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NH4NO3, whose heat of solution is 25.7 kJ/mol, is the one substance that can be used...
PIPES buffer has a pKa of 6.76 at 25.0oC and 6.6 at 37.0oC. What is the...
Alexander, who weighs 198 lb , decides to climb Mt. Krumpett, which is 5730 m high....
A solution of 0.243 M cysteine is titrated with 0.0608 M HNO3. The pKa values for...
what is the effect of substitute group on cnmr shift for benzene? in details,
A mixture of 0.437 g of BaCl2 • 2 H2O (molar mass 244.27 g/mol) and 0.284...
Part A A sample of ideal gas is in a sealed container. The pressure of the...
Enough of a monoprotic acid is dissolved in water to produce a 0.0184 M solution. The...
what would have been the result if the column was run with the acetone as the...
Dehydrohalogenation of 1,2-dihalides (with the elimination of two molar equivalents of HX) normally leads to an...
How many milliliters of 0.2 M Mg(OH)2 (aq) are required to titrate 25 ml 0.3 M...
What is catalyic cracking in chemistry?
Chemical A is transformed into chemical B with the rate at which B is formed varying...
Cyanic acid, HCNO, is a weak acid with the following equilibrium: HCNO(aq) + H2O(l) ⇌ CNO-(aq)...
A mixture of 35 mole% n-hexane (C6H14) and rest n-heptane (C7H16) is fed to a flash...
Please provide explanation of alkylation could take place on sulfur better than oxygen.
Why are AgCl plates protected from exposure to the light? Why is it essential that you...
15 OC, where the pure vapor pressures are 12.5 mmHg for water and 32.1 mmHg for...
4. 1.56 Kmols/hr of HI is reacted with CH3OH to produce CH3I according to the following...
A metal plating firm is installing a precipitation system to remove zinc. They plan to use...
For each of the following molecules, determine: (a) whether it has polar bonds; (b) what its...
1) Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light...
As a technician in a large pharmaceutical research firm, you need to produce 450. mL of...
Acetic acid is a weak acid. CH3CO2H(aq) CH3CO2-(aq) + H+(aq) When solid sodium acetate, a strong...
1.a)How many milliliters of 0.0998 M NaOH are required to “neutralize” (react completely) with 0.305 g...
ASAP FOR ALL QUESTIONS ABOUT THE Le Chatelier’s Principle LAB Procedure : I ) NaCl (s)...
1) Elemental S reacts with O2 to form SO3 according to the reaction 2S+3O2→2SO3 A) How...
I'm trying to do the balanced Ionic and net ionic equations for the following: 1. Al2(SO4)3+BaCl2...
Isolation of Caffiene from tea leaves What percent recovery could be expected if 0.188 g of...
Determine the equilibrium constant for the following solutions: a) H+(aq) + OH-(aq) H2O(l) b) HCl(aq) +...
A weak acid (HA) has a pKa = 2.77. Assuming the volumes are additive, calculate the...
Calculate Delta G for the following reactions: Rxn 1: CH4(g) + 2 O2(g) --> CO2(g) +...
1. For Each of the following series of measurements values, determine whether any measurements should be...
What statements are true for the standard entropy change for the conversion of ozone to oxygen?...
How is the color of a molecule depend on its size? I know abosrobing different wavelength...
A 58.5 mL sample of a 0.120 M potassium sulfate solution is mixed with 36.0 mL...
For each of the reactions, calculate the mass (in grams) of the product formed when 3.30...
Consider this reaction: 4NH3 + 5O2 --> 4NO + 6H2O If you start with 5.5 moles...
Addition of a strong acid to a solution of acetic acid at equilibrium (HOAc + H2O...
f the pH of a 1.00-in. rainfall over 1600 miles2 is 3.60, how many kilograms of...
A 20.95 g piece of iron and a 25.20 g piece of gold at 100.0 celsius...
Draw the reaction mechanism for the synthesis of methyl diantilis from 3-ethoxy-4-hydroxybenzaldehyde. Use NaOH/NaBH4 to produce...
What regular protein structural units are associated with NH-(alpha)H coupling constants of 4 Hz and 9...
If 5.85mL of 0.1000 M NaOH solution is needed to just neutralize excess acid after 20.00...
5. Two chemicals, A and B, are combined, forming chemical C. The rate of the reaction...
why did nylon 6-6 polymer form only at the interface of the two liquid phases?
what would happen if you used CH3(CH2)4CH2NH2 instead of 1,6-diaminohexane in the synthesis of nylon 6-6?...
a mixture of 73.0 g NH3 and 73.0 g HCl are made to react at stp...
Calculate the molar concentration (molarity) of the HCl soluition and the HC2H3O2 solution using the following...
The activation barrier for an uncatalyzed reaction is estimated to be 15.3 kcal/mol. The activation barrier...
Calculate pH: 5.00 mL of 1.20 M HCl diluted to 0.440 L & A mixture formed by...
H2(g)+I2(g)⇌2HI(g) A reaction mixture in a 3.75 L flask at a certain temperature initially contains 0.760...
I recently performed a lab on Chemical Equilibrium. Here is some background on the experiment: -We...
A sample of 447.9 mg of hydroxylamine (NH2OH) is dissolved in 55.5 mL of DI H2O....
1. What are the water of hydration? 2. What does the dot mean in Salt•nH2O 3....
Suppose that a very concentrated sample read 19 ppm when tested with an instrument calibrated for...
Calculate the number of grams of Cl2 formed when 0.125 mol HCl react with O2. 4HCl...
Mass of beaker:13.50g Mass of unknown: 4.15g Mass of water: 15.7g Freezing point of pure water:...
Calculate the pH of a 1 L solution made by mixing 0.25mol of NH3 and 0.35mol...
Diethyl ether has a much higher boiling point than butane despite having a higher molecular weight....
Question 1 In Part IIB, neutralization of acetic acid and NaOH, what is the limiting reactant...
An enzyme-catalyzed reaction was carried out with the substrate concentration initially three hundred times greater than...
a) Draw a Lewis diagram for TeO42- in which the central Te atom has a formal...
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to...
For phosphoenolpyruvate carboxykinase (PDB code: 3dt4): Display the protein and the ligand using VMD Identify amino...
What is heat? How is heat different from temperature, from thermal energy? How is heat energy...
Assuming that no equilibria other than dissolution are involved, calculate the concentration of all solute species...
Fluoride, in the form of sodium silicofluoride (Na2SiF6), is commonly added to municipal drinking water to...
Consider the reaction Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s) at 69 ∘C , where [Fe2+]= 3.20 M and [Mg2+]= 0.110 M...
An inert gas has a weight density of 0.066 lb/ft^3 and its pressure is to be...
Consider the formation of [Ni(en)3]2+ from [Ni(H2O)6]2+. The stepwise ΔG∘ values at 298 K are ΔG∘1...
why is it important to use a small amount(1-5 mM) imidazole in the wash buffer for...
what is the wavelength ( in nm) of light having a frequency of 4.2×10^13 Hz? what...
Sodium fluoride is added to many municipal water supplies to reduce tooth decay. Calculate the pH...
1.Refer to the phase diagram for carbon dioxide in Figure 11.12. Explain, in terms of the...
How many grams of benzoic acid, C6H5CO2H, are in 3.00 L of a solution whose pH...
An aqueous solution is made by dissolving 14.2g of AL(NO3)3 to 655g of water Kb H2O=...
Determine the pH of each of the following two-component solutions. 0.135 M in NH4Cl and 0.150...
Design a buffer that has a pH of 6.65 using one of the weak acid/conjugate base...
For chemical reactions involving ideal gases, the equilibrium constant K can be expressed either in terms...
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