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Chemistry
How do you get the grams of a compound converted to mols? For example, 58g NaCl to mols. How would you get that?
Also, what is this equation used for: grams of substance/molar mass
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Ok, in order to get from mass to moles, you have to divide the grams given (59 g) by the molar mass of the compound (NaCl- 22.99+35.45). The final result of that problem is 1.01 mol NaCl.
Hope that helps!
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You can figure out questions like that in chemistry by checking your units.
You start with grams, and you want mols, right?
So...
g NaCl * (1 mol NaCl / MM NaCl) = g * mol/g = mols
The equation is used to find the number of mols... using the technique above, we can find that.
g / (g/mol) = g * (mol/g) = mols
Hope I helped you understand a bit better!
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One "mole" of atoms is Avogadro's number of atoms.
To find out how many moles of a substance you have, divide the mass (in grams) by the molar mass (look at a periodic table).
For example, if you have 58g of NaCl, look up the molar mass of Na and that of Cl, add them together, and divide 58 by that number.
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