to brush up on my chemistry. This is answer to 1st question.

convert to moles:

.86g C2H4Cl2 x ( 1 mol / 98.60g Cl2) = .0087 mol C2H4Cl2

number of moles of Cl2:

.0087 mol C2H4Cl2 x ( 2 mol Cl2 / 1 mol C2H4Cl2) = .0174 mol Cl2

ch2kb0x

Sun, 2008-09-07 19:02