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Texas State University *

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1141

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Chemistry

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Apr 3, 2024

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pdf

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3

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9 3 2 > - 5 d 3 9 ? ? $ ? 9 3 9 16. With the filter paper still in the funnel spray the filter paper with ethanol. 17. Transfer the ethanol sprayed filter paper to the “C2" watch glass.™., 18. Determine the ?fiass of the ethanol sprayed “C2" filter paper and the “C2" watch glass and record that mass on the pre the mass and record it on the previous pa 20. Collect your erlenmeyer flask and funnel - place your funnel in the opening of the erlenmeyer flask. 21. Place "C3" filter paper in the funnel. 22. Collect ~100mL of deionized water an/q, our it through the "C3" filter paper, ensuring that the filter paper is completely saturated w!'y:f water. o \N*after 30 min {s;ts of watch glass, filter, & water 23. Transfer the filter paper to the “C3" watch glass. 24. Determine the mass of the/'C3” filter paper and the “C3" watch glass andfecord that mass in the space to the right. f 26. Place the damp (\gdfc’;l filter paper + watch glass in a safe space Aear your working area where it will not be disrupted. Part ll: Separating iron from a gquaternary mixture (a mixture with 4 things) 1. Collect a plastic beaker, determine its mass and record it to the right for “beaker #1." 2. Collect approximately 2g of the quaternary mixture, in your plastic beaker and record the precise mass in the space to the right. 3. Collect the other plastic beaker, determine the mass and record it in the Space to the right for “beaker #2." 4. Place your magnet under the base of “beaker #1" and carefully pour the mixture from “beaker #1" to "beaker #2." 5. Determine the mass of “beaker #2" contents transferred from ‘beaker #1." 6. Determine the Mass of iron from the original Mixture, S Li LR and the 211 Mass of watch gfisé aC 2k g Mass of w%lass, filter, & water et e e Ly (e Mass;i@ater égs of watch glass, filter, & water *after 15 min Mass of watch glass, filter, & water *after 45 min g Mass of \7v r still in filter paper after 45min g Quaternary Mixture Data Mass of Beaker #1 We.H2 ¢ Mass of Beaker + mixture ¥ . \>rg Mass of mixture S 00 g Mass of Beaker #2 1663 g Mass of Beaker #2 + mixture 77 %1 g Mass of Iron 0K\ g 1A% GERERAL CRENISTRY Il i
s (W Y Ty L BRI R A e N s Ot oo Tl B e Z A AR g NG RS ) 2 v Y ) AT Wi b ey e N 25 gl Quaternary Mixture Data Mass of Erlenmeyer flask Bslol g Mass of E flask + NaCl e o i I Mass of NaCl @t g Quaternary Mixture Data Mass of Evaporatingdish ~ 2 1:(05 ¢ Mass of E dish + sand Q0L g Mass of sand Jil .. g b A e L - W e @ - ‘-n‘-“\-\‘\- BN Y ; \ » Part lll: Separating NaCl from a quaternary mixture 1. Collect a coffee filter and remove the baffles from the flask. 2. Collect approximately 50mL of deionized water in your graduated cylinder. 3. Transfer approximately 25mL deionized water into "beaker #2." 4, Determine the mass of your dry erlenmeyer flask and record it in the space to the left. i 5. Place the funnel in the erlenemeyer flask and ' ¢ place the filter paper in the funnel. 6. Transfer the contents of “beaker #2" to the funnel - do not overload the filter paper and do not let any solution seep between the filter paper and the funnel. 7. Transfer additional deionized water to “beaker #2" as needed to transfer all of the materials from “beaker #2" to the funnel. 8. Carfully remove the funnel from the erlenmeyer flask and place the erlenmeyer flask on the hot | @ plate and begin heating the contents of the | @ .n,; g Sy SR X1 ) o - \v! \J 8 \ gessons 8/ i LY - W =4 \= \= R erlenemeyer flask on the hot plate until all water & has evaporated. @ 9. After the solution in the evaporating dish has evaporated, turn the hot plate off, allow the erlenmeyer flask to cool - determine the mass of the erlenmeyer flask + NaCl. Part IV: Separating sand from a quaternary mixture 1. Determine the mass of your evaporating dish and record in the space to the left. 2. Carefully transfer the filter paper from your funnel onto your evaporating dish. 3. Add HCI to the filter paper in dish. 4. Add HCI to this mixture un develop. 5. After bubbles sto the filter Paper from t behind the solution filter paper. ssegeeetl . D | i your evaporating til no more bubbles | P forming, carefully remove he €vaporating dish - leaving and any solids - discard the ZU,EEWEML CHERIST R e —— 4 £
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