Howard University Hyperbaric Chambers in Healing Wounds Worksheet

Topic:Application of Hyperbaric Chambers in
Healing Wounds
Research Project Instructions
• 1st page is a cover page (include your name and
date)
• 5 paragraphs in length.
• Between 2 and 3 pages (not including the cover
page).
• First paragraph is introduction.
• Paragraphs 2-4 are for description and main body
of the paper.
• 5th paragraph is a summary/conclusion paragraph.
• 12-point font.
• Please do not use more than 1.5-line space.
• Citations should be in ACS bibliographic format.
Date
Name
Section
Team
Instructor
REPORT SHEET
Soluble and Insoluble Salts
LAB
9
A. Soluble and Insoluble Salts
4. Compounds in
Solutions
4.
a
AgNO3 + NaCl
4.
b
AgNO3 + Na 2SO4
4.
c
AgNO3 + Na 3PO4
4.
d
Ca(NO3 )2 + NaCl
4.
e
Ca(NO3 )2 + Na 2SO4
4.
f
Ca(NO3 )2 + Na 3PO4
1. Ions
2. Observations 3. Formula of
Insoluble Salt
(if any)
4.
a
__AgCl(s)
__AgNO3(aq) +__NaCl(aq)®
__NaNO3(aq)
+
Ionic equation
Net ionic equation
4.
b
+
AgNO3(aq) + Na2SO4(aq) ®
Ionic equation
Net ionic equation
4.
c
_AgNO
3(aq) +
__ Na PO
3
4(aq)
®
_Ag3PO4(s)
+
_NaNO3(aq)
Ionic equation
Net ionic equation
4.
d
_Ca(NO3)2(aq) + _NaCl(aq) ®
+
Ionic equation
Net ionic equation
4.
e
_Ca(NO3)2(aq) + _Na2SO4 (aq) ®
_CaSO4(s)
+
_ NaNO3(aq)
_Ca3(PO4)2(s)
+
_NaNO3(aq)
Ionic equation
Net ionic equation
4.
f
_Ca(NO3)2(aq) + _Na3PO4(aq) ®
Ionic equation
Net ionic equation
B. Solubility of KNO 3
1. Mass of
2. Mass of
4. Mass of 3. Temperature 5. Solubility
Container
Container + KNO3
When Crystals (g KNO3 /
Appear
100 mL H2O)
KNO3
Tared
*
3.00g
38.0°C
*
*
4.00g
46.0°C
*
*
5.00g
55.0°C
*
*
6.00g
65.0°C
*
*
7.00g
71.0°C
6. Graph for the solubility of KNO3 vs. temperature (°C)
Q2 According to your graph, what is the effect of increasing temperature on the
solubility of KNO3?
Questions and Problems
Q3 According to your graph, what is the solubility of KNO3 at 65°C?
Q4 According to your graph, at what temperature does KNO3 have a solubility of
120 g/100 mL?
Q5 The solubility of sucrose (common table sugar) at 70°C is 320 g/100 g H2O.
a. How much sucrose can dissolve in 200 g of water at 70°C?
b. Will 400 g of sucrose dissolve in a teapot that contains 200 g of water at 70°C?
Explain.
llDate
Name
Section
Team
Instructor
Pre-Lab Study Questions 9
1. What is an insoluble salt?
2. Are salts more soluble in water at higher temperature or lower temperature?
3. Indicate whether each of the following salts is soluble or insoluble in water and give a
reason.
Salt
Soluble or
Insoluble in
Water?
Reason
a. BaSO4
b. AgBr
c. Pb(NO3 )2
d. CaCO3
e. Na3PO4
4. For each combination of solutions that produces an insoluble salt, write the net ionic
equation for the formation of the insoluble salt. If no reaction occurs, write NR.
Solutions
a. NaCl(aq) + Pb(NO3 )2 (aq) ¾¾
®
b. (NH4 )3PO4 (aq) + Pb(NO3 )2 (aq) ¾¾
®
c. CaCl2 (aq) + Na 2CO3 (aq) ¾¾
®
d. AgNO3 (aq) + K 2S(aq) ¾¾
®
Net Ionic Equation Products