In reviewing my blog, I noticed that my posts about the Mole have been a little scattered. FYI, they include:
1/10/14 2nd entry (which includes a Moletown map)
10/20/14 Celebrating Mole Day
10/23/14 Mole Labs in My Book
A pretty common lab at the introductory level is the generation of hydrogen gas by reacting magnesium metal (most likely in ribbon form in your department) with hydrochloric acid. The reaction is as follows:
Mg (s) + 2 HCl (aq) ---> MgCl2 (aq) + H2 (g)
Here is a brief demonstration of this method of generating hydrogen gas:
1/10/14 2nd entry (which includes a Moletown map)
10/20/14 Celebrating Mole Day
10/23/14 Mole Labs in My Book
A pretty common lab at the introductory level is the generation of hydrogen gas by reacting magnesium metal (most likely in ribbon form in your department) with hydrochloric acid. The reaction is as follows:
Mg (s) + 2 HCl (aq) ---> MgCl2 (aq) + H2 (g)
Here is a brief demonstration of this method of generating hydrogen gas:
Remember to wear goggles during the lab and cleanup! I have completed this lab with a one-hole stopper where the copper wire was inserted through the stopper. DO NOT use a solid stopper because the gas pressure could build up, a dangerous high pressure system.
Here are a few lab handouts for the Molar Volume of a Gas using magnesium and hydrochloric acid. Most of the labs are more than 2 pages -- it's difficult to find a shorter version of this lab:
http://www.gru.edu/colleges/scimath/chemistryandphysics/documents/molarvolumeofgas.pdf
https://www.asdk12.org/staff/roach_heather/HOMEWORK/120145_Molar_Volume_of_Gas_Lab.pdf
This handout contains a table of water's vapor pressure at various temperatures:
https://sp.eths.k12.il.us/weinerj/2chemphys/UNIT%20FILES/Unit%207%20%20Kinetic%20Theory%20and%20Gases/LAB%20EXPERIMENTAL%20DETERMINATION%20OF%20THE%20MOLAR%20VOLUME%20OF%20A%20GAS%20revised.pdf
Although several pages, this is a good overview with a data table:
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=50&ved=0CFIQFjAJOCg&url=http%3A%2F%2Fwww.smusd.org%2Fsite%2Fhandlers%2Ffiledownload.ashx%3Fmoduleinstanceid%3D4199%26dataid%3D8288%26FileName%3DThe%2520Gas%2520Laws%2520Lab%25202014.pdf&ei=kcZbVNqCOsGqoQTEpYLoDg&usg=AFQjCNHxmnl5x5oglTpa9NyYHWtH_DZhzA
This Flinn Scientific handout is long, but it could be a useful reference for the teacher:
http://www.flinnsci.com/media/960405/ap_chem_3A.pdf
Check out the Topic List to help you to find past Blog entries. I hope it helps!
Buy my lab book "Chemistry on a Budget" -- it is available for $20 at amazon.com or $23 at lulu.com:
http://www.amazon.com/Chemistry-Budget-Marjorie-R-Heesemann/dp/0578129159/ref=sr_1_1?s=books&ie=UTF8&qid=1389410170&sr=1-1&keywords=chemistry+on+a+budget
http://www.lulu.com/shop/marjorie-r-heesemann/chemistry-on-a-budget/paperback/product-21217600.html
This book contains 13 labs using consumable materials purchased from local stores. There are two versions of each lab, one with a ten-question conclusion and one with directions for a full lab report. This way the teacher has the option! Each lab is two pages to allow for one two-sided handout.
Have a good weekend!
Here are a few lab handouts for the Molar Volume of a Gas using magnesium and hydrochloric acid. Most of the labs are more than 2 pages -- it's difficult to find a shorter version of this lab:
http://www.gru.edu/colleges/scimath/chemistryandphysics/documents/molarvolumeofgas.pdf
https://www.asdk12.org/staff/roach_heather/HOMEWORK/120145_Molar_Volume_of_Gas_Lab.pdf
This handout contains a table of water's vapor pressure at various temperatures:
https://sp.eths.k12.il.us/weinerj/2chemphys/UNIT%20FILES/Unit%207%20%20Kinetic%20Theory%20and%20Gases/LAB%20EXPERIMENTAL%20DETERMINATION%20OF%20THE%20MOLAR%20VOLUME%20OF%20A%20GAS%20revised.pdf
Although several pages, this is a good overview with a data table:
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=50&ved=0CFIQFjAJOCg&url=http%3A%2F%2Fwww.smusd.org%2Fsite%2Fhandlers%2Ffiledownload.ashx%3Fmoduleinstanceid%3D4199%26dataid%3D8288%26FileName%3DThe%2520Gas%2520Laws%2520Lab%25202014.pdf&ei=kcZbVNqCOsGqoQTEpYLoDg&usg=AFQjCNHxmnl5x5oglTpa9NyYHWtH_DZhzA
This Flinn Scientific handout is long, but it could be a useful reference for the teacher:
http://www.flinnsci.com/media/960405/ap_chem_3A.pdf
Check out the Topic List to help you to find past Blog entries. I hope it helps!
Buy my lab book "Chemistry on a Budget" -- it is available for $20 at amazon.com or $23 at lulu.com:
http://www.amazon.com/Chemistry-Budget-Marjorie-R-Heesemann/dp/0578129159/ref=sr_1_1?s=books&ie=UTF8&qid=1389410170&sr=1-1&keywords=chemistry+on+a+budget
http://www.lulu.com/shop/marjorie-r-heesemann/chemistry-on-a-budget/paperback/product-21217600.html
This book contains 13 labs using consumable materials purchased from local stores. There are two versions of each lab, one with a ten-question conclusion and one with directions for a full lab report. This way the teacher has the option! Each lab is two pages to allow for one two-sided handout.
Have a good weekend!
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