You determined experimentally the density of a solution in triplicate. Considering the results what is the standard deviation of your results? Answer your question with the correct number of significant figures. The answer should be in units of g/mL Trial 1: 0.9997 g/mL Trial 2: 0.9985 g/mL Trial 3: 0.9987 g/mL

You determined experimentally the density of a solution in triplicate. Considering the results what is the standard deviation of your results? Answer your question with the correct number of significant figures. The answer should be in units of g/mL Trial 1: 0.9997 g/mL Trial 2: 0.9985 g/mL Trial 3: 0.9987 g/mL

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter3: Measurement And Chemical Calculations

Section: Chapter Questions

Problem 128E: In Active Example 3-29 you calculated that you would have to work six weeks to earn enough money to...

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26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about 36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons. Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving assumptions you make in this calculation rea L-36 Tile fiDw ill it cost2 The density of gold is 27l An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50
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DO both with explanation do not given incomplete answer do both asap within 30 min
Below is a simple set of weights obtained while immersing potato slices in various sugar solutions over 30 minutes. I need help calculating all of this for a 30 min period a. For each solution, calculate the rate of weight change over this 30-minute period. Show your work in the space below. Once you calculate these rates - fill in the blanks below and then add these answers to your Canvas exam. Write your answer in standard notation and use 3 digits past the decimal point - e.g. 0.005, 0.030. (Note that the last zero in an answer is considered to be a digit). Show your work in the space below. 0.0 M sucrose = _______ _____________ g/min 0.4 M sucrose = _______ ____________ g/min 0.6 M sucrose = ________ ____________ g/min 0.8 M sucrose = ____________________ g/min 1.0 M sucrose = ________ __________ g/min Using the osmosis data in the question above, determine the percent weight change for each sucrose solution and fill in the blanks given below and then add these answers to…
Part B Before investigating the scene, the technician must dilute the luminol solution to a concentration of 8.00x102 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray? Express your answer with the appropriate units. • View Available Hint(s) Tempjetes Symbols undo redo Teset keyboard shortcuts Help Value Units moles of luminol =
Hello, I hope you are doing well on this fine day. For the following quetion please read carefully the question and instruction. PLEASE ANSWER QUESTION IN 20 MINTUES NOT MORE PLEASE AND THANK YOU. If you do answer the question correctly and post it in the next 15 minutes, NO NEED TO SHOW THE WORK, I JUST WOULD LIKE THE CORRECT ANSWER AS SOON AS POSSIBLE. I will write a wonderful and generous feedback/review/rating about you. 2.077 g of salicylic acid is used in the reaction to synthesize ethyl salicylate, what is the minimum amount of ethanol in mL necessary to convert all of the salicylic acid to ethyl salicylate? The molecular weight of salicylic acid is 138.12 g/mol, the molecular weight of ethyl salicylate is 166.176 g/mol. The molecular weight of ethanol is 46.069 g/mol and its density is 0.789 g/mL.
THE ANSWER IS NOT H2BO3^- I submitted that and it says it is incorrect. Please help, thanks!
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If you have to analyze trance benzene and iron concentration in a sediment sample. You have a grinding the sample using ceramic tools in order to break down the sample to small particles. For which analytethe grinding process will cause more error? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. To b с d e Iron's analytical result will have larger positive error Benzene's analytical result will have larger positive error Iron's analytical result will have larger negative error Benzene's analytical result will have larger negative error The grinding process will not cause any error of analytical results for both analytes
purse Home n/course.html?courseld%3D15769386&HepID3D169f9f4bdc9f2df8dc5b7368af32865e#10001 e Home troduction to MasteringChemistry 2 of 15 roduction to Numeric Answers Part B When entering large numbers in the answer box, do not use commas. For example, enter 1276400 for the number 1,276,400. Do not enter 1, 276, 400. If you accidentally enter commas, you will receive feedback as a reminder. Answer the following question by typing the numeric answer into the answer box. What is the sum of 9260 and 3240? Express your answer numerically to at least three significant figures. • View Available Hint(s) Eν ΑΣφ sum = Submit Scientific notation You may want to enter 367.000 000 in scientific notatinn as 3 67 x 10° There are twn ways to do this P Pearson Dormicdonc Contact l. Copuriaht 0207 0 Doarcen Education Inc Alrightr rorornd Armr 12:58 hp