Chem Lab, do ions combine in definite ratios.

LAB 3.Ø.Ø: do ions meld in definite ratios PURPOSE The purpose of this probe is to determine whether ions meld in definite ratios or not. To observe, and seaman a table of the dissimilar ions. QUESTION If bull (II) convert when combine with sodium change at different quantities combine to flesh ions in definite ratios. HYPOTHESIS / PREDICTION I weigh that the ions will combine in definite ratios due to the circumstance that the valance electrons will not be changing end-to-end any chemics; consequently the ions must(prenominal) combine in definite ratios. EXPERIMENTAL DESIGN A proficiency is per straininged in which horseshit (II) sulphate and sodium carbonate argon locationd together in various exam renders, with various quantities of each chemical and a chemical reaction should happen. The quantify for the two chemicals to entirely react is about five ? ex minutes. The temperatures of the solutions, the quantities of the solutions are in each(prenominal) controlled variables. The chemicals are known to form a precipitate. MATERIALS -Safety glasses-10 ml horseshit (II0 convert solution -Seven demonstrate metros-10 ml sodium carbonate solution -1 taste tube rack- Tap water -Masking Tape -Two affection Droppers PROCEDURE 1.Placed goggles 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 get hold of number of copper (II) sulfate to the numbered test tube. 5.

Using the second eyedropper, added the distinguish number of sodium carbonate to the numbered test tubes. 6.Swirled test tubes light to mix the contents. 7.Allowed the precipitate to try for 7 minutes. 8.Recorded observations. OBSERVATIONS Table 1.1 Test Tube #(Column 1) Copper (II) sulfate Drops (column2) Sodium Carbonate Drops (Column 3) General Observations- ColourPrecipitate (column4) 119Light BlueLittle 237Medium BlueMedium 355Dark BlueLarge 473Medium BlueMedium 591Light BlueLittle Double Displacement: CuSO4 (aq) + NaCO3... If you subscribe to to get a practiced essay, order it on our website: Ordercustompaper.com

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