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what is the activation energy(Ea) of a first order reaction is the reaction rate constant(k) increases...
Please answer and explain 6. It takes 7.21x10-19J of energy to remove an electron from an...
a given sample of a xenon fluoride compound contains a molecules of type XeF(sub)n, where n...
Calculate the standard entropy, ΔS°rxn, of the following reaction at 25.0 °C using the data in...
A hydrocarbon of unknown structure has the formula C13H12. On catalytic hydrogenation over the Lindlar catalyst,...
- What is an example in which a source of natural water would be basic? acidic?
3. Some of the major peaks in the mass spectrum of 1-bromo-2-methyl-3- cyclohexyl-1-propene [BrCH=C(CH3)CH2C6H11] are listed...
A) Calculate the solubility (in grams per 1.00×102mL of solution) of magnesium hydroxide in a solution...
1.) The specific rotation, [?]D, for sucrose is +67. What is the observed rotation for a...
For which of the following molecules would the intermolecular forces be influenced mainly by hydrogen bonding?...
Use the volume at the equivalence point of 16 mL from the second titration to determine...
An aqueous solution contains 6.09% phenylalanine (C9H11NO2) by mass. Assume the phenylalanine is non-ionic and non-volatile....
1.A) A student used the method MM=g*R*T/P*V for determine the molar masss of an unknown volatile...
Consider the titration of 20.00 mL of 0.306M NH3 Calculate the pH of the solution after...
#1 The stretching frequencies for the dioxygen complexes of oxyhemocyanin and oxyhemerythrin are observed at 744...
2. Order the reactivity of the compounds evaluated in the "Steric Effects" experiment from slowest to...
What happens to retention time of a compound as you: a) decrease column temperature. b) increase...
Consider 3Fe+2 —> 2Fe+3 + Fe Calculate E and determine if this is a spontaneous or...
Consider the titration of a 26.0-mL sample of 0.180 M CH3NH2 with 0.145 M HBr. (The...
Convert the following values into mmHg A)Standard pressure B)31.2 psi C)7.0 atm D)32.0 in.Hg E)44.4 Pa
A zero-order reaction is 40% complete at the end of 50 minutes. What is the value...
Structural isomers of Heptane. Questions : 1. Build a model for the straight chain isomer of...
Consider a saturated solution of the salt MX3 , which M is a metal cation with...
In Quantitative Analysis, when and why do we need to consider activities?
Consider the following reaction: Fe3+(aq)+SCN?(aq)?FeSCN2+(aq) A solution is made containing an initial [Fe3+] of 1.1
The average human body contains 6.50 L of blood with a Fe2+ concentration of 2.30×10−5 M...
12. Given: 2Na(s) + O2(g) → Na2O2(s) ΔGo = -447 kJ Na2O(s) + Cu(s) →...
Which reaction of these potential acids and bases does not occur to any appreciable degree due...
What is ΔG at body temperature (37.0° C) if the concentration of A is 1.5 M...
Diagram the process of electron transport (from NADH to O2 ) and oxidative phosphorylation in a...
Explain the following facts, metallic gold has the highest electron affinity energy of any metal outside...
Use the Born-Haber Cycle to calculate the lattice energy of an ionic solid which includes a...
Consider an amphoteric hydroxide, M(OH)2(s), where M is a generic metal. M(OH)2(s) <--> M2+(aq) + 2OH-(aq)...
Which of the following reactions will occur spontaneously as written? What will the Ɛ°rxn be under...
Given the DNA template strand 3' GTCGAACGT 5', write the amino acid sequence in the N-terminal...
Consider how to prepare a buffer solution with pH = 9.32 (using one of the weak...
decsribe what must be done with the standard enthalpy of reaction if a). a reaction is...
7. Dyes that exhibit changes in color with respective to changes in their surroundings are called...
The compound whose 1H-NMR and 13C-NMR spectra are shown has the molecular formula C8H9Br. Propose a...
A high temperature reaction vessel is charged with 0.5860 mol of iron powder and 35.1 L...
Which one of the following metal complex ions has three unpaired electrons? A) [Mn(H2O)6]2+ (high spin)...
Which of the following metals would act as a sacrificial anode (cathodic protection) for iron? Check...
The label of a fertilizer states that the fertilizer contains 18.0% P4O10 by mass. What is...
A solution is made by dissolving 3.62 grams of AlBr3 in 9.52 grams of water. Calculate...
A hot air balloon is filled with 1.27 x 10^6 L of an ideal gas on...
1) What are the advantages of hollow asymmetric membrane compared to symmetric membrane ? 2) What...
A 25.00 mL aliquot of 0.100 F malonic acid (propanedioic acid) is titrated with 0.100 NaOH....
How many moles of K2CrO4 are in 34.03 g K2CrO4? b) How many moles of CaC2O4·H2O...
Which response has both answers correct? Will a precipitate form when 250 mL of 0.33 M...
Acetate buffer is often used as a buffer solution for protein studies at acidic pH (from...
upon heating 125 g MgSO4 ×7H2O how many grams of water can be obtained
The solubility product constant for Zn(OH)2 is Ksp=3.00*10^-16 The formation constant for the hydroxo complex Zn(OH)4^2-...
How would the wettability of silica behave on changing silanol surface anchoring groups from –O3SiCH3 to...
the solubility of N2 in blood at 37C and at a partial pressure of 0.80 atm...
An electron has a de Broglie wavelength of 215 nm, what is the speed of the...
A helium-filled balloon at 315.0 K and 1 atm, contains 0.30 g He, and has a...
A flask is charged with 1.800atm of N2O4(g) and 1.00 atm NO2(g) at 25 ?C, and...
What is the final temperature (in C) of 1.50 g of water with an initial temperature...
Depending upon the conditions, potassium permanganate may form Mn(s), Mn2+, or Mn3+. Write a balanced half-reaction...
Water has a heat of vaporization 40.7kJ/mole and a specific heat of 4.18J/g o C. How...
Be sure to answer all parts. Determine the partial pressure and number of moles of each...
Peptides solution contain 0.1% TFA, how to remove TFA?
Ligand1 is an anionic tridenate ligand,consisting of three diffrent hetro cyclic rings joined together, which reacts...
Draw the most stable newman projection for 2-methylbutane looking through C2-C3.
Using the bond enthalpies in the Average Bond Enthalpies table, determine the approximate enthalpy (in kJ)...
Calculate the molar solubility of CuX(Ksp=1.27×10−36) in each of the following. a) 0.23 M CuCl2 b)...
Describe the change in hybridization (if any) of the Al atom in the following reaction: AlCl3...
1. A woman expends 92 kJ of energy in walking a kilometer. The energy is supplied...
When one mole of HCl reacts with one mole of NaOH, 1000 calories of heat is...
1. The radius of a copper (Cu) atom is roughly 1.3 × 10−10 m. How many...
A compound has a strong absorption at 2.11x1016 Hz. What is the λmax( in Å (angstroms))...
2a) A mixture of hydrogen and krypton gases, in a 5.66 L flask at 11 °C,...
calculate the molar solubility of silver iodide in a) water b) in 2.0 M NH3
When species combine to produce a coordination complex, the equilibrium constant for the reaction is called...
1. Consider the following reaction at 298K. Fe2+(aq) + Zn (s) --> Fe (s) + Zn2+(aq)...
Identify the compound with covalent bonding. Identify the compound with covalent bonding . K2S KBr Ar...
Describe 6 or more limitation or unsuitable conditions of Beer’s law
Iron(III) oxide reacts with carbon monoxide according to the equation: Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g) A reaction mixture initially contains...
1.An atom has a diameter of 1.00 Å and the nucleus of that atom has a...
1. Write complete equations from the following information: (f) Aniline (aminobenzene) react with excess bromine...
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