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Masteriza [31]
2 years ago
14

Directions Now that the lab is complete, it is time to write your lab report. The purpose of this guide is to help you write a c

lear and concise report that summarizes the lab you have just completed. The lab report is composed of three sections: Section I: Experimental Overview o Provide background information. o Include the hypothesis. o Summarize the procedure. Section II: Data and Analysis o Include graphs to display trends in the data. o Identify trends in the data. Section III: Conclusions o Identify if the hypothesis was supported or refuted. o Provide logical reasoning based on data. o Explain how the experiment could be improved. To help you write your lab report, you will first answer the eight questions listed below based on the experiment that you have just completed. Then you will use the answers to these questions to write the lab report that you will turn in to your teacher. You can upload your completed report with the upload tool in formats such as OpenOffice.org, Microsoft Word, or PDF. Alternatively, your teacher may ask you to turn in a paper copy of your report or use a web-based writing tool. Questions Section I: Experimental Overview 1. What is the purpose of the lab? 2. What is your hypothesis for this experiment? 3. What methods are you using to test this hypothesis? Outline the steps of the procedure in full sentences. Section II: Data and Analysis 4. What graphs would clearly represent the trends in your data? Your Student Guide includes information on which graphs to construct. Each graph should have the following items: a. An appropriate title b. Appropriate labels for each axis c. An appropriate scale for each axis d. The correct units for the data Complete a rough sketch of each graph. 5. What do the data in your graphs tell you? Explain in one or two sentences what trend is shown in each of your graphs. Section III: Conclusions 6. What do the data tell you about your hypothesis
Lab:Absorption and Radiation by Land and Water
Chemistry
1 answer:
Elza [17]2 years ago
6 0

Answer:

foot

Explanation:

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2) What group of elements are most likely to react with<br><br> helium? Explain why.
Luba_88 [7]

Answer:

Helium does not react with any element

Please find the explanation below

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7 0
3 years ago
How much heat is evolved in converting 1.00 mol of steam at 155.0 ∘c to ice at -50.0 ∘c? the heat capacity of steam is 2.01 j/(g
Ne4ueva [31]
When the specific heat capacity of the water is 4.18 J/g.°C so, we are going to use this formula to get the heat for cooling three  phases changes from steam to liquid and from liquid to ice (solid) :

when Q = M*C*ΔT 

Q is the heat in J

and M is the mass in gram = 1 mol H2O * 18 g/mol(molar mass) = 18 g

C is the specific heat J/g.°C

ΔT is the change in temperature

Q = Mw *[ ( Csteam * ΔTsteam)+(Cw*ΔTw) + (Cice  * ΔT ice)]

    = 18 g * [(2.01 * (155-100°C)) + (4.18 * (100-0°C)) + (2.09 * (0 - 55 °C))]

∴Q = 7444.8 J

and when we know that the heat of fusion for water = 334J/g

and heat of vaporization for water =  2260J/g


∴Q for the two phases changes = M * (2260+334) 

                                                      = 18 * (2260+334)

                                                      = 46692 J 

∴ Q total = 7444.8 + 46692 = 54136.8 J
5 0
3 years ago
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