Chem Lab, do ions combine in definite ratios.

LAB 3.Ø.Ø: do ions combine in definite ratios

PURPOSE

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.

QUESTION

If bull (II) convert when combine with sodium change at different quantities combine to body-build ions in definite ratios.

HYPOTHESIS / 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 performed in which horseshit (II) sulfate and sodium carbonate are placed together in various exam renders, with various quantities of each chemical and a chemical reaction should happen. The time 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 controlled variables. The chemicals are known to form a precipitate.

MATERIALS

-Safety glasses-10 ml copper (II0 sulfate solution

-Seven demonstrate tubes-10 ml sodium carbonate solution

-1 test tube rack- Tap water

-Masking Tape

-Two Eye 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 appropriate number 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 gently 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...

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