Tuesday, February 11, 2014

Chem Lab, do ions combine in definite ratios.

LAB 3.Ø.Ø: do ions flux in distinct ratios decadedency The purpose of this investigating is to determine whether ions combine in definite ratios or not. To observe, and shit a table of the different ions. doubtfulness If bull (II) convert when combine with sodium change at different quantities combine to body-build ions in definite ratios. guess / PREDICTION I believe that the ions will combine in definite ratios due to the fact that the valance electrons will not be changing throughout any chemics; consequently the ions must(prenominal) combine in definite ratios. EXPERIMENTAL DESIGN A technique is percourseed in which horseshit (II) sulfate and sodium carbonate are placed together in variant exam renders, with various quantities of each chemical and a chemical reaction should happen. The clipping for the two chemicals to entirely react is about five ? ten minutes. The temperatures of the solutions, the quantities of the solutions are in all control led variables. The chemicals are known to form a precipitate. MATERIALS -Safety glasses-10 ml copper (II0 sulfate solution -Seven deliver resistances-10 ml sodium carbonate solution -1 test tube rack- Tap water -Masking Tape -Two Eye Droppers PROCEDURE 1.Placed look on face. 2.Numbered the test tubes from 1 ? 5 and place in test tube rack. 3.Washed the test tubes with tap water. 4.Using the eyedropper, added the charm act of copper (II) sulfate to the numbered test tube. 5.Using the second eyedropper, added the appropriate number of sodium carbonate to the numbered test tubes. 6.Swirled test tubes quietly to mix the contents. 7.Allowed the precipitate to try for 7 minutes. 8.Recorded observations. OBSERVATIONS Table 1.1 canvas Tube #(Column 1) Copper (II) Sulfate Drops (column2) Sodium Carbonate Drops (Column 3) planetary Observations- ColourPrecipitate (column4) 119Light BlueLittle 237Medium BlueMedium 355Dark BlueLarge 473Medium BlueMedium 591Light BlueLittle Doub le Displacement: CuSO4 (aq) + NaCO3... ! If you need to get a adept essay, order it on our website: BestEssayCheap.com

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