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A) A compound composed of sulfur and fluorine is found to contain 62.79% by mass of...
Draw the mechanism for the primary oxidation of 2-ethyl-1,3-hexanediol with sodium hypochlorite.
the equilibrium constant Kc for the reaction c--> d+e is 5.30*10^-5. the initial composition of the...
What is the pH of a solution prepared by mixing 800 mL of 0.075M potassium dihydrogen...
The decomposition of A to B is a first-order reaction with a half-life of 85.9 min...
1. Explain the shape of the water molecule. How is its unequal charge distributed over that...
Thin Layer Chromatography (TLC) polarity questions Is silica gel polar or non polar and why? How...
3. A type of flexible polymer is polymorphic and experiences a change in crystal structure at...
22.0 mL of 0.128 M diprotic acid (H2A) was titrated with 0.1017 M KOH. The acid...
A certain reaction has an activation energy of 53.03 kJ/mol. At what Kelvin temperature will the...
Hydrogen reacts with nitrogen monoxide to form dinitrogen monoxide (laughing gas) according to the following equation....
1) A(aq) + B(aq) → 2C(aq) If Kc = 3.4 x 1010, this indicates that ........
Determine if the following statements are true or false. _____(13)_____Conjugated dienes react more quickly than isolated...
What is the instantaneous rate of the reaction at t=800. s? Time (s) [A] (M) 0....
How many grams of ethylene glycol (C2H6O2) must be added to 1.10 kg of water to...
Calculate the mass of propylene glycol (C3H8O2) that must be added to 0.330 kg of water...
Tooth enamel consists mainly of the mineral calcium hydroxyapatite, Ca10(PO4)6(OH)2. Trace elements in teeth of archeological...
. The i value assumes that an ionic compound dissociates 100% in solution. Is this true?...
Suggest a synthesis of C6H5CH(OH)CH(OH)C6H5 from benzoin.
A 2.50 mol sample of benzene (C6H6, 78.11 g/mol) was burned in a bomb calorimeter with...
A 1.762 g sample of impure H2C2O4 (MW =90.04) was dissolved in water and the impurities...
The freezing point of biphenyl (molar mass 154g/mole) is 71.0 degrees. When 1.240 g of benzophenone...
Using this information together with the standard enthalpies of formation of O2(g), CO2(g), and H2O(l) from...
Consider the reaction: Br2(g)+Cl2(g)⇌2BrCl(g) Kp=1.11×10−4 at 150 K. A reaction mixture initially contains a Br2 partial...
1. How many grams of CaCO3 will dissolve in 2.80 x102 ml of 0.040 M of...
For 1 kg of CO, calculate the hydrogen required and the resulting products for ethylene (C2H4),...
I'll get a question like the one below and my professor says that we need to...
A simple (non-cyclic) heat engine. Consider a cylinder containing an ideal gas under a piston, as...
The bending normal mode for water occurs at about 1885 cm-1 in the infrared spectrum. Explain...
Calculate the change in Gibbs free energy for each of the following sets of ΔHrxn ∘,...
(a) Show that the formula mass of NaCl is 58.442 +/- 0.006 g/mol. (b) To prepare...
What percentage of the mass of the isotope magnesium-24 do its neutrons contribute? proton = 1.0073...
Toluene has contaminated a city's drinking water supply. An activated carbon system will be designed to...
The Curie (Ci) is a unit of radioactivity named after Marie Sklodowski-Curie and Pier Curie, it...
1. A solution of 7.50 mg of a small protein in 5.00 mL aqueous solution has...
A 1H NMR signal is observed at 227.0 Hz (downfield of TMS) on a 1.40 ×...
calculate the number of atoms of oxygen in 235.67g of ZnCO3
Liquid pentane is stored in a large vessel that has access to the atmosphere. The local...
Let's imagine that you were going to start a company that produces spectroscopes to sell to...
Calculate the energy difference (ΔE) for the electron transition of n = 5 to n =...
You designed a camping stove that uses liquid propane as fuel and is so efficient that...
The air pollutant NO is produced in automobile engines from the high-temperature reaction: N2(g)+O2(g)⇌2NO(g) . Kc=1.7×10−3. Calculate...
What is it meant by an ideal gas? Under which conditions does a real gas behave...
Write the balanced equation for the reaction of C6H5MgBr with benzaldehyde.
For chemical reactions involving ideal gases, the equilibrium constant K can be expressed either in terms...
An unknown mass of NaOH is dissolved in 500g of H20. This solution is neutralized by...
A 1.30 M solution of CaCl2 in water has a density of 1.11g/mL. What is the...
Explain the difference between chain growth and step growth polymerization.
A certain substance has a heat of vaporization of 64.13 kJ/mol. At what Kelvin temperature will...
A material is made from Al, Ga, and As. The mole fraction of each element is...
Fluoride ion is poisonous in relatively low amounts: 0.2 g of F - per 70 kg...
Calculate the alloy density, rave, for a 75 wt% Au, 25 wt% Ag alloy known as...
Fill in the gaps in the following table, assuming each column represents a neutral atom: symbol...
You will you use TLC to evaluate if your column chromatography separation was successful. The mobile...
You prepare a buffer solution from 10.0 mL of 0.100 M MOPS (3-morpholinopropane-1-sulfonic acid) and 10.0...
How many grams of Ba3(PO4)2 can be made when 100 mL of 0.300 M BaCl2 are...
Consider a reaction that has a positive ΔH and a positive ΔS. Which of the following...
a student has 10.0 ml of a phosphate solution that contains .124 moles per litre of...
Below is the background info for the lab assignment. The 4 blank boxes are the questions...
Carbon monoxide gas reacts with elemental oxygen gas to form carbon dioxide gas. In a 1.00...
Radioactive gold-198 is used in the diagnosis of liver problems. 198Au decays in a first-order process,...
Give reasons why the gauche conformation of butane would show a lower energy at a dihedral...
The value of Kc for the reaction between water vapor and dichlorine monoxide is 0.0900 at...
calculate [H3O+], [OH-], for each of the following. Label the solution acidic, basic, or neutral 1....
A quantity of CO gas occupies a volume of 0.70 L at 0.90 atm and 318...
For the reaction 2A(g) + B(s) ⇌ C(g) + D(g) at 700 °C, Kc = 0.0389....
53.6g of calcium chloride is dissolved in enough water to give 400ml of solution. what is...
Under some set of conditions, nitrogen gas reacts with oxygen gas to form dinitrogen monoxide. You...
So my chemistry class did a titration using EDTA and seawater. We were trying to determine...
A) Given the two reactions 1) H2S<--> HS- + H+, K1= 9.21x10^-8 and 2) HS- <-->...
Given 7.15g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be...
Explain how an enzyme-linked imunnoassay (ELISA) amplifies the response to analyte.
8H2S(g)+4O2(g)→8H2O(g)+S8(g) Δ[H2S]/Δt = -0.049 M/s . Find Δ[O2]/Δt Find Δ[H2O]/Δt Find Δ[S8]/Δt and find the rate...
An industrial wastewater flowing at a rate of 37,000 m3/day is contaminated by 187 mg/L of...
Explain why heating a mixture of lumps of sulfur and zinc does not lead to reaction...
A certain substance contains only C,H,O. when 2.66 grams of the compound is burned completely, 4.50...
For rotational motion of molecules the quantum number J is used in place of l (to...
Solid amonium nitrate can decompose to dinitrogen oxide gas and liquid water. What is change in...
(1) Most redox reactions are performed under non-standard conditions. Consider the permanganate to manganese (II) ion...
.Sketch out the structure and name the functional group for each compound below: a) C2H6 b)...
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