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1a)Calculate the pH of 50mL of 0.750M hydrazine (N2H4, Kb=3.0×10-6) mixed with 32mL of 0.750M HCl....
A weak acid (HA) has a pKa of 4.478. If a solution of this acid has...
For an equilibrium reaction 2 A + 3 B ↔ 2 C, the equilibrium constant Kc...
Please explain and show all work on how to solve this: The solubility product of CaF2...
1. At one point during an analysis of the reaction shown below, compound W was used...
Calculate the pH and the pOH of each of the following solutions at 25 degrees Celsius...
Answer the following about NMR analysis of ACETONE: 1. number of signals 2. integration 3. splitting
Consider a sample of H2 and N2 at 1.00 bar and 25oC with mole fraction (X)...
From the equilibrium concentrations given, calculate Ka for each of the weak acids and Kb for...
Why does a standardized NaOH solution need to be kept in a closed container?
How does a strong acid/base titration change, if congo red is used instead of phenolphthalein? For...
use the extended debye-huckel equation to estimate each of the following activity coefficients. assume in each...
A fuel containing 40 mol% CH4 and 60 mol% C2H6 enters a furnace at a rate...
1)Calculate the number of molecules of the compound and the number of atoms of each of...
An isobaric reactor is fed an equimolar mixture of carbon monoxide (CO) and steam (H2O) at...
For a given binary system at constant T and P, the liquid molar volume of the...
What volumes of 0.51 M HNO2 and 0.51 M KNO2 must be mixed to prepare 1.00...
Initially, 0.50 atm each of PCl3(g) and Cl2(g) is added to a reaction vessel. Given the...
1) One phosphorus atom for every three chlorine atoms formular ? 2) One phosphorus atom for...
For PbCl3−, Kform = 2.5 × 101. Use this information plus the Ksp for PbCl2 to...
Preparation of ethyl acetate
Preparation of aspirin
If you would like to increased the pH of the stomach from 1.00 to 2.00 using...
draw titration curve and determine pHs A Titration Curve Gives Us A Lot Of Information About...
Calculate the change in pH when 3.00 mL of 0.100 M HCl(aq) is added to 100.0...
SALTS: For each of the following salt solutions, record the experimental pH, determine the theoretical pH...
The half-equivalence point of a titration occurs half way to the end point, where half of...
Zeolites are used to soften hard water through ion exchange. How does the crystal structure provide...
how much silica can dissolve in water? k=10^-2.78
For the diprotic weak acid H2A, Ka1 = 2.6 × 10-6 and Ka2 = 8.6 ×...
Balanced molecular and net ionic equations of: NaHCO3 + BaCl2
Balanced molecular and net ionic equations of: NH4OH + BaCl2
How could I do determination of H2SO4, HCl,CH3COOH, H3PO4 in a mixture solution by classical method?
The standard free energy of activation of a reaction A is 88.2 kJ mol–1 (21.1 kcal...
When mixtures of gaseous H2 & Cl2 react, A product forms that has the same properties...
what is the wavelength of a photon that has two times less energy than that of...
What volumes of 0.55 M HNO2 and 0.55 M LiNO2 must be mixed to prepare 1.00...
Residues of the herbicide atrazine (C8H14ClN5) in water can be detected at concentrations as low as...
27.26 mL 0.040 M Na2[H2edta] solution is required to reach the end point when added to...
how much faster will ammonia gas diffuse compared to hydrogen chloride gas ?
What differences would you expect to see in the IR spectra of benzaldehyde and the IR...
3. ) if the calculated molarity of the NaOH solution was lower than the true molarity,...
An internal standard calibration curve was generated for the determination of ethyl acetate by gas chromatography,...
Suppose 0.891g of ammonium acetate is dissolved in 50.mL of a 0.10M aqueous solution of sodium...
Enough of a monoprotic acid is dissolved in water to produce a 0.0168 M solution. The...
Sodium carbonate, Na2CO3(s), can be prepared by heating sodium bicarbonate, NaHCO3(s). 2NaHCO3(s) ⇌ Na2CO3(s) + CO2(g)...
How many mL of a 0.81 M sodium hydroxide solution are required to react completely with...
The acid-dissociation constant for hypochlorous acid (HClO) is 3.0×10−8. Part A Calculate the concentration of H3O+...
Can you predict the absolute configuration ( R or S ) of an amino acid from...
What would you expect to observe if you added a saturated NaCl solution to a pink...
An acid with a pka of 3.36 has a concentration of 0.106M. You are given 39.7mL...
aluminium metal reacts with iron3 oxide to produce aluminium oxide and iron metal how many moles...
Part A - Identifying Spontaneous Processes The process of iron being oxidized to make iron(III) oxide...
what is determined by the magnitude of intermolecular forces in a liquid and is a measure...
if 45.55mL of 0.0105 M EDTA solution was needed to titrate the Mg in a 0.2600g...
when using Beer's Law, there are several limitations that must be taken into account. Describe 5...
The reaction between the hydrochloric acid and the calcium carbonate is: 2 HCl (aq) + CaCO3...
1) Initially, only H2S is present at a pressure of 0.244 atm in a closed container....
1)Phosphorus pentachloride decomposes according to the chemical equation,A 0.170 mol sample of PCl5(g) is injected into...
Supposed that 6.0 g of a mixture of naphthalene and anthracene is dissolved in 300 g...
At a certain temperature, the equilibrium constant for the following chemical equation is 3.00. At this...
The air in an inflated balloon (defined as the system) is warmed over a toaster and...
Suppose that 28 g of each of the following substances is initially at 26.0 ∘C. What...
Titanium reacts with iodine to form titanium(III)iodide, emitting heat. 2Ti(s)+3I2(g)→2TiI3(s)ΔHorxn = -839 kJ Determine the masses...
In a sodium carbonate/ bicarbonate analysis a 0.4057g sample required 15.65 ml of 0.1690M HCL solution...
A system releases 662 kJ of heat and does 140 kJ of work on the surroundings....
1. Write an equation for each acid or base showing its ionization in water, and write...
Environmental health project. I am doing it on the effects of nutrition in the skeletal system....
Consider the reaction below. If the nitrosyl bromide (NOBr) is 17% dissociated at 55 degrees Celsius...
Explain how (in procedures step format), the reaction of Ni(OH)2 with NH3 would enable you to...
For the reaction CH3COOH(aq) + H2O(l) <--> CH3COO-(aq) + H3O+(aq), what is the pH of a...
Estimate the mole ratio of O2 to the sample(benzoic acid, sucrose) and compare the estimate with...
explain why the energetically higher lying ns orbitals are filled with 2 electrons in transition elements...
A 10.67-gram -23.0°C piece of ice drops into a calorimeter containing 150.00-gram 93.7 °C of the...
In standardizing a potassium hydroxide solution, a student finds that 42.63 mL of the base solution...
Co(II) was used as an internal standard to analyze a sample of Ti(IV) with atomic absorption...
Draw a reaction coordinate diagram for the Friedel-Crafts alkylation of 1,4-dimethoxybenzene into 1,4-Di-tert-butyl-2,5-dimethoxybenzene. Be sure to...
How can I separate Zn^2+ , Cu^2+ and Al^3+? Using centrifugation, Sodium hydroxide, Nitric acid and...
In a stereospecific Wittig reaction: Discuss how a carbon nucleophile was generated from benzyltriphenylphosphonium chloride.
Calculate the energy of the emitted photon as well as the wavelength and frequency of electromagnetic...
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