Chemistry concepts and calculations
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\\ e Which Of The Follo, \'O Arrange The Follow × \\ e write The Complet- G the
e Which Of The Follo, 'O Arrange The Follow × e write The Complet- G the orbital energ owLv2] Online teac × × e east.cengagenow.com/ilm/takeAssignment/takeCovalentActivity.do?loca…
\\(Ni^{2+}(aq) +6NH_{3}(aq)Ni(NH_{3})_{6}^{2+}(aq)\\) Green Colorless Viol
(Ni^{2+}(aq) +6NH_{3}(aq)<---->Ni(NH_{3})_{6}^{2+}(aq)) Green Colorless Violet By adding NH3to the solution, the solution turned violet which shows there was a shift to t…
\\Within a family, elements with higher atomic numbers pull less strongly on ele
Within a family, elements with higher atomic numbers pull less strongly on electrons in a bond, because the valance electrons are in higher principal energy levels. True False W…
\\eChegg Study! Guided S/X D CHEM 232 PS7 F2017t x yWileyPLUS C Secure | https:/
eChegg Study! Guided S/X D CHEM 232 PS7 F2017t x yWileyPLUS C Secure | https://edugen.vvileyplus.com/ed For The Following React × G which of the following v x × Return to Blackboa…
] The Si-Fe binary phase diagram is shown below (a) How many eutectics can you f
] The Si-Fe binary phase diagram is shown below (a) How many eutectics can you find and at what composition (approximately)? [4] (b) How many low temperature (below 800oC) stable …
] Week 6 Calorimetry 163L Calorimetry pdf CHEM 163L Spring 2018- vas iastate.edu
] Week 6 Calorimetry 163L Calorimetry pdf CHEM 163L Spring 2018- vas iastate.edu/courses/32560/quizzes/120343/take (specific heat for water is 4.18J/gC). Do not enter unit M Week …
] Week 6 Calorimetry 163L Calorimetry pdf CHEM 163L Spring 2018- vas iastate.edu
] Week 6 Calorimetry 163L Calorimetry pdf CHEM 163L Spring 2018- vas iastate.edu/courses/32560/quizzes/120343/take (specific heat for water is 4.18J/gC). Do not enter unit M Week …
^13 C NMR spectroscopy is a technique that produces a peak for each unique carbo
^13 C NMR spectroscopy is a technique that produces a peak for each unique carbon or set of carbons in a molecule. C_60 (buckminsterfullerene) has only 1 peak because every carbon…
^1H NMR resonance frequency of a spectrometer is 500 MHz (a) Calculate the lower
^1H NMR resonance frequency of a spectrometer is 500 MHz (a) Calculate the lower state excess of H nuclei at 25 degree C in ppm (b) What will be the^19F resonance frequency of thi…
^1H NMR resonance frequency of a spectrometer is 500 MHz Calculate the lower sta
^1H NMR resonance frequency of a spectrometer is 500 MHz Calculate the lower state excess of^1H nuclei at 25 degree C in ppm What will be the^19 F resonance frequency of this spec…
^238 U undergoes alpha (alpha) decay. Write the equation, including the products
^238 U undergoes alpha (alpha) decay. Write the equation, including the products, showing the nuclear reaction that takes place when ^238 U undergoes decay. ^210 Bi undergoes beta…
^^Using Table 38.3 in the Voyce text, calculate the solubility of Manganese(II)
^^Using Table 38.3 in the Voyce text, calculate the solubility of Manganese(II) hydroxide at 25oC A. 3.6 x 10-5 B. 5.7 x 10-5 C. 4.4 x 10-7 Table 38.3 SOLUBILITY-PRODUCT CONSTA CT…
_ The quantity of antimony in a sample can be determined by an oxidation-reducti
_ The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 9.33-g sample of stibnite, an ore of antimony, is dissolved…
___ Na(s) + ___ N_2(g) rightarrow ____ NaN_3 How many moles of sodium nitride ca
___ Na(s) + ___ N_2(g) rightarrow ____ NaN_3 How many moles of sodium nitride can be made from 5.0 moles of sodium metal? 5.0 mol Na times mol NaN_2/mol Na = mol NaN_3 How many mo…
___Consider this reaction. Sn^2+(aq) + 2Fe^3+(aq) rightarrow Sn^4+(aq) + 2Fe^2+(
___Consider this reaction. Sn^2+(aq) + 2Fe^3+(aq) rightarrow Sn^4+(aq) + 2Fe^2+(aq) E degree = 0.617 V What is the value of E when [Sn^2+] and [Fe^3+] are equal to 0.50 M and [Sn^…
___The Burger\'s vector of a screw dislocation is parallel to the dislocation li
___The Burger's vector of a screw dislocation is parallel to the dislocation line. ___The Burger's vector of an edge dislocation is parallel to the dislocation line. ___The electr…
___The tared mass of a sample is its mass without regard to its container. ____T
___The tared mass of a sample is its mass without regard to its container. ____Transfer liquids and solutions from a reagent bottle or beaker with the aid of a stirring rod. ____A…
___What is the standard electrode Standard Reduction Potentials E potential for
___What is the standard electrode Standard Reduction Potentials E potential for a voltaic cell constructed in the appropriate way from these two half-cells?(A) -1.02 V (B) 046 V (…
____ 11. Which statement regarding battery-powered electric cars is NOT correct?
____ 11. Which statement regarding battery-powered electric cars is NOT correct? Currently battery-powered electric cars ________ a. are more efficient than internal combustion …
____ 5. When 22.5 grams of hydrogen sulfide(g) react with excess oxygen(g) accor
____ 5. When 22.5 grams of hydrogen sulfide(g) react with excess oxygen(g) according to the following reaction: 2H2S(g) + 3O2(g) 2H2O(g) + 2SO2(g) DH = -1.04E+3 kJ Which of the fo…
____ 5. When 22.5 grams of hydrogen sulfide(g) react with excess oxygen(g) accor
____ 5. When 22.5 grams of hydrogen sulfide(g) react with excess oxygen(g) according to the following reaction: 2H2S(g) + 3O2(g) 2H2O(g) + 2SO2(g) DH = -1.04E+3 kJ Which of the fo…
____ 9. Under similar conditions, which of the following gases will behave less
____ 9. Under similar conditions, which of the following gases will behave less like an ideal gas than the others? a. NH3 d. H2 b. HCl e. O2 c. CH4 ____ 10. Which of the fo…
____ 9. Under similar conditions, which of the following gases will behave less
____ 9. Under similar conditions, which of the following gases will behave less like an ideal gas than the others? a. NH3 d. H2 b. HCl e. O2 c. CH4 ____ 10. Which of the fo…
_____ 1. An element has how many classes of properties to describe it? a. 1 b. 2
_____ 1. An element has how many classes of properties to describe it? a. 1 b. 2 c. 3 d. 4 ______2. When copper turns green, it is an example of its a. chemic…
_____ 1. Triacylglycerols and triglycerides are two names for the same type of c
_____ 1. Triacylglycerols and triglycerides are two names for the same type of compounds. _____2. Complete oxidation of glucose yields more energy than complete oxidation of an eq…
_____ 20. The following C preprocessor directive contains: #define pi=3.14159; A
_____ 20. The following C preprocessor directive contains: #define pi=3.14159; A. a value assigned to a variable B. a value set equal to a variable C. a single syntax error D. two…
_____ 4. HCO_3 is amphoteric. 5. The complex ion, [Al(H_2 O)6]^3+, in conjugate
_____ 4. HCO_3 is amphoteric. 5. The complex ion, [Al(H_2 O)6]^3+, in conjugate acid of [AI(H_2 O)_5 (OH)]^2+ _____ 6. NO_3^- is a weaker base than F. _____7. The pK_a of acetic a…
_____ Metal ions such as Zn^2+ and Fe^3+ are often needed by enzymes as A) isozy
_____ Metal ions such as Zn^2+ and Fe^3+ are often needed by enzymes as A) isozymes. B) allosteres. C) inhibitors. D) cofactors. E) substrates. Fill in the blank. List the level o…
_____ NaOH + _____ Al rightarrow _____ Al_2O_3 + _____ H_2 + _____ Na_2O _____ K
_____ NaOH + _____ Al rightarrow _____ Al_2O_3 + _____ H_2 + _____ Na_2O _____ KMnO_4 rightarrow _____ K_2O + _____ MnO + _____ O_2 _____ H_2O + _____ O_2 + _____ As rightarrow __…
_____ The k_eq values apply to the following two equations at 25 degree C: H_2(g
_____ The k_eq values apply to the following two equations at 25 degree C: H_2(g) + l_2(g) 2HI(g) K_eq= 6.17 times 10^2 H_2(g) + Br_2(g) 2HBr(g) K_eq = 1.88 times 10^19 Calculate …
_____ The order of a chemical reaction can be determined by examining its Stoich
_____ The order of a chemical reaction can be determined by examining its Stoichiometry. _____ A bimolecular elementary reaction step has a second-order rate law. _____ A reaction…
_____ Water boils at 100 degree C and ethylene glycol boils at 197 degree C. The
_____ Water boils at 100 degree C and ethylene glycol boils at 197 degree C. Therefore, at all temperatures water has a lower vapor pressure. at only some temperatures does water …
_____ What effect does a catalyst have on the value of the K_eq for a chemical r
_____ What effect does a catalyst have on the value of the K_eq for a chemical reaction? no effect. it increases. it decreases. it increases if the concentrations are increased. i…
_____ Which of the following statement about enzymes are true? (Two correct answ
_____ Which of the following statement about enzymes are true? (Two correct answers) (A) To be effective, enzymes must be present at the same concentration as their substrates. (B…
_____ and ____ react to produce an ester (ignore this bit, just putting this her
_____ and ____ react to produce an ester (ignore this bit, just putting this here to archive the question) So for the first part I'm mainly interested which section is wrong, I mi…
_____ forces form when salts dissolve in water. Show the interactions between a
_____ forces form when salts dissolve in water. Show the interactions between a sodium ion and several water molecules in a solution. Which of the following will experience more h…
_____20. A sample of solid potassium nitrate is placed in water. The solid potas
_____20. A sample of solid potassium nitrate is placed in water. The solid potassium nitrate comes to equilibrium with its dissolved ions by the endothermic process shown below. W…
_____5. A lead storage cell can function both as an electrolytic cell and as a v
_____5. A lead storage cell can function both as an electrolytic cell and as a voltaic cell. When a lead storage battery is being recharged, it converts ________ energy to_____--e…
______ By which of the following chemical reactions does the electron-transport
______ By which of the following chemical reactions does the electron-transport chain occur? A) protonation-deprotonation B) hydration-dehydration C) oxidation-reduction D) isomer…
______ How many liters of dry hydrogen gas at STP would be liberated by 0.635 gr
______ How many liters of dry hydrogen gas at STP would be liberated by 0.635 grams of calcium metal? ______ How many liters of dry hydrogen gas at STP would be liberated by 0.553…
______ M _______ M Titration to Determine the Ksp A saturated solution of an unk
______ M _______ M Titration to Determine the Ksp A saturated solution of an unknown metal (III) hydroxide was filtered to remove any excess solids. Then a 11.00 mL sample of the …
______ Which of the following reagent(s) could not be used to carry out the foll
______ Which of the following reagent(s) could not be used to carry out the following transformation? A) Zn(Hg), HCl B) LiAlH_4, ether C) HSCH_2 CH_2 SH, BF_3; then Raney Ni (H_2)…
_______ Application of the Gibbs-Helmholtz equation leads to the prediction that
_______ Application of the Gibbs-Helmholtz equation leads to the prediction that ammonia synthesis becomes thermodynamically favorable above 1000K. _______ If the equilibrium cons…
_______CuSO_4(aq) + _ NaOH_(aq) rightarrow _ Cu(OH)_2(aq) + _ NaSO_4(aq) Observa
_______CuSO_4(aq) + _ NaOH_(aq) rightarrow _ Cu(OH)_2(aq) + _ NaSO_4(aq) Observations before heating: Cu(OH)_2(s) rightarrow Observations after heating: Full Equation: _HCl_(aq) +…
________ Mg + _____ HCl Rightarrow ______Pb(NO_3)_2 +______ NaCI Rightarrow ____
________ Mg + _____ HCl Rightarrow ______Pb(NO_3)_2 +______ NaCI Rightarrow ______ Cl_2 + _____ NaBr Rightarrow ______ Al_2O_3 + H_2O Rightarrow Sodium bromide and Lithium metal r…
________ is an enzymatic activity that hydrolyses the bond linking the completed
________ is an enzymatic activity that hydrolyses the bond linking the completed polypeptide chain and the P site tRNA. Prominent prokaryotic posttansiational modifications includ…
_________ which one of the following salts is insoluble? NH_aCl Ca(NO_3)_2 NaCO_
_________ which one of the following salts is insoluble? NH_aCl Ca(NO_3)_2 NaCO_3 Na_2S zn(CH_3COO)_2 _________ Complete the following statement: In Charles' law, the volume of a …
___________ are organic molecules which rotate the plane of polarization of plan
___________ are organic molecules which rotate the plane of polarization of plane-polarized light. __________ is the reason for "handedness" in molecules; the property of an objec…
____________ A voltaic cell has an E_cell^degree of 0.23 V under standard condit
____________ A voltaic cell has an E_cell^degree of 0.23 V under standard conditions. What can you conclude K_eq for the reaction? Keq 1 K_eq = 0 K_eq = 1 K_eq = E_cell^degree ___…
____________ is used to determine which elements, ions, compounds, etc. are pres
____________ is used to determine which elements, ions, compounds, etc. are present in a sample. physical analysis forensic analysis qualitative analysis quantitative analysis whi…
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