i need someone who is good in chemistry to do my presentation

hello i need someone to create a power point and write the text for my presentation. my presentation is about the experment that i did my chemsitry lab. use the results, the project guide, to write the presentation and to create the power point. you can write the presentation in a word file or in the presentation rubric file, attached below. and please just use key words and short sentences in the power point. if you can do it just tell me so i can look for someone else please. this presentation is so important.
lab_results.pdf

p5_oral_presentation_rubric.pdf

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project_5_guide.pdf

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CHEM 151
P5 Oral Presentation Rubric v4.1 | 1
Project 5
Group Members:
1.
2.
Group Number:
1.
3.
Study Design: 15 points
Inadequate = < 9 ? ? ? ? ? ? ? ? ? 2. Satisfactory = 9 - 10 Good = 11 - 12 Excellent = 13 - 14 Outstanding = 15 Clearly states the overall goal of the study. Presents the paint properties under study. Clearly states the independent variables (defined formulation variations) specifying the formulation changes and their increments. Explains the rationale for selecting the above formulation changes and their increments. Clearly communicates the dependent variables (paint properties measured) and the testing design. Explains the reasoning behind the test design; including positive and negative controls. Integrates the properties under study with the selected formulations and testing, and how this meets the overall goal. Experimental design appears to be without critical flaws. Font size/type easy to read. Amount of text kept to a minimum for improved comprehension of the key points. Procedure: 5 points Inadequate = < 3.5 ? ? ? 3. Satisfactory = 3.5 Good = 4 Excellent = 4.5 Outstanding = 5 Gives brief overview of the major procedural steps (pigment synthesis, formulation and testing). Visual aids assist the audience in their understanding of the experimental protocol. Font size/type easy to read. Amount of text kept to a minimum for improved comprehension of the key points. Presentation of the Results: 5 points Inadequate = < 3.5 ? ? ? ? 4. Satisfactory = 3.5 Good = 4 Excellent = 4.5 Outstanding = 5 Data and observations (results) are complete, but are distilled down to the important facts. Data and observations are presented clearly and concisely in tables and/or graphs. Figures and tables are easy to read and interpret, especially from a distance. Figures and tables are correctly titled and labeled. Correct sig figs and units. Analysis and Prediction: 15 points Inadequate = < 9 ? ? ? ? ? ? 5. Satisfactory = 9 - 10 Good = 11 - 12 Excellent = 13 - 14 Outstanding = 15 Well organized, logical flow. Interpretation of the observations and data (tables, graphs, etc.). o Interprets the results fully, but does not go beyond what the data supports. Incorporates the positive and negative controls. o Identifies major trends in the data/observations. o Clearly states what can be concluded. Addresses the accuracy/reliability of the results. Any unphysical results (results that are in conflict with well accepted scientific theory and/or established scientific facts) are identified and discussed. Cost analysis of paint formulations correctly performed and well presented. Integrates the data/observation interpretation, reliability/accuracy of the results and the cost analysis to predict the best formulation that optimizes the desired properties while minimizing cost. Presentation Delivery: 10 points Inadequate = < 7 ? ? ? ? ? ? ? Satisfactory = 7 Good = 8 Excellent = 9 Outstanding = 10 Correct use of terminology and concepts. Group members carried themselves in a professional manner. NO off-color jokes or remarks or inappropriate comments or references. Oral presentation was divided equitably amongst the group members. Presentation fell within the amount of time allotted. Spoke loudly and clearly. Interacted well with the visual aids by pointing to key features as they were described. Maintained eye contact with the audience. Miscellaneous Comments: P5 Oral Rubric v4.1 MY© 2017 10-31-17 Chem Think Technical Press CBC UofA Group Grade = 50 CHEM 151 Project 5 v6.4 | 1 How do we design, prepare and evaluate materials? YOU MUST CAREFULLY READ THIS GUIDE BEFORE LAB. If you are in the habit of not carefully reading the lab guides beforehand and believe you can “figure it all out” in lab – well, you’re going to have a rude awakening. Project 5 is a research project. Preparation outside of lab is critical to success. You don’t want to waste limited lab time making needless mistakes and/or trying to figure out what you are doing. Remember, you want to have a solid project to present in the third session. That’s not going to happen without some thought and careful planning. There are many details in this guide to help you succeed, but the information is of little benefit if you don’t read it with care and reflection. You will be in charge of designing and implementing the final multi-session project for your general chemistry lab. This investigation combines the central topic of the last lecture unit, “chemical reactions,” with material from Unit 3. Paint is a complex mixture of different substances each of which imparts desired properties to the paint. The defined proportion of these substances are referred to as the formulation. The substances comprising a paint formulation can be grouped into four major categories: pigment, vehicle, solvent and additives. Pigments are usually granular solids that give color to the paint. By their nature pigments are intensely colored, so relatively small amounts are present in the paint formulation. On the other hand, the vehicle (or binder) makes up the bulk of paint. Vehicles are the film-forming component that controls much of the paint’s physical properties. Polymers and various oils typically serve as vehicles. The solvent (or diluent) is a volatile substance that helps solubilize the vehicle and intersperse the pigments and any additives. Solvents can adjust various physical attributes of the paint such as viscosity, stability and drying time. Finally, some paint formulations employ additives, such as fillers or hiding (opaque) agents. Fillers, such as talcum powder, can be used to increase volume and thicken the paint, and/or impart texture to the dried paint. Hiding agents provide a neutral white “base” for the pigment and as the name implies, plays a role in the hiding or covering power of the paint. Titanium (IV) oxide is a common hiding agent. P5-1 The Problem Assume you are a R&D chemist at Art Paint Inc., a specialty paint manufacturing company. The company seeks to distinguish its brand by offering artist paints with superior performance and/or novel properties at competitive prices. Your present assignment is to develop paint formulations that give improved performance and/or expand the range of possible art applications. You will be assigned a pigment to prepare and work with, but have freedom to explore different formulations and properties – so long as the resulting paint has a potential market and the projected material costs permit competitive pricing. In a few P5 v6.4 MY © 2017 10-31-17 Chem Think Technical Press CBC UofA CHEM 151 Project 5 v6.4 | 2 days you will give an oral presentation of your progress to upper management (your TA). This study will involve: ? ? ? ? Deciding on the properties to explore and how the formulation affects the properties. Preparing 3.0 g of inorganic pigment. This pigment will be used to prepare all of the paint formulation samples. (You will work on the milli-scale, so 3.0 g should be sufficient.) Preparing milli-scale “proof of concept” formulations that can be conveniently and economically tested. Designing tests or a set of tests to evaluate your milli-scale paint formulations. You want to identify a trend or trends that can be used to predict the behavior beyond the range of conditions tested. To accomplish this, you must put some thought into what variable or variables are relevant, how they can be explored, and the testing protocol. Note the fine interplay between design, preparation and evaluation. Use the trends to make an informed recommendation as to the best formulation that gives the desired properties for the lowest cost. P5-2 Available Resources Aside from the contents of your locker, you will also have hotplate stirrers, centrifuges, electronic scales and battery powered digital thermometers in the lab. Additional glassware, plastic-ware (vials, centrifuge tubes, etc.), mortar & pestles and set-ups (such as vacuum filtration gear) are available on a check-out basis from the prep-room. Cotton swabs will also be available and can serve as crude paint brushes. The following set of chemical substances will be in the lab: Table P5-1. Chemical Resources for the Project 5 Paint Formulation Inorganic Salts (for pigment preparation) Ca(NO3)2, Calcium nitrate solution (1.0 M) $71.41/L Solvents (for the formulation) Hexane (l) $53.30/L Co(NO3)2, Cobalt (II) nitrate solution (1.0 M) $337.01/L Ethyl acetate (l) $26.87/L Cu(NO3)2, Copper (II) nitrate solution (1.0 M) $200.77/L Acetone (l) $11.38/L K2CO3, Potassium carbonate (s) $34.80/kg Isopropanol (l) $37.30/L Ethanol (l) $37.17/L $34.45/L Other Inorganic Solids (formulation additives) Talc (talcum powder), Mg3Si4O10(OH)2 (s) $59.50/kg Methanol (l) TiO2, Titanium (IV) oxide (s) $56.70/kg NANOpure™ water (ultrapure water) $0.89/L Low-Volatility, High-Viscosity Solvents (for the formulation) Vehicles (for the formulation) Soybean oil (l) $2.38/L Ethylene glycol (1,2-ethanediol) (l) Polyvinyl acetate – “Elmer’s Glue” (l) $4.21/L Glycerol (1,2,3-propanetriol) (l) P5 v6.4 MY © 2017 10-31-17 Chem Think Technical Press CBC UofA $72.62/L $187.88/L CHEM 151 Project 5 v6.4 | 3 Your research project should be based entirely on the above listed chemical resources. You are expected to supply items such as paper, canvas, cloth, wood, plastic, drywall and other test surfaces for evaluating your paint formulations. Any material brought into the lab must be non-toxic, chemically inert and fit into your assigned project locker; oversized and/or hazardous objects are not permitted in lab. P5-3 Three Sessions Project 5 has three sessions: Session 1. ? The first hour of lab will concern preparing your pigment and exploring qualitatively the Project 5 formulation resources. You should arrive with an idea about what you would like to try or test. For example, if you have several vehicle-solvent combinations in mind, but are not sure which are practical, you can set-up 1-dram vials (˜ 3.7 mL maximum capacity per vial) and try various combinations to answer your question. Thus, the purpose of this exploration is to familiarize yourself with some of the material properties so the proposal writing will be more informed. Frequently, materials just don’t behave as anticipated – hence, this serves as a very important chance to discover problems before they waste valuable time in session 2. (This exploration is very similar in spirit to the one conducted in Task 1 of Project 3.) ? The remainder of session 1 will concern writing the P5 proposal (P5 In-Lab Worksheet). Please
use the P5 In-Lab Worksheet to guide your efforts. The P5 proposal is a group effort. You and
your lab partner will submit a single copy and the grade awarded to that single submission will
apply to both of you. The P5 In-Lab Worksheet is due by the end of lab.
Session 2.
?
Your instructor will return your group proposal (P5 In-Lab Worksheet) at the beginning of the
session. If necessary, you and your lab partner are to modify/adjust your proposal based on the
feedback*. You will then implement the proposal. You have virtually the entire period. There is
NO in-lab worksheet for session 2.
*Revised proposals are not turned in. But if the original proposal suffers from significant deficiencies the reworked
proposal should be presented to your TA before initiating any lab work. Your lab instructor will then briefly review
this revised proposal in lab. If it is still deemed inadequate or unsuitable, you and your lab partner will be required
to further rework the proposal in lab. Once your instructor has approved of the final proposal, lab work can
commence.
Session 3.
?
Session 3 is the group oral presentation. Please use the P5 Oral Presentation Rubric to guide
the building of your PowerPoint presentation – as this is the rubric your instructor will use to
evaluate the work. The oral presentation length should be 7 minutes; that is, your group has a
seven minute presentation time limit. Your audience will be your TA and fellow students in the
lab section.
P5 v6.4 MY © 2017 10-31-17 Chem Think Technical Press CBC UofA
CHEM 151
Project 5 v6.4 | 4
P5-4 Research Project – Study Design Considerations
Remember, this research project involves:
?
Deciding on the properties to explore and how the formulation affects the properties.
?
Preparing at least 3.0 g of an assigned inorganic pigment. This pigment will be used to prepare
all the paint formations. You will be working milli-scale, so 3.0 g should be sufficient.
?
Preparing milli-scale “proof of concept” formulations (defined combinations of pigment,
vehicle, solvent, and possibly additives) that can be conveniently and economically tested.
?
Designing tests or a set of tests to evaluate your milli-scale paint formulations for the properties
you have decided to explore. You need to test every formulation prepared, so time is an issue
(the tests should be time efficient and reproducible). Think about a graph or set of graphs as
the end result.
You ABSOLUTELY MUST identify a trend or trends that can be used to predict the behavior beyond
the conditions tested. To accomplish this:
?
You should go quantitative, or if you are evaluating the formulations qualitatively, you must
devise a scoring, relative scaling, or ranking that permits building a graphical relationship.
?
You need to identify the variable or variables that are relevant and how they can be explored
while considering your testing protocol. Obviously, what you can test for restricts what you can
study.
?
You will need to prepare MANY small milli-scale formulations and devise tests that work on the
milli-scale level to have any hope of building a graphical relationship that clearly reveals trend(s)
and has good predictive power.
You will use the trends to make an informed recommendation as to the best formulation
that gives the desired properties while also considering the cost. In other words, in your
final presentation a cost analysis should be part of the recommendation for the best
formulation.
P5-5 Project Proposal
You will need to build a proposal. This will be done in-lab with your lab partner in the first session of
Project 5. You and your lab partner will submit a single proposal and the grade awarded to that single
submission will apply to both of you. Please use the P5 In-Lab Worksheet (D2L)
This proposal has three main sections:
Pigment Preparation – Study Design Part 1
The overall idea is to take two water soluble ionic compounds (salts) as independent solutions, that
P5 v6.4 MY © 2017 10-31-17 Chem Think Technical Press CBC UofA
CHEM 151
Project 5 v6.4 | 5
when combined, react to form an insoluble ionic compound (another salt) that precipitates out. The
precipitated ionic compound is then isolated by centrifugation or suction (vacuum) filtration. This
isolated insoluble ionic compound is your pigment.
The aqueous (water) solubility of ionic compounds is covered in Module 3 of Unit 3 (Characterizing
Ionic Networks). You should be able to understand the ideas presented in pages 212 through 220
(page 220 features an exercise similar to what you will be doing in this project). Please carefully read
this material.
Your group will be assigned an inorganic pigment for the project. All the P5 inorganic pigments are
ionic compounds (salts), composed of a metal cation and carbonate (CO32-) or carbonate and
hydroxide (OH-) as the anion(s). Prepared solutions of the metal cations will be provided (see Table
P5-1 under Inorganic Salts).
You will note these are nitrate salts which are all water soluble, and hence easily form aqueous
solutions in the 1 M concentration range. You will react the appropriate 1.0 M metal nitrate solution
with a 1.0 M potassium carbonate (K2CO3) solution to form the assigned pigment. As Table P5-1
indicates, K2CO3 is offered strictly as a solid – not a solution. Thus, you will need to prepare a K2CO3
solution. In particular, for this project your group will need to prepare 30 mL of a 1.0 M solution of
K2CO3.
Thus, to synthesize your assigned pigment, you must select the appropriate 1.0 M metal nitrate
solution to provide the correct divalent metal cation for your assigned pigment, and combine this
with the 1.0 M K2CO3 solution prepared by your group to form an insoluble salt of the metal which
should precipitate. We can generalize this as follows:
M(NO3)2 (aq) + K2CO3 (aq) ? MCO3 (s) + 2 KNO3 (aq)
In which M is a divalent metal cation. Note, from your understanding of the aqueous solubility of
ionic compounds, KNO3 being a potassium salt should be decidedly water soluble. This is important,
for we seek to isolate the pigment (MCO3) as an insoluble salt. If KNO3 was also insoluble, then both
MCO3 and KNO3 would precipitate together rendering the isolation of MCO3 a far more difficult
problem.
You will need a balanced chemical equation for the proposed pigment synthesis. Why? Because the
pigment preparation procedure must specify the volume (mL) of reactant solutions (the 1.0 M
inorganic salt solutions) and the specified amounts should be reasonable to the synthesis scale. To
do this, you must calculate the volume of each inorganic salt solution to combine so that 3.0 g of
pigment results.
The three balanced chemical equations for the three possible pigments are presented on page 6.
Again, your TA will assigned your group to one of these. (“aq” means aqueous, meaning the substance
is dissolved in water to give a solution)
P5 v6.4 MY © 2017 10-31-17 Chem Think Technical Press CBC UofA
CHEM 151
Project 5 v6.4 | 6
? Formation of Calcium Carbonate (CaCO3):
Ca(NO3)2 (aq) + K2CO3 (aq) ? CaCO3 (s) + 2 KNO3 (aq)
? Formation of Cobalt (II) Carbonate (CoCO3):
Co(NO3)2 (aq) + K2CO3 (aq) ? CoCO3 (s) + 2 KNO3 (aq)
? Formation of Copper (II) Carbonate Hydroxide (Cu2(OH)2CO3):
2 Cu(NO3)2 (aq) + 2 K2CO3 (aq) + H2O (l) ? Cu2(OH)2CO3 (s) + 4 KNO3 (aq) + CO2 (g)
Note: this reaction is more complex as the copper ion (Cu2+) has great affinity for hydroxide (OH–) and so
further drives the formation of OH– from water which through a coupled mechanism releases carbon
dioxide (CO2). A complex involving two copper (II) ions, two hydroxide anions and one carbonate anion
results: Cu2(OH)2CO3, commonly known as malachite.
You task is to employ the appropriate balanced equation to calculate the volume of assigned 1.0 M
metal nitrate solution and volume of 1.0 M K2CO3 (that your group prepared), so that when combined
3.0 g of pigment results. Table P5-2 presents a selection of molar mass values that may be helpful in
your calculations.
Table P5-2. Molar Masses for Various Compounds
Compound
Molar Mass
Compound
Molar Mass
Ca(NO3)2
164.09 g/mol
CaCO3
100.09 g/mol
Co(NO3)2
182.94 g/mol
CoCO3
118.94 g/mol
Cu(NO3)2
187.56 g/mol
Cu2(OH)2CO3
221.12 g/mol
K2CO3
138.20 g/mol
H2O
18.01 g/mol
KNO3
101.10 g/mol
CO2
44.01 g/mol
Overall, the pigment preparation procedure must be sufficiently detailed so that someone with basic
lab skills can successfully perform the preparation. A procedure in outline form is quite acceptable.
Proposed Paint Formulations – Study Design Part 2
In this part of the proposal, you are to state the different paint formulations you intend to prepare
and how you will prepare them. First of all, you need to be clear what property or properties are
being studied, because the amount and type of vehicle, solvent and additives directly follows from
the p …
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