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Oxalic acid crystals, H₂C₂O₄ · 2H₂O, have a molar mass of 126.07 g/mol…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Oxalic acid crystals, , have a molar mass of g/mol. What mass must you weigh to make of a solution?
Need a reminder? The key ideaShow
Moles molarity . Dilution: . Mixing the same solute: add the moles and the volumes. At the end point of a titration, the moles of acid and base match the ratio of the equation.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Moles. mol.
Step 2. Mass. g.
Answer: weigh g, dissolve it, and make it up to .
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