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340.0 gallons of 15 M nitric acid were added to a lake. The initial pH of...
Tell whether a 0.20M solution of the following salts will be acidic, basic, or neutral. Rb2SO3...
Post lab question reguarding bomb calorimetry: Heat capacity for calorimeter: 10403.64 J/◦C Delta H TTCC: -6864.20...
if an allele is dominant, then: a. one allele can mask the expression of a recessive...
Consider the following reaction: CO2(g)+CCl4(g)⇌2COCl2(g). Calculate ΔG for this reaction at 25 ∘C under the following...
The binding energy for electrons in cesium is 3.43 x 10^-19 J. What colors of light...
Which is higher in energy , an He+ ion with an electron in an n=3 orbital...
A 2.50-kg block of hot iron (cFe = 0.45 J/g K; Tin = 300. oC) is...
When 2.0 g of sodium perchlorate (NaClO4) are mixed with 100 mL of a 0.5-M solution...
A gas turbins has TH = 1600K and TC=800K. Hot exhaust from the gas turbine is...
What mass of Ag3PO4 (molar mass= 418.5754 g/mol) is produced from the combination of 25.0 mL...
Two drug candidates were tested in a cell-based assay. Addition of drug candidate 1 resulted in...
What is the electron configuration of each of the following ions? Use the noble gas abbreviation...
A. The activation energy of a certain reaction is 42.0 kJ/mol . At 29 ∘C ,...
A concentration cell based on the following half reaction at 274 K Mg2+ + 2 e-...
Write the electron configurations for the following atoms. Enter full electron configuration in order electrons fill...
Suppose that a certain microwave oven has radiation having a wavelength of 11.2 cm. (i)...
3rd time to post this question. Found in the gas phase the Be+3 cation has an...
The solubility products of PbSO4 and SrSO4 are 6.3×10-7 and 3.2×10-7, respectively. What are the values...
At 295 K and 1.00 atm, assume that 20. mL of NO gad reacts with 20....
What is the molar solubility of calcium oxalate, CaC2O4, in a 0.203 M calcium chloride solution?...
The solubility of silver bromate, AgBrO3, in water is 0.0072 g/L. Calculate Ksp.
Suppose you have 1.00 Liter of an aqueous buffer containing 60.0 mmol benzoic acid (pKa=4.20) and...
Using values from Appendix C of your textbook, calculate the value of Keq at 298 K...
Determine the rate law for the reaction 2A+3B---> C [A1] (m) [B] (m) Rate (mol/L*s) 0.15...
Consider the gas phase reaction shown below. CH4(g) + CF4(g) o CH3F(g) + CHF3(g) Will the...
The activation energy of a particular reaction is 245 kJ/mol. How many degrees above room temperature...
In lab, scientists often use percentages to describe concentration. When making a solution, percentage can be...
At a certain temperature, the equilibrium constant for the following chemical equation is 3.60. At this...
Explain the Arrhenius Equation, k = Ae-Ea/RT, in your own words. How does the Arrhenius Equation...
The rate of the iodine clock reaction can be represented by the formula rate = k...
Part A If Kb for NX3 is 6.0×10−6, what is the pOH of a 0.175 M...
A saturated solution of Cu(IO3)2 was prepared in 0.015 M KIO3. The copper concentration was found...
A 25.0 mL of 0.175M H3PO4 reacts with 25.0 mL of 0.205 M KOH. Write a...
Nitric oxide is formed in automobile exhaust when nitrogen and oxygen in air react at high...
The radioactive decay of thallium-206 to lead has a half-life of 4.20 min. Strarting with 5.10*10^22...
A 5.00g sample of TNT (C7H5N2O6) is burned in a bomb calorimeter with a heat capacity...
Plot the following data as absorbance versus[XX] as a calibration curve: Absorbance 0.0453 0.097 0.14 0.35...
Using the ligand ethylenediamine indicate and draw the structures of the possible complexes synthesized from CuSO4...
For 300.0 mL of a buffer solution that is 0.2604 M in CH3CH2NH2 and 0.2404 M...
Calculate the volume (in mL) of CO2 at 25 oC and 1.0 atm dissolved in a...
Identify the hybrid and non-hybrid atomic orbitals (s, p, sp, sp2, sp3) formed by the following....
How much heat (in kJ) is required to warm 13.0 g of ice, initially at -10.0...
Calculate the pH of the following: A. 10. 0 ml of 0.100 M HC6H5O2 (Ka =...
Henry's law constant for CO2 at 38oC is 2.28 x 10–3 mol/L\cdot⋅atm. Calculate the pH of...
4. If we were to use a solvent for an aldol reaction, which of the following...
What is the concentration of free Mn2+ in a 0.03 M solution of MnY2- buffered at...
At a certain temperature a 23 L container hold 4 gases at equilibrium. The masses are...
When a plant becomes cold adapted, the composition of the plant membrane changes. What changes in...
1) An open tubular GC column has an inner diameter of 300 micrometer and it is...
How many moles of Fe3+ can be reduced by 1 mL of 0.473 M hydroxylamine solution?
explain why alum crystals are washed free off impurities with ethanol ice water mixture rather than...
For the following reaction, Kc = 255 at 1000 K . CO (g) + Cl2 (g)...
What is the pH of a 0.100 M solution of NaC2H3O2 when Ka(HC2H3O2) = 1.8 X...
Propose methods for the preparation of pentanoic acid from the following compounds. a. 1-pentanol b. pentanal...
Which of the following can result in deviations from Beer\'s law when the path length is...
The half-equivalence point of a titration occurs half way to the end point, where half of...
Answer the following about chromatography a. A normal phase column chromatography for the separation of a...
Q:Why is it preferable to use a metal ion buffer to achieve pM = 9, rather...
Above what Fe2 concentration will Fe(OH)2 precipitate from a buffer solution that has a pH of...
In the following reactions, which of the reactants are the acid/bases: A. Na2O + SO3 →...
A river containing 1.7 mg BODL/L and 6.8 mg DO/L receives a 6.4-ft3 /s agricultural effluent...
Calculate the theoretical yield of [Cu(NH3)4]SO4 H2O from 2.00 g of CuSO4 CuSO4 --> Cu2+ +...
Do a substance search on Tobermorite to find the following information needed to complete the list....
Use the localized σ/delocalized π approach to develop a bonding scheme for the thiocyanate anion SCN–...
What amount of silver chloride will form when 100.0 mL of 0.400 M silver nitrate is...
Write the formulas of the compounds formed by specified cations with the following anions: Cl−, NO2−,...
A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As...
You are given the following data: H2(g) --> 2H(g) Delta H degrees=436.4 kJ/mol Br2(g) --> 2Br(g)...
Given that: 2Al(s) + 3/2O2(g) --> Al2O3(s) Delta H degrees rxn =-1601kJ/mol and 2Fe(s) + 3/2O2(g)...
When the Cu2+ concentration is 1.40 M, the observed cell potential at 298K for an electrochemical...
The initial temperature of 100.86 g of 0.1 M HCl solution in a calorimeter was 24.9...
Suppose you have 1 atm of gas A and 1 atm of gas B. If A...
HBr(aq) + NaOH(aq) → H2O(l) + NaBr(aq) 25.00 mL of an HBr solution of unknown molarity...
What is the pH of a 8.2× 10–8 M solution of HCl(aq) at 25 °C? Report...
Concentraion of NaOH = 0.1023 M Volume of acetic acid = 20 ml Volume of NaOH...
(a) [4 marks] Calculate the solubility (in g/L) of lead fluoride, PbF2(s) in pure water. Ksp...
Rank each of the following compounds in decreasing order of reactivity towards Friedel-Crafts alkylation. Most reactive...
semisolid media such as MIO are used to determine motility. Another such medium is SIM (sulfide,...
Write the balanced neutralization reaction between H2SO4 and KOH in aqueous solution. Phases are optional. 0.450...
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