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E Styes Styles 1) Imagine that you place the Bull's Eye on the floor, and then...
Part 2: Accuracy vs Precision The objective of this exercise is to understand the difference between...
Part 2: Accuracy vs Precision The objective of this exercise is to understand the difference between precision and accuracy in a series of measurements. Equipment Virtual Bull's Eye (2 sheets with Carbon paper in between) Procedure Part A )Imagine that you lace the Bull's Eye on the floor, and then t drop a small ball from a 2-meter height (say, extending your arm above your head), aiming at the center of the target 2) The ball, hitting the carbon paper,...
1. Bull's-Eye Bonanza. (Allotted Time 45 minutes) Suppose you want to throw a dart across a...
1. Bull's-Eye Bonanza. (Allotted Time 45 minutes) Suppose you want to throw a dart across a room at a wall-mounted target and hit the target exactly at its center point. We call this center point of the target its "bull's eye". The bull's-eye is a horizontal distance d from the dart's point of release and a height h above the dart's point of release. To hit the bul'seye, you have a choice of the speed s at which you throw...
QUESTIONS 1. In your own words, explain how the components of a mixture are separated during...
QUESTIONS 1. In your own words, explain how the components of a mixture are separated during thin layer chromatography. Do not explain how to perform TLC; in other words do not explain the procedure. 2. Explain the purpose of the UV lamp in this experiment. 3. Why must you use pencil, not pen, when you make marks on the TLC plate? How do you know? Be sure to 4. Which substances were in the OTC pain reliever? discuss your Rr...
1-6 Enrichment Basic Constructions An optical illusion is an image that often is misleading to the human eye. The following images are optical illusigns. How do you view each image? Do you see th...
1-6 Enrichment Basic Constructions An optical illusion is an image that often is misleading to the human eye. The following images are optical illusigns. How do you view each image? Do you see the cube from above or below? How many balls are on each shelf? Which shelf are they on?straight or curved? Are the inside vertical lines The optical illusion at the right can be viewed in two ways. It can be viewed as a cube with another cube...
Show as much work as you can, draw sketches if necessary and clearly explain why you are doing what you are doing Use c...
Show as much work as you can, draw sketches if necessary and clearly explain why you are doing what you are doing Use correct mathematical notation You may work with your classmates. However, please submit your own work! Please use this sheet as a cover page. (4x - y2 sin(x))i + (z + 2y cos(x))j yk and C be the circle of radius 3, centered at (1,3,2), Let F = 1. traversed clockwise, from (4, 3,2) to (1,6,2) viewed from...
1. Bromination of an alkene is restricted to a syn addition. In this problem you will...
1. Bromination of an alkene is restricted to a syn addition. In this problem you will design an experiment to validate or provide evidence that alkene bromination undergoes syn addition You will use the following starting alkene a) trans-stilbene b) cis-stilbene A. Draw the mechanisms showing all electron flows (curved arrows) and the cyclic halonium intermediate to predict the stereochemical products of the bromination reaction for (a) trans-stilbene and (b) cis-stilbene formed from syn addition. B. Design the experiment to...
a. This is a prediction. Do not carry it out yet. Suppose you were to close...
a. This is a prediction. Do not carry it out yet. Suppose you were to close the switch and bring the north pole of a cow magnet up under the wire, as in the diagram below (while the switch is closed). Z (1) What is the approximate direction of the net magnetic field of the magnet near the wire? Explain your reasoning. if possible Ho a catter (ii) Which direction, if any, would the wire move? Record your prediction for...
help with these questions please ! (a) empty vector (b) my IIA (C) my IIB View...
help
with these questions please !
(a) empty vector (b) my IIA (C) my IIB View larger image Figure 1 Equal numbers of COS-7 cells were transfected with (a) empty vector, (b) myosin TIA (my IIA) or (c) myosin IIB (my IIB). After 3 days, cell nuclei were stained and images were captured using a fluorescence microscope. a. The following part-questions require you to analyse and interpret the data presented in Figure 1. i. In Figure 1, which of the...
9. What do you think are most likely reasons for the difference between the experimental and...
9. What do you think are most likely reasons for the difference between the experimental and accepted values? 13 marks 10. Suppose that the centripetal force acting on an object in circular motion were doubled to a new value, and the object remained in a circular path with the same radius. How would the motion be affected? 13 marks Observations and Data; 17 marks time for 20 Centripe 1/T2 tal force (s2) Number of washers revolutions F/R (N/m) T (s)...
INTERMOLECULAR FORCES INTRODUCTION LEARNING OBJECTIVES To relate the effecet of intermolecular fo...
INTERMOLECULAR FORCES INTRODUCTION LEARNING OBJECTIVES To relate the effecet of intermolecular forces on relative melting points and vapour pressures of some organic substances THEORY Weak attractive forces that occur between individual molecules in substances are called intermolecular forces. These include London dispersion forces, dipole-dipole forces and hydrogen-bonding forces. Collectively, the three types of intermolecular forces are referred to as Van der Waals forces. These attractive forces are much weaker than the chemical bonds between atoms in a molecule. Note that...
Part 2: Accuracy vs Precision The objective of this exercise is to understand the difference between precision and accuracy in a series of measurements. Equipment Virtual Bull's Eye (2 sheets with Carbon paper in between) Procedure Part A )Imagine that you lace the Bull's Eye on the floor, and then t drop a small ball from a 2-meter height (say, extending your arm above your head), aiming at the center of the target 2) The ball, hitting the carbon paper,...
1. Bull's-Eye Bonanza. (Allotted Time 45 minutes) Suppose you want to throw a dart across a room at a wall-mounted target and hit the target exactly at its center point. We call this center point of the target its "bull's eye". The bull's-eye is a horizontal distance d from the dart's point of release and a height h above the dart's point of release. To hit the bul'seye, you have a choice of the speed s at which you throw...
QUESTIONS 1. In your own words, explain how the components of a mixture are separated during thin layer chromatography. Do not explain how to perform TLC; in other words do not explain the procedure. 2. Explain the purpose of the UV lamp in this experiment. 3. Why must you use pencil, not pen, when you make marks on the TLC plate? How do you know? Be sure to 4. Which substances were in the OTC pain reliever? discuss your Rr...
1-6 Enrichment Basic Constructions An optical illusion is an image that often is misleading to the human eye. The following images are optical illusigns. How do you view each image? Do you see the cube from above or below? How many balls are on each shelf? Which shelf are they on?straight or curved? Are the inside vertical lines The optical illusion at the right can be viewed in two ways. It can be viewed as a cube with another cube...
Show as much work as you can, draw sketches if necessary and clearly explain why you are doing what you are doing Use correct mathematical notation You may work with your classmates. However, please submit your own work! Please use this sheet as a cover page. (4x - y2 sin(x))i + (z + 2y cos(x))j yk and C be the circle of radius 3, centered at (1,3,2), Let F = 1. traversed clockwise, from (4, 3,2) to (1,6,2) viewed from...
1. Bromination of an alkene is restricted to a syn addition. In this problem you will design an experiment to validate or provide evidence that alkene bromination undergoes syn addition You will use the following starting alkene a) trans-stilbene b) cis-stilbene A. Draw the mechanisms showing all electron flows (curved arrows) and the cyclic halonium intermediate to predict the stereochemical products of the bromination reaction for (a) trans-stilbene and (b) cis-stilbene formed from syn addition. B. Design the experiment to...
a. This is a prediction. Do not carry it out yet. Suppose you were to close the switch and bring the north pole of a cow magnet up under the wire, as in the diagram below (while the switch is closed). Z (1) What is the approximate direction of the net magnetic field of the magnet near the wire? Explain your reasoning. if possible Ho a catter (ii) Which direction, if any, would the wire move? Record your prediction for...
help
with these questions please !
(a) empty vector (b) my IIA (C) my IIB View larger image Figure 1 Equal numbers of COS-7 cells were transfected with (a) empty vector, (b) myosin TIA (my IIA) or (c) myosin IIB (my IIB). After 3 days, cell nuclei were stained and images were captured using a fluorescence microscope. a. The following part-questions require you to analyse and interpret the data presented in Figure 1. i. In Figure 1, which of the...
9. What do you think are most likely reasons for the difference between the experimental and accepted values? 13 marks 10. Suppose that the centripetal force acting on an object in circular motion were doubled to a new value, and the object remained in a circular path with the same radius. How would the motion be affected? 13 marks Observations and Data; 17 marks time for 20 Centripe 1/T2 tal force (s2) Number of washers revolutions F/R (N/m) T (s)...
INTERMOLECULAR FORCES INTRODUCTION LEARNING OBJECTIVES To relate the effecet of intermolecular forces on relative melting points and vapour pressures of some organic substances THEORY Weak attractive forces that occur between individual molecules in substances are called intermolecular forces. These include London dispersion forces, dipole-dipole forces and hydrogen-bonding forces. Collectively, the three types of intermolecular forces are referred to as Van der Waals forces. These attractive forces are much weaker than the chemical bonds between atoms in a molecule. Note that...
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