14. A student is practicing their pipetting technique. They pipette 4 different 10.0 mL samples of...
14. A student is practicing their pipetting technique. They pipette 4 different 10.0 mL samples of water into tared flasks. The samples have the following masses: 9.987 g, 9.566 g, 10.023 g and 9.973 g.
Calculate both the average and the standard deviation of the mass data.
If 10.0 mL of water is expected to have a mass of 9.998 g at 21.0 ∘ C, calculate the percent error associated with the student's pipetting technique.
The average is ["9.998 g", "10.000 g", "9.993 g", "9.887 g"]
The standard deviation is ± ["0.05 g", "0.5 g", "0.002 g", "0.2 g"]
The percent error is ["0.013%", "0.011%", "0.13%", "0.11%", "1.3%", "1.1%"]
Homework Answers
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14. A student is practicing their pipetting technique. They
pipette 4 different 10.0 mL samples of...
convert the grams into voulume with the density of water be at .997514 g/cm^3 at 23.1...
convert the grams into voulume with the density of water be at .997514 g/cm^3 at 23.1 celsuis find standard deviaton and percent standard deviation. Pipette Range: 200ul temperature 23.1 celsuis Pipette setting 200 ul mass (mg). Volume (ul) trial 1. 0.0810g. ? trial 2. 0.1190g. ? trial 3. 0.0962g. ? average. ? ? Standard dev. ? ? % relative standard dev. ? ? 2A.calculate the percent error between the pipette setting and the calculates volume delvered? 2.b If a percent...
A student needs to report experimental results where 1.00 mL water samples were measured using a...
A student needs to report experimental results where 1.00 mL water samples were measured using a pipet and the water masses were recorded as 1.0213 g, 1.0254 g, 0.9972 g, 0.9994 g. They calculated: Average (Mean) = 1.010825 g and Standard Deviation = 0.024586838 What should the reported value be? Select one: O a. (1.011 +0.02) 9 O b. (1.0 + 0.1) g O c. 1.0119 O d. (1.01 + 0.02) O e. (1.011 + 0.025) Clear my choice
The Calorimeter Constant is either 22.1J/C or perhaps the specific heat of water can be used?...
The Calorimeter Constant is either 22.1J/C or perhaps the
specific heat of water can be used? I calculated the answers using
both options and neither got me an answer close to the theoretical.
This is the given data so I'm not sure why I can't get an answer
similar.
PART B Data Analysis: 1. Calculate the heat of dissolving (AH.is) for each trial 2. Calculate the average, standard deviation, and relative percent standard deviation for your three trials 3. Calculate...
please help with no 3,4,5 and 6 Thanks 1. What is standard error? Measure of statistical...
please help with no 3,4,5 and 6
Thanks
1. What is standard error? Measure of statistical accuracy of an estimate, equal to the standard deviation of the theorental distribution of a large populanon of such estimates 2. What calculation is used to describe the variation in measurements. 3. In experiment 3.2. You will be measuring out 40ml of volume. How many times will you measure 40 ml? 4. What is the difference for each time you measure out 40ml? In...
Please use part C data to solve question 1. The theoretical value is -57.3kJ/mol to compare...
Please use part C data to solve question 1. The
theoretical value is -57.3kJ/mol to compare answer to. Calorimeter
constant is 22.1J/gC
PART C Data Analysis: 1. Calculate the heat of neutralization (AH.eu) for each trial 2. Calculate the average, standard deviation, and relative percent standard deviation for your three trials 3. Calculate the percent error based on your average and the theoretical value given in your data set. Data Trial 3 45.120 g 105.687 g Trial 1 Trial 2...
Data provided solve Q3 and Q4 please Table 2. Experimental Data Trial 1 Trial 2 Trial...
Data provided
solve Q3 and Q4 please
Table 2. Experimental Data Trial 1 Trial 2 Trial 3 30.13 Atmospheric Pressure (inches Hg) Mass Mg used (8) 0.039 0.025 0.011 39.58 25.89 11.47 Volume Hz gas generated (mL) Water Temperature (°C) 19.0 19.0 19.0 16.48 16.48 16.48 Partial Pressure Water Vapor (mm Hg; from Table 1) Difference in Water Levels (mm) 14.31cm 35.72cm 46.13cm Table 3. Molar Gas Volume and Ideal Gas Constant Calculations Trial 1 Trial 3 Trial 2 Trial...
titration lab report additional images of lab report QUESTIONS 1. A student masse 0878 of an...
titration lab report
additional images of lab report
QUESTIONS 1. A student masse 0878 of an unknown acid follows the titration procedure required to reach the endpoint on a 10.0 ml Calculate the molar mass of the acid. masses out 0.878 of die in 100 ml volume and titration procedure of Partsherds th the average volume of Non to reach the endpoint on 100 ml aliquot of the acid solution is 18.3 m . 2. In the vinegar titrations (Part...
All of the solutions used today can be washed down the sink with water. Solid waste...
All of the solutions used today can be washed down the sink with water. Solid waste should be thrown in the bin. Experimental This experiment is to be carried out individually NOTE: Failure to follow the correct procedures as explained in Skill 4 will result in wildly inaccurate results. The notes below do NOT give a full description of the techniques. 0 2 Standardisation of 0.1 M sodium hydroxide with the primary standard potassium hydrogenphthalate Part A (Al) In a...
Please answer all the blanks (volume if H2 and everything in analysis). TIA! Data 5 1...
Please answer all the blanks (volume if H2 and
everything in analysis). TIA!
Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
A student needs to report experimental results where 1.00 mL water samples were measured using a pipet and the water masses were recorded as 1.0213 g, 1.0254 g, 0.9972 g, 0.9994 g. They calculated: Average (Mean) = 1.010825 g and Standard Deviation = 0.024586838 What should the reported value be? Select one: O a. (1.011 +0.02) 9 O b. (1.0 + 0.1) g O c. 1.0119 O d. (1.01 + 0.02) O e. (1.011 + 0.025) Clear my choice
The Calorimeter Constant is either 22.1J/C or perhaps the
specific heat of water can be used? I calculated the answers using
both options and neither got me an answer close to the theoretical.
This is the given data so I'm not sure why I can't get an answer
similar.
PART B Data Analysis: 1. Calculate the heat of dissolving (AH.is) for each trial 2. Calculate the average, standard deviation, and relative percent standard deviation for your three trials 3. Calculate...
please help with no 3,4,5 and 6
Thanks
1. What is standard error? Measure of statistical accuracy of an estimate, equal to the standard deviation of the theorental distribution of a large populanon of such estimates 2. What calculation is used to describe the variation in measurements. 3. In experiment 3.2. You will be measuring out 40ml of volume. How many times will you measure 40 ml? 4. What is the difference for each time you measure out 40ml? In...
Please use part C data to solve question 1. The
theoretical value is -57.3kJ/mol to compare answer to. Calorimeter
constant is 22.1J/gC
PART C Data Analysis: 1. Calculate the heat of neutralization (AH.eu) for each trial 2. Calculate the average, standard deviation, and relative percent standard deviation for your three trials 3. Calculate the percent error based on your average and the theoretical value given in your data set. Data Trial 3 45.120 g 105.687 g Trial 1 Trial 2...
Data provided
solve Q3 and Q4 please
Table 2. Experimental Data Trial 1 Trial 2 Trial 3 30.13 Atmospheric Pressure (inches Hg) Mass Mg used (8) 0.039 0.025 0.011 39.58 25.89 11.47 Volume Hz gas generated (mL) Water Temperature (°C) 19.0 19.0 19.0 16.48 16.48 16.48 Partial Pressure Water Vapor (mm Hg; from Table 1) Difference in Water Levels (mm) 14.31cm 35.72cm 46.13cm Table 3. Molar Gas Volume and Ideal Gas Constant Calculations Trial 1 Trial 3 Trial 2 Trial...
titration lab report
additional images of lab report
QUESTIONS 1. A student masse 0878 of an unknown acid follows the titration procedure required to reach the endpoint on a 10.0 ml Calculate the molar mass of the acid. masses out 0.878 of die in 100 ml volume and titration procedure of Partsherds th the average volume of Non to reach the endpoint on 100 ml aliquot of the acid solution is 18.3 m . 2. In the vinegar titrations (Part...
All of the solutions used today can be washed down the sink with water. Solid waste should be thrown in the bin. Experimental This experiment is to be carried out individually NOTE: Failure to follow the correct procedures as explained in Skill 4 will result in wildly inaccurate results. The notes below do NOT give a full description of the techniques. 0 2 Standardisation of 0.1 M sodium hydroxide with the primary standard potassium hydrogenphthalate Part A (Al) In a...
Please answer all the blanks (volume if H2 and
everything in analysis). TIA!
Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
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