How many moles PVC pipe - Revision history

Bes: /* Calculations */

2020-09-02T12:42:17Z

Calculations

Bes: /* Experiment */

2020-09-02T12:32:08Z

Experiment

Bes: /* Setup */

2020-09-02T12:30:59Z

Setup

Bes: /* Calculations */

2020-09-02T12:29:57Z

Calculations

Bes: /* Experiment */

2020-09-02T12:28:47Z

Experiment

Bes: Created page with "This activity does a few things: :1) is a hands-on activity :2) provides an opportunity to use the Vernier LabQuest and pressure sensor :3) is sort of fun :4) setup is easy,..."

2020-09-02T11:58:58Z

Created page with "This activity does a few things: :1) is a hands-on activity :2) provides an opportunity to use the Vernier LabQuest and pressure sensor :3) is sort of fun :4) setup is easy,..."

New page

This activity does a few things:

:1) is a hands-on activity
:2) provides an opportunity to use the Vernier LabQuest and pressure sensor
:3) is sort of fun
:4) setup is easy, but data is pretty good

===Setup===
:- 3/4" PVC pipe ~ 4 foot per experiment
:- during COVID, we had only 4 groups (one person operated the LabQuest, one person "blew") collect data, others just processes the data.
:- LabQuest + pressure sensor
:- one-hole stopper with luer connector to pressure sensor

===Experiment===
:- with pressure sensor connected to the end of the PVC pipe, one student collected the data and one was the person who blew as hard as they could into the PVC pipe (quick blow, not extended - trying to hit a max pressure). This was repeated until the pressure exerted was relatively constant.
:- data was collected using in plot mode and the highest pressure could be read off the LabQuest.

===Calculations===
:- how much air did you blow into the pipe?
:- need to calculate the volume

← Older revision		Revision as of 12:42, 2 September 2020
Line 22:		Line 22:
	:- how much air did you blow into the pipe?		:- how much air did you blow into the pipe?
	:- need to calculate the volume of the PVC pipe...length and diameter.		:- need to calculate the volume of the PVC pipe...length and diameter.
		+
		+	===Expected Data===
		+	:- students exert pressures between 7 and 16 kPa inside the PVC pipe...independent of the length.
		+	:- using PV=nRT --> n=(PV)/(RT)...using 29 g/mol as an average molecular weight of air (can students calculate this?), 12 kPa ~ 0.001 moles ~ 35 mg of air.
		+	:- try not to treat this as a competition...higher is not better (??? not sure if this is true)

@@ Line 17: / Line 17: @@
 person who blow ''sharply'' into the PVC pipe (quick blow, not extended or sustained - trying to hit a max pressure). This was repeated until the pressure exerted was relatively constant.
 :- data was collected using in plot mode and the highest pressure could be read off the LabQuest.
 ===Calculations===
 :- how much air did you blow into the pipe?
 :- need to calculate the volume of the PVC pipe...length and diameter.

@@ Line 11: / Line 11: @@
 :- LabQuest + pressure sensor
 :- one-hole stopper with luer connector to pressure sensor
 ===Experiment===

@@ Line 13: / Line 13: @@
 ===Experiment===
-:- with pressure sensor connected to the end of the PVC pipe, one student collected the data and one was the person who blew as hard as they could into the PVC pipe (quick blow, not extended - trying to hit a max pressure). This was repeated until the pressure exerted was relatively constant.
+:- with pressure sensor connected via a flexible tube to the end of the PVC pipe, one student operates the LabQuest and the other
 :- data was collected using in plot mode and the highest pressure could be read off the LabQuest.