GCSE Chemistry Required Practical: Electrolysis of a Solution - Revision history

NRJC at 09:36, 29 March 2020

2020-03-29T09:36:02Z

NRJC at 11:30, 13 April 2019

2019-04-13T11:30:41Z

NRJC: /* Meaning */

2019-04-08T17:14:33Z

‎Meaning

NRJC: /* Method */

2019-04-08T17:14:20Z

‎Method

NRJC: /* Method */

2019-01-28T17:59:07Z

‎Method

NRJC at 17:58, 28 January 2019

2019-01-28T17:58:21Z

NRJC at 17:56, 28 January 2019

2019-01-28T17:56:44Z

NRJC: Created page with "==Key Stage 4== ===Meaning=== Perform an electrolysis experiment to observer what happens when an aqueous solution is electrolysed. ===Method==="

2019-01-28T10:17:01Z

Created page with "==Key Stage 4== ===Meaning=== Perform an electrolysis experiment to observer what happens when an aqueous solution is electrolysed. ===Method==="

New page

==Key Stage 4==
===Meaning===
Perform an [[electrolysis]] experiment to observer what happens when an [[aqueous]] [[solution]] is [[electrolysis|electrolysed]].

===Method===

← Older revision		Revision as of 09:36, 29 March 2020
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	#After 5 minutes turn off the [[Power Pack\|power pack]] and remove the [[cathode]] to [[observe]] whether any changes have taken place.		#After 5 minutes turn off the [[Power Pack\|power pack]] and remove the [[cathode]] to [[observe]] whether any changes have taken place.
	#Repeat this experiment for the following [[solution]]s; [[Copper (II) Sulphate]], [[Sodium Chloride]] and [[Sodium Sulphate]].		#Repeat this experiment for the following [[solution]]s; [[Copper (II) Sulphate]], [[Sodium Chloride]] and [[Sodium Sulphate]].
		+
		+	===Copper Chloride Results===
		+	: Anode: Bubbles of [[gas]] form - Placing [[litmus]] paper next to the [[anode]] bleaches the paper, showing the presence of [[Chlorine]] [[gas]].
		+	: Cathode: A pink/brown [[solid]] forms. - This is copper.
		+
		+	===Copper Sulphate Results===
		+	: Anode: Bubbles of [[gas]] form - Collecting the [[gas]] in a [[Test Tube\|test tube]] it relights a glowing splint, showing the presence of [[Oxygen]].
		+	: Cathode: A pink/brown [[solid]] forms - This is copper.
		+
		+	===Sodium Chloride Results===
		+	: Anode: Bubbles of [[gas]] form - Placing [[litmus]] paper next to the [[anode]] bleaches the paper, showing the presence of [[Chlorine]] [[gas]].
		+	: Cathode: Bubbles of [[gas]] form - Collecting the [[gas]] in a [[Test Tube\|test tube]] a lit splint causes a squeaky pop sound, showing the presence of [[Hydrogen]] [[gas]].
		+
		+	===Sodium Sulphate Results===
		+	: Anode: Bubbles of [[gas]] form - Collecting the [[gas]] in a [[Test Tube\|test tube]] it relights a glowing splint, showing the presence of [[Oxygen]].
		+	: Cathode: Bubbles of [[gas]] form - Collecting the [[gas]] in a [[Test Tube\|test tube]] a lit splint causes a squeaky pop sound, showing the presence of [[Hydrogen]] [[gas]].

@@ Line 8: / Line 8: @@
 #Attach a [[Direct Current|direct current]] [[Power Pack|power pack]] to the [[electrode]]s using wires and crocodile clips.
 #Set the [[Potential Difference|potential difference]] to 4 [[Volt]]s.
-#Record your [[observation]]s of changes at each [[electrode]]. You may also use a [[pH indicator]] paper next to the [[anode]] but above the [[solution]] and note any colour change.
+#Record your [[observation]]s of changes at each [[electrode]]. You may also use a [[pH Indicator]] paper next to the [[anode]] but above the [[solution]] and note any colour change.
 #After 5 minutes turn off the [[Power Pack|power pack]] and remove the [[cathode]] to [[observe]] whether any changes have taken place.
 #Repeat this experiment for the following [[solution]]s; [[Copper (II) Sulphate]],  [[Sodium Chloride]] and [[Sodium Sulphate]].

@@ Line 8: / Line 8: @@
 #Attach a [[Direct Current|direct current]] [[Power Pack|power pack]] to the [[electrode]]s using wires and crocodile clips.
 #Set the [[Potential Difference|potential difference]] to 4 [[Volt]]s.
-#Record your [[observation]]s of changes at each [[electrode]]. You may also use a [[pH indicator]] paper next to the [[anode]] and note any colour change.
+#Record your [[observation]]s of changes at each [[electrode]]. You may also use a [[pH indicator]] paper next to the [[anode]] but above the [[solution]] and note any colour change.
 #After 5 minutes turn off the [[Power Pack|power pack]] and remove the [[cathode]] to [[observe]] whether any changes have taken place.
 #Repeat this experiment for the following [[solution]]s; [[Copper (II) Sulphate]],  [[Sodium Chloride]] and [[Sodium Sulphate]].

@@ Line 9: / Line 9: @@
 #Set the [[Potential Difference|potential difference]] to 4 [[Volt]]s.
 #Record your [[observation]]s of changes at each [[electrode]]. You may also use a [[pH indicator]] paper next to the [[anode]] and note any colour change.
 #Repeat this experiment for the following [[solution]]s; [[Copper (II) Sulphate]],  [[Sodium Chloride]] and [[Sodium Sulphate]].

← Older revision		Revision as of 17:56, 28 January 2019
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	===Method===		===Method===
		+	#Pour 50ml of [[Copper (II) Chloride]] [[solution]] into a 100ml [[beaker]].
		+	#Place two [[Carbon]] [[electrode]]s held apart from one another by an [[Electrical Insulator\|electrical insulator]].
		+	#Attach a [[Direct Current\|direct current]] [[Power Pack\|power pack]] to the [[electrode]]s using wires and crocodile clips.
		+	#Set the [[Potential Difference\|potential difference]] to 4 [[Volt]]s.
		+	#Record your [[observation]]s of changes at each [[electrode]]. You may also use a [[pH indicator]] paper next to the [[anode]] and note any colour change.
		+	#Repeat this experiment for the following [[solution]]s; [[Copper (II) Sulphate]], [[Sodium Chloride]] and [[Sodium Sulphate]].

@@ Line 1: / Line 1: @@
 ==Key Stage 4==
 ===Meaning===
 Perform an [[electrolysis]] experiment to observe what happens when an [[aqueous]] [[solution]] is [[electrolysis|electrolysed]].