3/9/2023 0 Comments Molar mmass c6h6One mole of the acid reacts with one mole of the base.Ĭalculate the molar mass of the unknown solid acidĬalculate the molar mass of the unknown acid." They neutralize the solid acid with 15.0ml of. of an unknown solid acid in an Erlenmeyer flask. Here's the modified question and this suggestion will help prevent errors.Ī lab team places. Before answering, I have a tip that is helpful for chemistry classes as well as for professional jobs like nursing, medicine and engineering: To not lose the decimal point, put a zero in front of it: Thought process: The givens each only had 3 significant figures, so your answer can only have 3 significant figures.On your game answer: molar mass acid: 7.94g/mol.Now I can solve by going back to step 4 above and plugging in 0.00315 moles. This must be the same number of moles of acid since the acid and base are in a 1:1 ratio. Thought process: Now I know how many moles of base.To find moles of base, we're need to look at what we're given and see if there is a way to find moles of base.Need to find how many moles of base we have.(Conceptually: 1 Acid + 1 Base -> Salt + Water). The question tells us its a 1:1 ratio of acid to base.We have grams but we don't have moles of acid so we need to do an additional step before we can finish using the formula we identified in step 3.Step 4: Plug and Chug (use your formula or figure out what additional steps need to be done before you can use the formula) Step 3: Find a formula (search for a formula that has your givens and goings in it) Step 2: Find where you're going (this gives you an idea of what formulas to use.
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