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The first conversion factor comes from the balanced chemical equation, the second conversion factor is the molar mass of H 2 O 2, and the third conversion factor comes from the definition of percentage concentration by mass.
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Aug 10, 2022 · In such a conversion, we use the molar mass of a substance as a conversion factor to convert mole units into mass units (or, conversely, mass units into mole units). We also established that 1 mol of Al has a mass of 26.98 g (Example).
Of course, once quantities in moles are available, another conversion can give the mass of the substance, using molar mass as a conversion factor. Example 11. What mass of solute is present in 0.765 L of 1.93 M NaOH? Solution.
- David W. Ball, Jessie A. Key
- 2014
Molar mass can then be used as a conversion factor to convert amounts in moles to amounts in grams. It is important to remember that “mol” in this expression refers to moles of solute and that “L” refers to liters of solution. For example, if you have 1.5 mol of NaCl dissolved in 0.500 L of solution, its molarity is.
The trick here is to use molarity as a conversion factor that will cancel out moles and give you liters (or memorize the volume equation up above). Usually folks have a hard time remembering...
Once you convert to moles of CuSO 4, you can easily convert to grams using your molar mass as a conversions factor. The other thing that we must note is that the volume of our solution is in milliters, so we must convert to liters first before using molarity as a conversion factor.
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Jan 20, 2013 · Of course, once quantities in moles are available, another conversion can give the mass of the substance, using molar mass as a conversion factor. Example 11. What mass of solute is present in 0.765 L of 1.93 M NaOH? Solution.