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Posta Posr Lab Questions 1. What is the mass or 5.47 mole of stearic acid? (MW-284...
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,...
Il. Mole Calculation Questions 7 & 8: Calculate the number of moles when given: 7. 35.4...
Il. Mole Calculation Questions 7 & 8: Calculate the number of moles when given: 7. 35.4 g of K. 8. 259.0 g of CaCl2 9. How many grams does 2.50 moles of KNOs weigh? 10 10. What is the mass of NaF present in 3.22 moles? 11. Convert 4.320 moles of N2 to grams. 12. 12. What is the numerical value of Avogadro's number? 13. How many atoms of nitrogen are in 6.88 moles? 14. How many molecules are in...
Consider example 14.1. What is the ratio of the mass of a single molecule of the ideal gas in the example, to its (molec...
Consider example 14.1. What is the ratio of the mass of a single
molecule of the ideal gas in the example, to its (molecular
velocity)2? Be sure that you're using the correct units and to
include R in your function. (Hint: Your answer should be m/u2 =
??)
535 One mole of an ideal gas at 0°C and 1.00 atm pressure contains 6.022 x 10 molecules (Avogadro's number) and occupies a volume of 22.414 L. A good States of Matter...
6. Sulfur dioxide from coal-fired power plants combines with water in the atmosphere to produce acid rain. What is the...
6. Sulfur dioxide from coal-fired power plants combines with water in the atmosphere to produce acid rain. What is the product when one molecule of SO2 reacts with one molecule of water? A. two molecules of sulfurous acid D. one molecule of sulfuric acid B. one sulfate ion E. one molecule of sulfurous acid C. two sulfite ions 7. Identify the correct statement regarding the mole. A. A mole of oxygen gas contains 6.02 x 10 atoms B. A mole...
I need help please LAB XV. BOYLE'S LAW DATA SHEET NAME: 1. Atmospheric Pressure, mmHg 2....
I need help please
LAB XV. BOYLE'S LAW DATA SHEET NAME: 1. Atmospheric Pressure, mmHg 2. Atmospheric Pressure, atm 3, Room Temperature, ? 4. Room Temperature, K 5. What variables are plotted in each curved graph? (Keyboard, Khd, is not a variable). SECTION: 892x The relationship demonstrated in this experiment in each of these curved graphs is: As increases, (variable) (variable) (increases, decreases) 6. What variables are plotted in each of the "linear" graphs? What relationship is demonstrated in each...
Help me solve and understand this: NA = 6.022 x10 23 mole -! 1. Calculate the...
Help me solve and understand this:
NA = 6.022 x10 23 mole -! 1. Calculate the following: c) the number of moles contained in 4.239 of methane (CH4) (b) the number of atoms in 7.469 of Li © the number of molecules in 43.0 g of NHz (ammonia) d) the number of grams in 2.969 x 1022molecules of CCl4 let chloride) 2. Find the percent composition of each element in acetamide, CaH NO (please use two places past the decimal(ie....
What is the volume of the sphere in Procedure 2 in units of cm3? Express your...
What is the volume of the sphere in Procedure 2 in units of
cm3? Express your answer to two significant figures.
LAB 14: IDEAL GAS LAW BASIC CONCEPTS TEXTBOOK: SECTIONS 15.2, YOUNG, 10TH EDITION DEFINITIONS Volume: The space taken up by an object, measured in cubic meters (m"). Pressure: For an enclosed gas, pressure is defined as the force exerted per area by the gas on the container walls, measured in Pascal (1 N/m) Temperature: A measure of the average...
Data Table 1 Mass of flask and oxalic acid (g) 117.43 Mass of empty flask (g)...
Data Table 1 Mass of flask and oxalic acid (g) 117.43 Mass of empty flask (g) 116.93 Mass of oxalic acid (g) 0.5 Moles of oxalic acid (mol) Final volume of NaOH (mL) 17 Initial volume of NaOH (mL) 5 Volume of NaOH used (mL) 12 Moles of NaOH (mol) Molarity of NaOH (M) Data Table 2 Mass of flask and vinegar (g) 126.61 Mass of empty flask (g) 121.63 Mass of vinegar (g) 4.98 Final volume of NaOH (mL)...
Unknown acid 2 6. Complete the following table. Trial 1 Trial 2 Trial 3 Mass of...
Unknown acid 2 6. Complete the following table. Trial 1 Trial 2 Trial 3 Mass of unknown (8) 0.175 0.120 0.122 Initial buret reading (mL) 0.00 22.37 0.00 Final buret reading (mL) 22.37 44.85 22.83 Volume of NaOH added (mL) 22.37 22.48 22.83 We will assume that the data collected for the first trial is not accurate. 7. What is the average mass of unknown acid for Trials 2 and 3? (Must show calculations) 8. What is the average volume...
need help with questions EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used...
need help with questions
EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used in the apparatus for this experiment? a. Would anything else work? b. If so, what are some examples? 2. What gas forms at the cathode in this experiment? 3. What gas forms at the anode in this experiment? 4. How is the temperature of each of the gases determined? EXPERIMENT ELECTROLYSIS & AVOGADRO'S NUMBER UUUUUUUUUUU INTRODUCTION Electrolysis is the process of causing a chemical...
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,...
Il. Mole Calculation Questions 7 & 8: Calculate the number of moles when given: 7. 35.4 g of K. 8. 259.0 g of CaCl2 9. How many grams does 2.50 moles of KNOs weigh? 10 10. What is the mass of NaF present in 3.22 moles? 11. Convert 4.320 moles of N2 to grams. 12. 12. What is the numerical value of Avogadro's number? 13. How many atoms of nitrogen are in 6.88 moles? 14. How many molecules are in...
Consider example 14.1. What is the ratio of the mass of a single
molecule of the ideal gas in the example, to its (molecular
velocity)2? Be sure that you're using the correct units and to
include R in your function. (Hint: Your answer should be m/u2 =
??)
535 One mole of an ideal gas at 0°C and 1.00 atm pressure contains 6.022 x 10 molecules (Avogadro's number) and occupies a volume of 22.414 L. A good States of Matter...
6. Sulfur dioxide from coal-fired power plants combines with water in the atmosphere to produce acid rain. What is the product when one molecule of SO2 reacts with one molecule of water? A. two molecules of sulfurous acid D. one molecule of sulfuric acid B. one sulfate ion E. one molecule of sulfurous acid C. two sulfite ions 7. Identify the correct statement regarding the mole. A. A mole of oxygen gas contains 6.02 x 10 atoms B. A mole...
I need help please
LAB XV. BOYLE'S LAW DATA SHEET NAME: 1. Atmospheric Pressure, mmHg 2. Atmospheric Pressure, atm 3, Room Temperature, ? 4. Room Temperature, K 5. What variables are plotted in each curved graph? (Keyboard, Khd, is not a variable). SECTION: 892x The relationship demonstrated in this experiment in each of these curved graphs is: As increases, (variable) (variable) (increases, decreases) 6. What variables are plotted in each of the "linear" graphs? What relationship is demonstrated in each...
Help me solve and understand this:
NA = 6.022 x10 23 mole -! 1. Calculate the following: c) the number of moles contained in 4.239 of methane (CH4) (b) the number of atoms in 7.469 of Li © the number of molecules in 43.0 g of NHz (ammonia) d) the number of grams in 2.969 x 1022molecules of CCl4 let chloride) 2. Find the percent composition of each element in acetamide, CaH NO (please use two places past the decimal(ie....
What is the volume of the sphere in Procedure 2 in units of
cm3? Express your answer to two significant figures.
LAB 14: IDEAL GAS LAW BASIC CONCEPTS TEXTBOOK: SECTIONS 15.2, YOUNG, 10TH EDITION DEFINITIONS Volume: The space taken up by an object, measured in cubic meters (m"). Pressure: For an enclosed gas, pressure is defined as the force exerted per area by the gas on the container walls, measured in Pascal (1 N/m) Temperature: A measure of the average...
Unknown acid 2 6. Complete the following table. Trial 1 Trial 2 Trial 3 Mass of unknown (8) 0.175 0.120 0.122 Initial buret reading (mL) 0.00 22.37 0.00 Final buret reading (mL) 22.37 44.85 22.83 Volume of NaOH added (mL) 22.37 22.48 22.83 We will assume that the data collected for the first trial is not accurate. 7. What is the average mass of unknown acid for Trials 2 and 3? (Must show calculations) 8. What is the average volume...
need help with questions
EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used in the apparatus for this experiment? a. Would anything else work? b. If so, what are some examples? 2. What gas forms at the cathode in this experiment? 3. What gas forms at the anode in this experiment? 4. How is the temperature of each of the gases determined? EXPERIMENT ELECTROLYSIS & AVOGADRO'S NUMBER UUUUUUUUUUU INTRODUCTION Electrolysis is the process of causing a chemical...
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