Suppose that when doing the experiment described in question 6, some of the liquid evaporates between...
Suppose that when doing the experiment described in question 6, some of the liquid evaporates between the time it is added to the beaker and the time the mass of “beaker + liquid” (line b in the table) is recorded. What effect, if any, would this have on the calculated density of the liquid?
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Suppose that when doing the experiment described in question 6,
some of the liquid evaporates between...
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown...
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown to the student, the balance was not zeroed but weighed 0.100 g too high throughout the experiment. Would the calculated val- ue for the density of the unknown liquid be correct? That is, would it be equal to, higher than, or lower than the true value. Explain your answer in clear and correct English. 16 LABORATORY EXPERIMENTS IN GENERAL CHEMISTRY ed in question 4...
*please solve using dimensional analysis, thank you* 4. When liquid 2-chloro-2-methylpropane, CaHsCl, is added to ethanol...
*please solve using dimensional analysis, thank you*
4. When liquid 2-chloro-2-methylpropane, CaHsCl, is added to ethanol (CH3CH2OH) in water, the following reactions can occur: САн,Сі + CH,сH,0н нсі + С.Н,осн,CH, C&HCI + H20 HCI CH,OH (1) (2) The density of liquid CaHsCl at 25'C is 0.851 g/mL. Into a beaker was added 0.100 mL of CaHsCl and only reaction (1) occured: a. What mass in grams of ethanol will be required to fully react with all of the C4HCI? b....
Molecular Mass by Freezing point Depression (Preliminary Lab) The following errors occurred when the above experiment was carried out
Molecular Mass by Freezing point Depression (Preliminary Lab) The following errors occurred when the above experiment was carried out. How would each affect the calculated molecular mass of the solute (too high,too low, no effect)? Explain your answer. (a) The thermometer uses actually read 1.4C too high. (b) Some of the solvent was spilled before the solute was added.
Suppose E is the half-cylinder described by 2y2 between z and the ry-plane where y 2 0. Suppose further that the density at each point in E is proportional to the distance from the z-axis. (a) (6 poi...
Suppose E is the half-cylinder described by 2y2 between z and the ry-plane where y 2 0. Suppose further that the density at each point in E is proportional to the distance from the z-axis. (a) (6 points) Find an expression for the mass of E as a triple integral. Then briefly explain why this integral is difficult to compute Suppose E is the half-cylinder described by r' +ґ-1 between z = 4 and the xy-plane where y > 0....
1. An experiment was conducted in which the volume of a fixed quantity of gas was...
1. An experiment was conducted in which the volume of a fixed quantity of gas was measured at different temperatures at constant pressure. The results are tabulated below. Graph the data, and answer the questions from the graph. Temperature (k) 405 Volume (L 455 6.65 533 7.97 573 8.42 594 8.86 5.94 7.34 a. What will the volume be at 450k? b. At what temperature will the volume be 7.73L? c. Calculate and state the physical significance of the slope...
Before doing an experiment with sulfur dioxide, you look up some safety mation. Answer the question...
Before doing an experiment with sulfur dioxide, you look up some safety mation. Answer the question below, and state what information you used to answer the solution. Is sulfur dioxide a solid, liquid or gas at room temp? How do you know? Is sulfur dioxide a fire hazard? How fo you know? Is sulfur dioxide a health hazard? How do you know? Is there a risk sulfur dioxide reacting with something else? How do you know? Based upon the information...
2. When a neutralization reaction was carried out using 100.0 ml of 0.7890M NH3 water and...
2. When a neutralization reaction was carried out using 100.0 ml of 0.7890M NH3 water and 100.0 ml of 0.7940M acetic acid, AT was found to be 4.76 "C The specific heat of the reaction mixture was 4.104 -1K-1 and its density was 1.03 g ml 1. The calorimeter constant was 3.361 K-1 1) Calculate AH neutan for the reaction of NH3 and acetic acid 06) At the end of the experiment, it was discovered that the thermometer had not...
Experiment 1: Diffusion through Gelatin Data Tables Purpose (What question is this experiment designed to answer?):...
Experiment 1: Diffusion through Gelatin
Data Tables
Purpose (What question is this experiment
designed to answer?):
Hypothesis (Based on what you’ve learned in the
pre-lab materials, write and If/Then statement regarding the
outcome of this experiment.):
Table 1: Diffusion Data
Test Tube
Distance After 4 Hours (mm)
Distance After 24 Hours (mm)
A
B
C
Claim (What are the results of your
experiment?):
Evidence (What data did you collect that
supports your claim? Explain the meaning behind the data and...
Suppose E is the half-cylinder described by 2y2 between z and the ry-plane where y 2 0. Suppose further that the density at each point in E is proportional to the distance from the z-axis. (a) (6 poi...
Suppose E is the half-cylinder described by 2y2 between z and the ry-plane where y 2 0. Suppose further that the density at each point in E is proportional to the distance from the z-axis. (a) (6 points) Find an expression for the mass of E as a triple integral. Then briefly explain why this integral is difficult to compute
Suppose E is the half-cylinder described by 2y2 between z and the ry-plane where y 2 0. Suppose further that...
Suppose some of the solid calcium hydroxide is inadvertently transferred along with the supernatant liquid for...
Suppose some of the solid calcium hydroxide is inadvertently transferred along with the supernatant liquid for analysis. a.Will more. less, or the same amount of hydrochloric acid titrant be used for the analysis in .6? Explain. b.Will this inadvertent transfer increase, decrease, or have no effect on the calculated solubility product for calcium hydroxide? Explain. c.Will this inadvertent transfer increase, decrease, or have no effect on the calculated molar solubility of calcium hydroxide? Explain. 2. .6 Does adding beiled, deionized...
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown to the student, the balance was not zeroed but weighed 0.100 g too high throughout the experiment. Would the calculated val- ue for the density of the unknown liquid be correct? That is, would it be equal to, higher than, or lower than the true value. Explain your answer in clear and correct English. 16 LABORATORY EXPERIMENTS IN GENERAL CHEMISTRY ed in question 4...
*please solve using dimensional analysis, thank you*
4. When liquid 2-chloro-2-methylpropane, CaHsCl, is added to ethanol (CH3CH2OH) in water, the following reactions can occur: САн,Сі + CH,сH,0н нсі + С.Н,осн,CH, C&HCI + H20 HCI CH,OH (1) (2) The density of liquid CaHsCl at 25'C is 0.851 g/mL. Into a beaker was added 0.100 mL of CaHsCl and only reaction (1) occured: a. What mass in grams of ethanol will be required to fully react with all of the C4HCI? b....
Suppose E is the half-cylinder described by 2y2 between z and the ry-plane where y 2 0. Suppose further that the density at each point in E is proportional to the distance from the z-axis. (a) (6 points) Find an expression for the mass of E as a triple integral. Then briefly explain why this integral is difficult to compute Suppose E is the half-cylinder described by r' +ґ-1 between z = 4 and the xy-plane where y > 0....
1. An experiment was conducted in which the volume of a fixed quantity of gas was measured at different temperatures at constant pressure. The results are tabulated below. Graph the data, and answer the questions from the graph. Temperature (k) 405 Volume (L 455 6.65 533 7.97 573 8.42 594 8.86 5.94 7.34 a. What will the volume be at 450k? b. At what temperature will the volume be 7.73L? c. Calculate and state the physical significance of the slope...
Before doing an experiment with sulfur dioxide, you look up some safety mation. Answer the question below, and state what information you used to answer the solution. Is sulfur dioxide a solid, liquid or gas at room temp? How do you know? Is sulfur dioxide a fire hazard? How fo you know? Is sulfur dioxide a health hazard? How do you know? Is there a risk sulfur dioxide reacting with something else? How do you know? Based upon the information...
2. When a neutralization reaction was carried out using 100.0 ml of 0.7890M NH3 water and 100.0 ml of 0.7940M acetic acid, AT was found to be 4.76 "C The specific heat of the reaction mixture was 4.104 -1K-1 and its density was 1.03 g ml 1. The calorimeter constant was 3.361 K-1 1) Calculate AH neutan for the reaction of NH3 and acetic acid 06) At the end of the experiment, it was discovered that the thermometer had not...
Experiment 1: Diffusion through Gelatin
Data Tables
Purpose (What question is this experiment
designed to answer?):
Hypothesis (Based on what you’ve learned in the
pre-lab materials, write and If/Then statement regarding the
outcome of this experiment.):
Table 1: Diffusion Data
Test Tube
Distance After 4 Hours (mm)
Distance After 24 Hours (mm)
A
B
C
Claim (What are the results of your
experiment?):
Evidence (What data did you collect that
supports your claim? Explain the meaning behind the data and...
Suppose E is the half-cylinder described by 2y2 between z and the ry-plane where y 2 0. Suppose further that the density at each point in E is proportional to the distance from the z-axis. (a) (6 points) Find an expression for the mass of E as a triple integral. Then briefly explain why this integral is difficult to compute
Suppose E is the half-cylinder described by 2y2 between z and the ry-plane where y 2 0. Suppose further that...
Suppose some of the solid calcium hydroxide is inadvertently transferred along with the supernatant liquid for analysis. a.Will more. less, or the same amount of hydrochloric acid titrant be used for the analysis in .6? Explain. b.Will this inadvertent transfer increase, decrease, or have no effect on the calculated solubility product for calcium hydroxide? Explain. c.Will this inadvertent transfer increase, decrease, or have no effect on the calculated molar solubility of calcium hydroxide? Explain. 2. .6 Does adding beiled, deionized...
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