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Esay recorded the following data for Avogadro's number experiment. He concluded that the average calibration number...
do you know what i did wrong on this PART I: Calibration of a Dropper Pipet...
do you know what i did wrong on this
PART I: Calibration of a Dropper Pipet Trial 1 58 Trial 2.62 1 Number of drops in 1-ml Trial 603 el 2. Average value PART II: Number of Molecules in the Monolayer 2.45cm 4.ssim GO 1 Diameter of the monolayer, cm 2. Number of drops to form monolayer 5+2= 3. Area of the monolayer, cm? 4. Concentration of the stearic acid, g/mL 5. Volume of the stearic acid in the monolayer,...
A calibrated pipet (95 drops/mL) delivers 12 drops of stearic acid solution. (1.5x10^-4 g/mL) to give...
A calibrated pipet (95 drops/mL) delivers 12 drops of stearic acid solution. (1.5x10^-4 g/mL) to give a monolayer with a diameter of 12.5 cm. Calculate the surface area of tge monolayer, the moles of stearic acid (284 g/mol) in the monolayer, the number of stearic acid molecules in the monolayer, and the apparent volume & cross-sectional area occupied by each molecule.
A Fatty Acid Monolayer Calculations The number of drops per mL (drops/mL) can be calculated from...
A Fatty Acid Monolayer Calculations The number of drops per mL (drops/mL) can be calculated from thre measured number of drops per gram of Hexane (drops/g), using the density of Hexane (0.659 g/mL) as a conversion factor from grams to mL. Calculate this using the following information. Area(A)=1.227*10^16 Concentration of Stearic Acid/Hexane Solution: 7.01* 10^-5 Mass of weighing bottle with lid= 18.028g Mass of weighing bottle, lid and solution= 18.463 Solution Mass: 0.435 I'm getting mL per drop, and can't...
Part A Part complete Using your graduated cylinder, you calibrate the pipet you will be using...
Part A Part complete Using your graduated cylinder, you calibrate the pipet you will be using and the values you collect are as follow. What is the average number of drops per mL of benzene. 21 drops 22 drops 17 drops 20.0 drops Part B Part complete After calibration, you use the oleic acid/benzene solution to form a monolayer. It takes 8 drops , 9 drops and 6 drops before the layer on the water solution starts to make a bubble tha...
plz both with explanation Problems: 1. A student adds 25 drops of cetyl alcohol in hexane,...
plz both with explanation
Problems: 1. A student adds 25 drops of cetyl alcohol in hexane, (solution concentration 1.08 x I0 g/mL) to form a monolayer of the alcohol on the surface of water in a Petri dish with an 4 area of 241 cm2 The cetyl alcohol molecules are cylindrical with the diameter of the cylinder equal to one fifth of the length. Assume the long axis of the cylinder is perpendicular to the water surface. The medicine dropper...
Part A) Using your graduated cylinder, you calibrate the pipet you will be using and the...
Part A) Using your graduated cylinder, you calibrate the pipet you will be using and the values you collect are as follow. What is the average number of drops per mL of benzene. 21 drops 20 drops 17 drops Answer: 19.3 drops Part B) After calibration, you use the oleic acid/benzene solution to form a monolayer. It takes 8 drops , 9 drops and 8 drops before the layer on the water solution starts to make a bubble tha does not go...
Posta Posr Lab Questions 1. What is the mass or 5.47 mole of stearic acid? (MW-284...
Posta Posr Lab Questions 1. What is the mass or 5.47 mole of stearic acid? (MW-284 g/mol) 2. The density of stearic acid is 0.870 g/mL. What is the volume of 7.8 x 10 mole of stearic acid? 3. What assumptions were made in this experiment to arrive at a value for Avogadro's number? 4. What is the mass, in grams, of one molecule of stearic acid? E ating Avogadro's Number Answer the following questions about the graph and data...
i need to calculate the theortetical yield by finding the limiting reactant of the experiment by...
i need to calculate the theortetical yield by finding the
limiting reactant of the experiment by converting reactants to
product, then calculate the percent yield using the limiting
reactant
-in my experiment the amout of crystals i obtained was 1.232 g
(watch glass + filter paper = 31.228 g and watch glass, filter
paper, + crystals = 32.460 g)
REACTION SCHEME H сно, ОН- ОСH, CH panisaldehyde acetophenone Molar Mass: 120.15g/mol Molar Mass: 136.15g/mol Molar Mass: 239.30g/mol Density: 1.119g/mL Density:...
lab report titration help please! additional images on lab report 3. Federal standards require that any...
lab report titration help please!
additional images on lab report
3. Federal standards require that any commercial material called "vinegar" must contain as cast acetic acid. According to your results in question 4, does the vinegar sample you titrated meet the Federal standards? Explain why or why not. PART B: IDENTIFICATION OF AN UNKNOWN ACID DATA Molarity of NaOH used Mass of unknown acid used 0.050M 0.5989 14.43mc Average volume of NaOH used in the titration CALCULATIONS 1. Using the...
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...
do you know what i did wrong on this
PART I: Calibration of a Dropper Pipet Trial 1 58 Trial 2.62 1 Number of drops in 1-ml Trial 603 el 2. Average value PART II: Number of Molecules in the Monolayer 2.45cm 4.ssim GO 1 Diameter of the monolayer, cm 2. Number of drops to form monolayer 5+2= 3. Area of the monolayer, cm? 4. Concentration of the stearic acid, g/mL 5. Volume of the stearic acid in the monolayer,...
plz both with explanation
Problems: 1. A student adds 25 drops of cetyl alcohol in hexane, (solution concentration 1.08 x I0 g/mL) to form a monolayer of the alcohol on the surface of water in a Petri dish with an 4 area of 241 cm2 The cetyl alcohol molecules are cylindrical with the diameter of the cylinder equal to one fifth of the length. Assume the long axis of the cylinder is perpendicular to the water surface. The medicine dropper...
Posta Posr Lab Questions 1. What is the mass or 5.47 mole of stearic acid? (MW-284 g/mol) 2. The density of stearic acid is 0.870 g/mL. What is the volume of 7.8 x 10 mole of stearic acid? 3. What assumptions were made in this experiment to arrive at a value for Avogadro's number? 4. What is the mass, in grams, of one molecule of stearic acid? E ating Avogadro's Number Answer the following questions about the graph and data...
i need to calculate the theortetical yield by finding the
limiting reactant of the experiment by converting reactants to
product, then calculate the percent yield using the limiting
reactant
-in my experiment the amout of crystals i obtained was 1.232 g
(watch glass + filter paper = 31.228 g and watch glass, filter
paper, + crystals = 32.460 g)
REACTION SCHEME H сно, ОН- ОСH, CH panisaldehyde acetophenone Molar Mass: 120.15g/mol Molar Mass: 136.15g/mol Molar Mass: 239.30g/mol Density: 1.119g/mL Density:...
lab report titration help please!
additional images on lab report
3. Federal standards require that any commercial material called "vinegar" must contain as cast acetic acid. According to your results in question 4, does the vinegar sample you titrated meet the Federal standards? Explain why or why not. PART B: IDENTIFICATION OF AN UNKNOWN ACID DATA Molarity of NaOH used Mass of unknown acid used 0.050M 0.5989 14.43mc Average volume of NaOH used in the titration CALCULATIONS 1. Using the...
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...
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