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RESULTS - we observed that three of the mixtures formed...

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RESULTS- Given four different solutions and precipitates to create, we weighed out samples and put them into separate test tubes. Then we had to formulate chemical equations using various solutions, to find ---. Consulting the solubility table rules, we determined which mixtures would form precipitates when mixed together. The equations used ended up as follows: 1. BaCl 2 (aq) + H 2 SO 4 (aq) BaSO 4 (s) + 2HCl (aq) 2. Zn(NO 3 ) 2 (aq) + 2NaOH (aq) Zn(OH) 2 (s) +2NaNO 3 (aq) 3. AgNO 3 (aq) + HCl (aq) AgCl (s) + HNO 3 (aq) 4. NaOH (aq) + HCl (aq) NaCl (s) + H 2 O (l) We added the correct solutions together and put them into a centrifuge. Taking them out,
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Unformatted text preview: we observed that three of the mixtures formed insoluble and one that didn’t. In mixture 1, the pea-sized solid was white and hard in appearance. Mixture 2 gave us a little more of a cloudy white, opaque, jelly-like precipitate. In mixture 3, another pea-sized amount of a white, chalky precipitate was found at the bottom. In the last one, there was no insoluble, so boiling it evaporated the water, and left us with a small amount of salt....
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