4. If we had assumed the q for the calorimeter to be zero, would this have...
4. If we had assumed the q for the calorimeter to be zero, would this have caused the calculated ΔHfus to be too High or too Low? Explain.
Homework Answers
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4. If we had
assumed the q for the calorimeter to be zero, would this have...
explain how would the calculated value of molar mass be affected if the temperature was assumed...
explain how would the calculated value of molar mass be
affected if the temperature was assumed to be 100 when it was
actually was only 90 Celcius
Experiment 8 Questions. 1. Explain how would the calculated value of the molar mass be affected (too high, too low, no effect) if: a) the flask had been left in the water bath for so long that after all the liquid vaporized, some of the vapor escaped and was replaced by air? less...
Explain what effect the following scenarios would have on the calculated specific heat (i.e. would it...
Explain what effect the following scenarios would have on the calculated specific heat (i.e. would it be calculated artificially high, low, or have no effect). Your explanation should address what variable(s) would be affected by the scenario and how that affects the calculation of specific heat.(1.5pt each) A student accidently dropped the piece of metal on the countertop during the process of transferring it from the boiling water bath to the calorimeter, but was quickly picked up and put into...
help Error Analysis 1. In parts A, B, and C, if the calorimeter was not dry,...
help
Error Analysis 1. In parts A, B, and C, if the calorimeter was not dry, the change in temperature would be too (high/low). This would make the |AH| appear too _(high/low). 2. If a reaction is exothermic, the sign of AH is and heat is 3. If a reaction is endothermic, the sign of AH is and heat is 4. In the determination of the specific heat of the metal, if some of the water that was used to...
A careless scientist is about to measure the heat capacity of a calorimeter using the procedure...
A careless scientist is about to measure the heat capacity of a calorimeter using the procedure described in this experiment. The scientist misreads the burette and dispenses 95.00 mL of water rather than the required 75.00 mL into the calorimeter. If the scientist presumes that the volume was 75 mL, what effect will this error have on the determination of the heat capacity (Cp)of the calorimeter? a) The Calculated Cp will be too low. b) (T2 - T1) will be...
If you are too vigorous in your stirring/swirling of the calorimeter, some of the contents of the...
If you are too vigorous in your stirring/swirling of the
calorimeter, some of the contents of the plastic beaker will spill
out into the Styrofoam cup. Would making this have
caused your calculated result in part A to be too high or too
low. Give a detailed explanation
Part A trial 1iial 3 Masof Calm 41, Gz1e 4211.631 clone tr t HC 1 | 6766R9| 62.34%| 61-5566g tempof aard 3.523 mes of diy22 beapir 2.2 766 2.2773 2.27165 mas or...
For the Unknown Liquid, suppose the first three measurements (empty, w/ 5mL, and w/ had no...
For the Unknown Liquid, suppose the first three measurements (empty, w/ 5mL, and w/ had no major error, but then you chipped your cylinder and the mass was too low for 10mL the last 3 measurements (w/ 15mL, w/ 20mL, and w/ 25mL). Briefly explain whether this would cause your calculated density to be too High or too Low (think about slope).
Post Lab Questions 1. in a hurry to complete the experiment, the student failed to calibrate...
Post Lab Questions 1. in a hurry to complete the experiment, the student failed to calibrate the Spectrophotometer. As a result, all absorbance values for the standard solutions that are measured and recorded are too high. How will this affect the following calculations in Part B? a. Will the calculated equilibrium concentrations of FeSCN** be too high, too low, or unaffected? Explain. b. Will the calculated equilibrium constants be too high, too low, or unaffected? Explain. 2. In Part A,...
4. Orbital Magnetic Moment - In the derivation of the orbital magn etic dipole moment in the notes, we assumed a si...
4. Orbital Magnetic Moment - In the derivation of the orbital magn etic dipole moment in the notes, we assumed a single electron orbiting a nucleus to obtain the magnetic moment. From a quantum mechanical point of view this is strange because the electron's position is uncertain. Instead of the single charge consider the cases below. Follow the analysis th rough and determine if a different result would have been obtained for the magnetic moment. Consider the electrons charge and...
if all of the magnesium nitride that forward were not removed, would the final percentage of...
if all of the magnesium nitride that forward were not removed, would the final percentage of Mg in the product calculated be too high or too low? explain your answer.
If the freezing point of the solution had been incorrectly read 0.3 °C lower than the...
If the freezing point of the solution had been incorrectly read 0.3 °C lower than the true freezing point, would the calculated molar mass of the solute have been too high or too low? Explain. Select all that apply. Select all that apply. The resulting molar mass (g/mol) would be smaller since the mol term is in the denominator. A larger ΔT results in a lower calculated molality of the solution, and thus smaller number of moles. The resulting molar...
explain how would the calculated value of molar mass be
affected if the temperature was assumed to be 100 when it was
actually was only 90 Celcius
Experiment 8 Questions. 1. Explain how would the calculated value of the molar mass be affected (too high, too low, no effect) if: a) the flask had been left in the water bath for so long that after all the liquid vaporized, some of the vapor escaped and was replaced by air? less...
help
Error Analysis 1. In parts A, B, and C, if the calorimeter was not dry, the change in temperature would be too (high/low). This would make the |AH| appear too _(high/low). 2. If a reaction is exothermic, the sign of AH is and heat is 3. If a reaction is endothermic, the sign of AH is and heat is 4. In the determination of the specific heat of the metal, if some of the water that was used to...
If you are too vigorous in your stirring/swirling of the
calorimeter, some of the contents of the plastic beaker will spill
out into the Styrofoam cup. Would making this have
caused your calculated result in part A to be too high or too
low. Give a detailed explanation
Part A trial 1iial 3 Masof Calm 41, Gz1e 4211.631 clone tr t HC 1 | 6766R9| 62.34%| 61-5566g tempof aard 3.523 mes of diy22 beapir 2.2 766 2.2773 2.27165 mas or...
For the Unknown Liquid, suppose the first three measurements (empty, w/ 5mL, and w/ had no major error, but then you chipped your cylinder and the mass was too low for 10mL the last 3 measurements (w/ 15mL, w/ 20mL, and w/ 25mL). Briefly explain whether this would cause your calculated density to be too High or too Low (think about slope).
Post Lab Questions 1. in a hurry to complete the experiment, the student failed to calibrate the Spectrophotometer. As a result, all absorbance values for the standard solutions that are measured and recorded are too high. How will this affect the following calculations in Part B? a. Will the calculated equilibrium concentrations of FeSCN** be too high, too low, or unaffected? Explain. b. Will the calculated equilibrium constants be too high, too low, or unaffected? Explain. 2. In Part A,...
4. Orbital Magnetic Moment - In the derivation of the orbital magn etic dipole moment in the notes, we assumed a single electron orbiting a nucleus to obtain the magnetic moment. From a quantum mechanical point of view this is strange because the electron's position is uncertain. Instead of the single charge consider the cases below. Follow the analysis th rough and determine if a different result would have been obtained for the magnetic moment. Consider the electrons charge and...
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