In 500 gm phenol calculate : no. Of moles of phenol
Answers
answer.
you look at the molar mass of each element on a periodic table (C, H, and O), multiply them by the number in the equation (6C, 6H, and O) and add them up, the total molar mass is 94.11 g/mol.
Now you need to set up the equation using stoichiometry
(4.25 g/1)*(1 mol/94.11 g)
The grams units cancel out, and what you’re left with is the number of moles!
The final answer is 0.045159919243439 moles of phenol.
This same strategy can be used for any chemical formula.
I hope I was of help to you, let me know if you have any more chemistry problems you need help with!
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No. of moles=mass of compound÷molar mass of compound (gm)
where,molar mass of phenol=94.11 gm/mol
and we have phenol of mass 4.25gm
=4.25gm ÷94.11 gm/mol
=0.04515992 mol
{ 1 grams Phenol is equal to 0.010625723346117 mole
and 1 mole of phenol is equal to 94.11124gm }
Productivity maximized.
Number of moles (m) = given mass(w)/ (W)Molar mass
Molar mass of phenol (W)- C6H5OH =
12*6+6*1+16 = 94
m=w/W
m=4.25g/94g
m=0.0452 moles
I hope it helps.
The molar mass of a compound is the conversion factor that relates mass and number of moles. To find the number of moles you would divide the mass you are given by the molar mass of phenol. In this way the units of grams will cancel out and you will be left with moles of phenol.
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