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November 2024
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Chemistry 102
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November 8, 2024
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November 8 of 2024
calculate K of H+ and NH3 using 1M for both
calculate K of HCl and NH3 using 1M for both
An ideal gas, Cp = (7/2)R and Cv = (5/2)R, undergoes a cycle consisting of the following mechanically reversible steps: • An adiabatic compression from P1, V1, Ty to P2, V2, T2. An isobaric expansion from P2, V2, T2 to P3 = P2, V3, Тз. • An adiabatic expansion from P3, V3, Tz to P4, V4, T4. • A…
How do you calculate BOD5
What is the equation to convert ppm to ųg/m^3
14. (20 points) A scientific study reports the average person in their study is exposed to 1000 ?g/m³ of benzene on a daily basis. The Occupational Safety and Health Administration (OSHA) has set a permissible exposure limit of 1 part of benzene per million parts of air (1 ppm) in the workplace…
What is the equation to find the doubling time for a population
What is the volume of 1 mole of air at 84 F and 1.1 atm
The decomposition of nitramide, \( \mathrm{O}_{2} \mathrm{NNH}_{2} \), in water has the chemical equation and rate law \[ \mathrm{O}_{2} \mathrm{NNH}_{2}(\mathrm{aq}) \longrightarrow \mathrm{N}_{2} \mathrm{O}(\mathrm{~g})+\mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \quad \text { rate }=k…
The monomer of polyvinylchloride ( PVC ) is \( \mathrm{H}_{2} \mathrm{C}=\mathrm{CHCl} \). Draw an example of an isotactic PVC polymer. - Draw out four repeat units of the polymer. - Draw all bonds on one side of the chain using the wedge (protruding bond) tool. Draw all bonds on the opposite…
A student determines the value of the equilibrium constant to be \( \mathbf{4 . 4 2 \times 1 0 ^ { 1 2 }} \) for the following reaction. \[ 2 \mathrm{NO}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{NO}_{2}(\mathrm{~g}) \] Based on this value of \( \mathrm{K}_{\text {eq…
A student determines the value of the equilibrium constant to be \( \mathbf{4 . 4 2 \times 1 0 ^ { 1 2 }} \) for the following reaction. \[ 2 \mathrm{NO}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{NO}_{2}(\mathrm{~g}) \] Based on this value of \( \mathrm{K}_{\text {eq…
calculation questions on Boyle's and charle's law
Q: 136 If the average human body contains 25.00 Moles of calcium. Calculate: (i) the number of calcium atoms in the average human body. (ii) the number of Moles of calcium in a sample that has 5.00 x 10^24 atoms of calcium
Cassava (Manihot esculenta) slices are dried in aluminum pans 4/7-inch-deep that are insulated on the bottom. Drying air is entering at 195°F with 10%RH. Drying from an initial moisture content of 0.60 Ibm water/Ibm dry solid to a final moisture content of 0.16 lbm water / Ibm dry solid…
Calculate the number of atoms there are in one mole of magnesium hydroxide. A. \( 1.244 \times 10^{24} \) B. \( 6.022 \times 10^{23} \) C. \( 2.604 \times 10^{23} \) D. \( 3.011 \times 10^{24} \)
Learning Goal: Voltaic Cells \[ \mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}{ }_{(\mathrm{aq})}^{2}+\mathrm{C}_{2} \mathrm{O}_{4}{ }^{2-}(\mathrm{aq}) \rightarrow \mathrm{Cr}^{3+}{ }_{(\mathrm{aq})}+\mathrm{CO}_{2(\mathrm{~g})} \] Part A - which element is being oxidized? 0 this is a trick question and…
Learning Goal: Voltaic Cells \[ \mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}{ }_{(\mathrm{aq})}^{2-}+\mathrm{C}_{2} \mathrm{O}_{4}^{2-}{ }_{(\mathrm{aq})}^{2-} \rightarrow \mathrm{Cr}^{3+}{ }_{(\mathrm{aq})}+\mathrm{CO}_{2(\mathrm{~g})} \] Part A - which element is being oxidized? \[ \mathrm{Cr}_{2}…
Consider the following endothermic elementary reaction where the reactants and products are in the gas phase: \[ \mathrm{A}+\mathrm{B}=2 \mathrm{C}+\mathrm{D} \] What is the expression for \( K \). for this reaction? A. \( K_{6}=2[C][D] /|A|[B] \) B. \( \mathrm{N}_{\mathrm{r}}=|\mathrm{C}|…
CH353 - Physical Chemistry I, Fall 2024 Thermodynamics, Chemical Equilibria, \& Statistical Mechanics Problem Set 8: Solutions and Mixtures Suggested Reading: McQuarrie \& Simon: Ch. 24 or Atkins \& de Paula ( \( 9^{\text {"n }} \) Ed.): Ch. 5.1 - 5.8, 5.10 - 5.13 1) In class, we saw that…
Please help me with the questions in the picture
2. Reaction (a) is spontaneous while reaction (b) is non-spontaneous at \( 25^{\circ} \mathrm{C} \) : (a) \( \mathrm{Fe}_{(\mathrm{s})}+2 \mathrm{H}^{+}{ }_{\text {(aq) }} \rightarrow \mathrm{Fe}^{2+}{ }_{(\mathrm{aq})}+\mathrm{H}_{2(\mathrm{~g})} \) (b) \( \mathrm{Cu}_{(\mathrm{s})}+2…
Erica Grascon Homework 5 Thermodynamics II 1. Predict whether the entropy change is positive or negative for each of these reactions: \begin{tabular}{|l|l|} \hline \multicolumn{1}{|c|}{ Reaction } & \( \Delta \mathrm{S} \) \\ \hline a) \( \mathrm{Zn}_{(\mathrm{s})}+2…
1) In class, we saw that partial molar volumes allow us to determine how the volumes of liquids, solids, and gases change upon mixing. Use the partial molar volume data for a water:methanol solution shown to the right to answer the following questions: a. What proportions of methanol and water…
Chrome Fille Edit Vlow History Bookmarks Profiles Tab Window Help D24. Grades - 24.FA.C ALEKS - Sara Ze Chemistry Volum www-awu.aleks.com/alekscgi/x/lsI.exe/1o_u-IgNsIkr7j8P3jH-I... Module Knowledge Check Question 8 A chemist measures the energy change \( \Delta H \) during the following…
Module Knowledge Check Question 7 Sara A chemist measures the enthalpy change \( \Delta H \) during the following reaction: \[ \mathrm{P}_{4}(s)+6 \mathrm{Cl}_{2}(g) \rightarrow 4 \mathrm{PCl}_{3}(g) \quad \Delta H=-1148 . \mathrm{kJ} \] Use this information to complete the table below. Round…
The decomposition of nitramide, \( \mathrm{O}_{2} \mathrm{NNH}_{2} \), in water has the chemical equation and rate law \[ \mathrm{O}_{2} \mathrm{NNH}_{2}(\mathrm{aq}) \longrightarrow \mathrm{N}_{2} \mathrm{O}(\mathrm{~g})+\mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \quad \text { rate }=k…
Consider the following two reactions: 1. Cu2+(aq) + Ba(s) ? Cu(s) + Ba2+(aq) 2. 2Al(s) + 3Sn2+(aq) ? 2Al3+(aq) + 3Sn(s) • Split the reaction into half reactions and determine their standard reduction potentials. Indicate which would be the anode and cathode. • Construct a cell diagram for the…
7. Short Answer a. Give the maximum number of electrons in an atom that can have these quantum numbers: (i) \( \mathrm{n}=4 \) or \( 5,1=3, \mathrm{~m}_{\mathrm{s}}=+1 / 2 \) (ii) \( \mathrm{n}=6, \mathrm{~m}_{1}=-4 \)
How do you calculate BOD5
What is the equation to convert ppm to ųg/m^3
14. (20 points) A scientific study reports the average person in their study is exposed to 1000 ?g/m³ of benzene on a daily basis. The Occupational Safety and Health Administration (OSHA) has set a permissible exposure limit of 1 part of benzene per million parts of air (1 ppm) in the workplace…
What is the equation to find the doubling time for a population
What is the volume of 1 mole of air at 84 F and 1.1 atm
Q: 136 If the average human body contains 25.00 Moles of calcium. Calculate: (i) the number of calcium atoms in the average human body. (ii) the number of Moles of calcium in a sample that has 5.00 x 10^24 atoms of calcium
Consider the following two reactions: 1. Cu2+(aq) + Ba(s) ? Cu(s) + Ba2+(aq) 2. 2Al(s) + 3Sn2+(aq) ? 2Al3+(aq) + 3Sn(s) • Split the reaction into half reactions and determine their standard reduction potentials. Indicate which would be the anode and cathode. • Construct a cell diagram for the…