-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
1 changed file
with
213 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,213 @@ | ||
| <!DOCTYPE html> | ||
| <html lang="en"> | ||
| <head> | ||
| <meta charset="UTF-8"> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | ||
| <title>Hydrogen Sulphide</title> | ||
| <script src="chem1.js" defer></script> | ||
| <script src="timer.js" defer></script> | ||
| <meta name="Keywords" content="exercises, balancing, chemistry, equations, hydrogen-chloride, ammonia, nitric-acid, nitrates, sulphur-dioxide, hydrogen-sulphide, sodium-hydroxide, sulphuric-acid, preparation "> | ||
| <meta name="author" content="Jiban Majumdar"> | ||
| <link rel="stylesheet" href="mystyle.css"> | ||
| </head> | ||
| <body> | ||
| <div> | ||
| <img src="myPhoto.jpg" alt="webmaster" width="150" height="200"> <br> <a href="mailto:[email protected]">webmaster</a> | ||
| </div> | ||
| <table class="center"> | ||
| <tr> | ||
| <td><a href="index.html">Home Page</a></td> | ||
| <td><a href="equ.html">Elementary Equations</a></td> | ||
| <td><a href="advanced.html">Advanced Equations</a></td> | ||
| <td><a href="assorted.html">Assorted Equations</a></td> | ||
| <td><a href="chlorine.html">Chlorine</a></td> | ||
| <td><a href="ammonia.html">Ammonia</a></td> | ||
| </tr> | ||
| <tr> | ||
| <td><a href="nitric-acid.html">Nitric Acid</a></td> | ||
| <td><a href="sulphur-dioxide.html">Sulphur Dioxide</a></td> | ||
| <td><a href="hydrogen-chloride.html">Hydrogen Chloride</a></td> | ||
| <td><a href="sulphuric-acid.html">Sulphuric Acid</a></td> | ||
| <td><a href="sodium-hydroxide.html">Sodium Hydroxide</a></td> | ||
| <td></td> | ||
| </tr> | ||
| </table> | ||
| <h1 style="text-align:center;">Hydrogen Sulphide</h1> | ||
|
|
||
| <h2>Practise balancing equations: </h2> <h3>Direction:</h3> <ul><li>In the following equations you will see a blank box before the symbol of each compound and element. Enter the lowest possible number in each box, or leave the box blank if you think the chemical needn't have a number (i.e. the number is equivalent to '1').</li> | ||
| <li>When you think the equation is balanced, click on the small button <span style= "color:blue;"><b>"Check answer"</b></span> that appears below it.</li> <lI>If your equation is incorrect, then click the button <span style= "color:blue;"><b> "Reset"</b></span> and try balancing the equation again.</li> <li>In case you are in a hurry or are unable to balance, then click the button <span style= "color:blue;"><b>"Show answer."</b></span></li> | ||
| <li>If you want to know the time taken (minutes:seconds) to balance a chemical equation, you click the <span style="color:blue;"><b>"Start"</b></span> button and after balancing the equation, click the <span style="color:blue;"><b>"Stop"</b></span>button. Once, you have noted the time, click the <span style="color:blue;"><b>"Reset Timer"</b></span> button. | ||
| </li></ul> | ||
|
|
||
| <h3>Note:</h3> If you get no response after | ||
| clicking 'Check answer' or 'Show answer', your browser has disabled to run this | ||
| program. Enable it by clicking below the 'address | ||
| bar' and follow the instructions. | ||
| <form name="equations"> | ||
|
|
||
| <h4>Preparation of Hydrogen Sulphide:</h4> | ||
| 1. When Iron (II)Sulphide is reacted with dilute Hydrochloric acid, Hydrogen sulphide gas is formed: | ||
| <p style="font-size:115%; text-align:center;"><input style="font-size: 16px; text-align: center;" | ||
| size=1 name=q1a> FeS + <input style="font-size: 16px; text-align:center;" size=1 name=q1b> HCl → <input style="font-size: 16px; text-align: center;" size=1 name=q1c> FeCl<sub>2</sub>+ <input style="font-size:16px;text-align:center" size=1 name=q1d> H<sub>2</sub>S</p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <input onclick="check(1,'Preparation of Hydrogen sulphide',1,2,1,1,0,0,'FeS + HCl','FeCl<sub>2</sub> + H<sub>2</sub>S');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(1,'Preparation of Hydrogen sulphide',1,2,1,1,0,0,'FeS + 2HCl','FeCl<sub>2</sub> + H<sub>2</sub>S');" type="button" value="Show answer"></p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer1">00:00</span> | ||
| <button type="button" onclick="startTimer('timer1')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer1')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer1')">Reset Timer</button> | ||
| </p> | ||
| <p></p> | ||
| 2. When Iron (II)Sulphide is reacted with dilute Sulphuric acid, Hydrogen sulphide gas is formed: | ||
|
|
||
| <p style="font-size:115%; text-align:center;"> <input style="font-size: 16px; text-align: center;" | ||
| size=1 name=q2a> FeS + <input style="font-size: 16px; text-align:center;" size=1 name=q2b> H<sub>2</sub>SO<sub>4</sub>→ <input style="font-size: 16px; text-align: center;" size=1 name=q2c> FeSO<sub>4</sub>+ <input style="font-size:16px;text-align:center," size=1 name=q2d> H<sub>2</sub>S</p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <input onclick="check(2,'Preparation of Hydrogen sulphide',1,1,1,1,0,0,'FeS + H<sub>2</sub>SO<sub>4</sub>','FeSO<sub>4</sub> + H<sub>2</sub>S');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(2,'Preparation of Hydrogen sulphide',1,1,1,1,0,0,'FeS + H<sub>2</sub>SO<sub>4</sub>','FeSO<sub>4</sub> + H<sub>2</sub>S');" type="button" value="Show answer"></p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer2">00:00</span> | ||
| <button type="button" onclick="startTimer('timer2')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer2')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer2')">Reset Timer</button> | ||
| </p> | ||
| <p></p> | ||
| <h4>Reactions of Hydrogen Sulphide:</h4> | ||
| 1. Hydrogen sulphide gas burns in limited amount of air to form Sulphur and water: | ||
|
|
||
| <p style="font-size:115%; text-align:center;"> <input style="font-size: 16px; text-align: center;" | ||
| size=1 name=q3a> H<sub>2</sub>S + <input style="font-size: 16px; text-align: center;" size=1 name=q3b> O<sub>2</sub>→ <input style="font-size: 16px; text-align: center;" size=1 name=q3c> S + <input style="font-size: 16px; text-align: center;" size=1 name=q3d> H<sub>2</sub>O </p> | ||
| <p style="font-size:115%; text-align:center;"> <input onclick="check(3,'Reactions of Hydrogen sulphide',2,1,2,2,0,0,'H<sub>2</sub>S + O<sub>2</sub>','S + H<sub>2</sub>O');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(3,'Reactions of Hydrogen sulphide',2,1,2,2,0,0,'2H<sub>2</sub>S + O<sub>2</sub>','2S + 2H<sub>2</sub>O');" type="button" value="Show answer"> </p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer3">00:00</span> | ||
| <button type="button" onclick="startTimer('timer3')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer3')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer3')">Reset Timer</button> | ||
| </p> | ||
| <p></p> | ||
|
|
||
| 2. In excess air Hydrogen sulphide gas burns with a blue flame to form Sulphur dioxide and water: | ||
|
|
||
| <p style="font-size:115%; text-align:center;"> <input style="font-size: 16px; text-align: center;" | ||
| size=1 name=q4a> H<sub>2</sub>S + <input style="font-size: 16px; text-align: center;" size=1 name=q4b> O<sub>2</sub>→ <input style="font-size: 16px; text-align: center;" size=1 name=q4c> SO<sub>2</sub> + <input style="font-size: 16px; text-align: center;" size=1 name=q4d> H<sub>2</sub>O </p> | ||
| <p style="font-size:115%; text-align:center;"> <input onclick="check(4,'Reactions of Hydrogen sulphide',2,3,2,2,0,0,'H<sub>2</sub>S + O<sub>2</sub>','SO<sub>2</sub> + H<sub>2</sub>O');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(4,'Reactions of Hydrogen sulphide',2,3,2,2,0,0,'2H<sub>2</sub>S + 3 O<sub>2</sub>',' 2SO<sub>2</sub> + 2H<sub>2</sub>O');" type="button" value="Show answer"> </p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer4">00:00</span> | ||
| <button type="button" onclick="startTimer('timer4')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer4')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer4')">Reset Timer</button> | ||
| </p> | ||
| <p></p> | ||
| 3. Hydrogen sulphide gas reacts with Chlorine gas to form Sulphur and Hydrogen chloride gas: | ||
|
|
||
| <p style="font-size:115%; text-align:center;"> <input style="font-size: 16px; text-align: center" | ||
| size=1 name=q5a> H<sub>2</sub>S + <input style="font-size: 16px; text-align: center;" size=1 name=q5b> Cl<sub>2</sub>→<input style="font-size: 16px; text-align: center;" size=1 name=q5c> S + <input style="font-size: 16px; text-align: center;" size=1 name=q5d> HCl</p> | ||
| <p style="font-size:115%; text-align:center;"> <input onclick="check(5,'Reactions of Hydrogen sulphide',1,1,1,2,0,0,'H<sub>2</sub>S + Cl<sub>2</sub>','S + HCl');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(5,'Reactions of Hydrogen sulphide',1,1,1,2,0,0,'H<sub>2</sub>S + Cl<sub>2</sub>','S + 2H<sub>2</sub>O');" type="button" value="Show answer"> </p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer5">00:00</span> | ||
| <button type="button" onclick="startTimer('timer5')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer5')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer5')">Reset Timer</button> | ||
| </p> | ||
| <p></p> | ||
| 4.Hydrogen sulphide gas reacts with Lead (II) nitrate solution to form black precipitate of Lead (II) sulphide: | ||
|
|
||
| <p style="font-size:115%; text-align:center;"> <input style="font-size: 16px; text-align: center;" | ||
| size=1 name=q6a> H<sub>2</sub>S + <input style="font-size: 16px; text-align: center;" size=1 name=q6b> Pb(NO<sub>3</sub>)<sub>2</sub>→ <input style="font-size: 16px; text-align: center;" size=1 name=q6c> PbS + <input style="font-size: 16px; text-align: center;" size=1 name=q6d> HNO<sub>3</sub> </p> | ||
|
|
||
| <p style="font-size:115%; text-align:center;"> <input onclick="check(6,'Reactions of Hydrogen sulphide',1,1,1,2,0,0,'H<sub>2</sub>S + Pb(NO<sub>3</sub>)<sub>2</sub>','PbS + HNO<sub>3</sub>');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(6,'Reactions of Hydrogen sulphide',1,1,1,2,0,0,'H<sub>2</sub>S + Pb(NO<sub>3</sub>)<sub>2</sub>','PbS + 2HNO<sub>3</sub>');" type="button" value="Show answer"> </p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer6">00:00</span> | ||
| <button type="button" onclick="startTimer('timer6')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer6')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer6')">Reset Timer</button> | ||
| </p> | ||
| <p></p> | ||
| 5.Hydrogen sulphide gas reacts with Copper (II) sulphate solution to form brownish black precipitate of Copper(II) sulphide: | ||
|
|
||
| <p style="font-size:115%; text-align:center;"> <input style="font-size: 16px; text-align: center;" | ||
| size=1 name=q7a> H<sub>2</sub>S + <input style="font-size: 16px; text-align: center;" size=1 name=q7b> CuSO<sub>4</sub>→<input style="font-size: 16px; text-align: center;" size=1 name=q7c> PbS + <input style="font-size: 16px; text-align: center;" size=1 name=q7d> H<sub>2</sub>SO<sub>4</sub> </p> | ||
| <p style="font-size:115%; text-align:center;"> <input onclick="check(7,'Reactions of Hydrogen sulphide',1,1,1,1,0,0,'H<sub>2</sub>S + CuSO<sub>4</sub>','CuS + H<sub>2SO<sub>4</sub>');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(7,'Reactions of Hydrogen sulphide',1,1,1,1,0,0,'H<sub>2</sub>S + CuSO<sub>4</sub>','CuS + H<sub>2</sub>SO<sub>4</sub>');" type="button" value="Show answer"> </p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer7">00:00</span> | ||
| <button type="button" onclick="startTimer('timer7')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer7')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer7')">Reset Timer</button> | ||
| </p> | ||
| <p></p> | ||
| 6.Hydrogen sulphide gas reacts with Zinc sulphate solution to form white precipitate of Zinc sulphide: | ||
|
|
||
| <p style="font-size:115%; text-align:center;"> <input style="font-size: 16px; text-align: center;" | ||
| size=1 name=q8a> H<sub>2</sub>S + <input style="font-size: 16px; text-align: center;" size=1 name=q8b> ZnSO<sub>4</sub>→<input style="font-size: 16px; text-align: center" size=1 name=q8c> ZnS + <input style="font-size: 16px; text-align: center;" size=1 name=q8d> H<sub>2</sub>SO<sub>4</sub> </p> | ||
| <p style="font-size:115%; text-align:center;"> <input onclick="check(8,'Reactions of Hydrogen sulphide',1,1,1,1,0,0,'H<sub>2</sub>S + ZnSO<sub>4</sub>','ZnS + H<sub>2SO<sub>4</sub>');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(8,'Reactions of Hydrogen sulphide',1,1,1,1,0,0,'H<sub>2</sub>S + ZnSO<sub>4</sub>','ZnS + H<sub>2</sub>SO<sub>4</sub>');" type="button" value="Show answer"> </p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer8">00:00</span> | ||
| <button type="button" onclick="startTimer('timer8')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer8')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer8')">Reset Timer</button> | ||
| </p> | ||
| <p></p> | ||
| 7.Hydrogen sulphide gas reduces Sulphur dioxide gas into Sulphur: | ||
| <p> | ||
| <p style="font-size:115%; text-align:center;"> <input style="font-size: 16px; text-align: center;" | ||
| size=1 name=q9a> H<sub>2</sub>S + <input style="font-size: 16px; text-align: center;" size=1 name=q9b> SO<sub>2</sub>→<input style="font-size: 16px; text-align: center" size=1 name=q9c> S + <input style="font-size: 16px; text-align: center" size=1 name=q9d> H<sub>2</sub>O </p> | ||
| <p style="font-size:115%; text-align:center;"> <input onclick="check(9,'Reactions of Hydrogen sulphide',2,1,3,2,0,0,'H<sub>2</sub>S + SO<sub>2</sub>','S + H<sub>2</sub>O');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(9,'Reactions of Hydrogen sulphide',2,1,3,2,0,0,'2H<sub>2</sub>S + SO<sub>2</sub>','3S + 2H<sub>2</sub>O');" type="button" value="Show answer"> </p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer9">00:00</span> | ||
| <button type="button" onclick="startTimer('timer9')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer9')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer9')">Reset Timer</button> | ||
| </p> | ||
| <p ></p> | ||
| 8.Hydrogen sulphide gas reduces Iron(III)chloride to Iron(II)chloride: | ||
| <p style="font-size:115%; text-align:center;"><input style="font-size: 16px; text-align: center" | ||
| size=1 name=q10a> FeCl<sub>3</sub> + <input style="font-size: 16px; text-align:center" size=1 name=q10b> H<sub>2</sub>S → <input style="font-size: 16px; text-align: center" size=1 name=q10c> FeCl<sub>2</sub> + <input style="font-size:16px;text-align:center" size=1 name=q10d> HCl + <input style="font-size:16px;text-align:center" size=1 name=q10e> S </p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <input onclick="check(10,'Reactions of Hydrogen sulphide',2,1,2,2,1,0,'FeCl<sub>3</sub> + H<sub>2</sub>S ','FeCl<sub>2</sub> + HCl + S');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(10,'Reactions of Hydrogen sulphide',2,1,2,2,1,0,'2FeCl<sub>3</sub> + H<sub>2</sub>S ','2FeCl<sub>2</sub> + 2HCl + S');" type="button" value="Show answer"></p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer10">00:00</span> | ||
| <button type="button" onclick="startTimer('timer10')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer10')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer10')">Reset Timer</button> | ||
| </p> | ||
| <p ></p> | ||
|
|
||
| 9.Hydrogen sulphide gas reduces Nitric acid to reddish brown Nitrogen dioxide gas: | ||
|
|
||
| <p style="font-size:115%; text-align:center;"><input style="font-size: 16px; text-align: center" | ||
| size=1 name=q11a> HNO<sub>3</sub> + <input style="font-size: 16px; text-align:center" size=1 name=q11b> H<sub>2</sub>S → <input style="font-size: 16px; text-align: center" size=1 name=q11c> H<sub>2</sub>O + <input style="font-size:16px;text-align:center" size=1 name=q11d> NO<sub>2</sub> + <input style="font-size:16px;text-align:center" size=1 name=q11e> S </p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <input onclick="check(11,'Reactions of Hydrogen sulphide',2,1,2,2,1,0,'HNO<sub>3</sub> + H<sub>2</sub>S ','H<sub>2</sub>O + NO<sub>2</sub> + S');" type="button" value="Check answer"> <input type="reset" value="Reset"> <input onclick="show(11,'Reactions of Hydrogen sulphide',2,1,2,2,1,0,'2HNO<sub>3</sub> + H<sub>2</sub>S ','2H<sub>2</sub>O + 2NO<sub>2</sub> + S');" type="button" value="Show answer"></p> | ||
| <p style="font-size:115%; text-align:center;"> | ||
| <span style="color:blue;"><b>Time Taken:</b></span><span class="timer" id="timer11">00:00</span> | ||
| <button type="button" onclick="startTimer('timer11')">Start</button> | ||
| <button type="button" onclick="stopTimer('timer11')">Stop</button> | ||
| <button type="button" onclick="resetTimer('timer11')">Reset Timer</button> | ||
| </p> | ||
|
|
||
| <p></p> | ||
|
|
||
| <table class="center"> | ||
| <tr> | ||
| <td><a href="index.html">Home Page</a></td> | ||
| <td><a href="equ.html">Elementary Equations</a></td> | ||
| <td><a href="advanced.html">Advanced Equations</a></td> | ||
| <td><a href="assorted.html">Assorted Equations</a></td> | ||
| <td><a href="chlorine.html">Chlorine</a></td> | ||
| <td><a href="ammonia.html">Ammonia</a></td> | ||
| </tr> | ||
| <tr> | ||
| <td><a href="nitric-acid.html">Nitric Acid</a></td> | ||
| <td><a href="sulphur-dioxide.html">Sulphur Dioxide</a></td> | ||
| <td><a href="hydrogen-chloride.html">Hydrogen Chloride</a></td> | ||
| <td><a href="sulphuric-acid.html">Sulphuric Acid</a></td> | ||
| <td><a href="sodium-hydroxide.html">Sodium Hydroxide</a></td> | ||
| <td><a href="#top">TOP</a></td> | ||
| </tr> | ||
| </table> | ||
| </form> | ||
| <p></p> | ||
| <address> | ||
| For feedback, please e-mail to:<a href="mailto:[email protected]">[email protected]</a> | ||
| </address> </body> | ||
|
|
||
| </html> |