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A chemistry graduate student is given 450.mL of a 0.90M acetic acid HCH3CO2 solution. Acetic acid...
What mass of melamine, C3N3(NH2)3, will be obtained from 180.0 kg of urea, CO(NH2)2, if the...
Write a balanced redox reaction for TCE to cis-DCE (oxidation half reaction is benzene to CO2)
In a titration of 100 mL 0.10 M Nitrous acid HNO2 (Ka= 4.5*10-4) against a 0.10...
What is the advantage of heating the Flask 2 reaction mixture?
Chloroform is an internal standard in determination of the pesticide DDT in a polarographic analysis in...
a What type of electron orbital (i.e., s, p, d, or f) is designated by the...
What is the pressure exerted by 1242 g of carbon monoxide gas when it is confined...
A cubic crystal with interatomic spacing of 0.28 nm is used to select y raysof energy...
A nonpolar aromatic compounds were separated by high performance liquid chromatography on an C18 column. If...
I need a book about the subject of '' determination of polyphenols by cyclic voltammetry ''
Predict whether creatine kinase will operate in the direction of ATP synthesis or phosphocreatine synthesis at...
This question is about the chemistry of Iron Man. In July 2016, researchers found a certain...
A certain volume of 1M NaOH is needed to titrate 500mL of a 0.2M solution of...
Given the following information, calculate ?rG
What additives may be used to prevent acid catalyzed hydrolysis of drugs containing ester moieties in...
There are two different routes to the Williamson synthesis of 2-methyltetrahydrofuran, but there is only one...
Enough of a monoprotic acid is dissolved in water to produce a 0.0146 M solution. The...
A compound contains only nitrogen and oxygen and is 30.5% nitrogen by mass. A gaseous sample...
Calculate the pressure of the O2 produced when 22.0g of H2O2 reacts and the gas is...
iii) Calculate ΔH for the reaction 2 Al (s) + 3 Cl2 (g) → 2 AlCl3...
Why BrF3 is T-shape? If it were trigonal plane, Lone pair would be stable in xy>0...
In the ICl2- ion, how many valence electrons are there surrounding the central iodine atom?
how many moles of sulfate ions are in a 300.ml solution of 0.010 M solution of...
An accidental spill results in a total volume Vo = 100 gallons of a toxic liquid...
Which one of the following molecules does not have delocalized orbitals ? A) SO2 B) C6H6...
10. An acidic aqueous solution has [H3O+] = 2.0 × 10-4 M, what is the [OH−]...
Write the (ground state) electronic configuration for each of the following. tin thallium radon telluride ion...
calculate the concentration of a cyanide ions in a solution that is 0.70 M in HCN...
9. A 32.0 g sample of water at 15.0 oC absorbs 960 cal of heat. What...
Consider the reaction 2NO2(g)?N2O4(g) Calculate ?G at 298 K if the partial pressures of NO2 and...
Write the balanced reaction equation for the complete combustion of carbon in air. What are the...
Calculate the volume occupied by 60 g of oxygen gas (O2) at a temperature and pressure...
The enthalpy of formation of C(coal,s) is -10kJ/mol, and the enthalpy of formation of carbon monoxide...
Carbon monoxide gas reacts with hydrogen gas to form methanol. CO(g)+2H2(g)?CH3OH(g) A 1.75L reaction vessel, initially...
4. A 5.7 x 10-4 m3 aerosol can is filled with 0.0875 moles of compressed gas....
9. A 900 mL chamber contains 2.184 g of N2 and 1.45 g of O2 at...
Describe the texture of sodium soap.
Valine is an amino acid with the formula C5H11NO2. Determine the number of moles of carbon...
In Beckmann rearrangement, Cyclohexanone oxime and its Rearrangement to ε-caprolactam why do we use hydroxylamine hydrochloride...
Write the balanced reaction for the mixing of aqueous calcium nitrate and aqueous aluminum sulfate which...
An electrolytic cell is set up using a solution of aqueous Cu(NO3)2, and an external 6V...
Determine the molar mass of each of the following gases: 1) 0.78 g of a gas...
1. Draw a lewis diagram of a hydrogen sulfide molecule 2. Now replace the electrons with...
Why hydrogen spectrum shows four lines in the visible region, helium shows eight, sodium shows two...
Which of the following set of quantum numbers (ordered n , ℓ , mℓ , ms...
1. How many MOLECULES of sulfur dichloride are present in 3.02 grams of this compound ?...
The ksp of metal hydroxide, Co(OH)2 is 5.92e-15. Calculate the solubility of this compound in g/L
The neptunium series involves the nuclear decay of, amongst others, neptunium-237 into thallium-205. If this series...
Use tabulated values of ∆?̅ ? 0 to compute the enthalpy of reaction ∆???? 0 for...
It's not actually a new question, it's just that this site somehow has yet to allow...
Bovine serum albumin (BSA) is a biochemically useful protein. A 0.239 gram sample of bovine serum...
In general, a liquid state will have higher entropy than a solid-state. true and false
Explain why the chemical formula of ionic compounds are given as empirical formulas while covalent compounds...
The equilibrium constant expression for a reaction can be written if the balanced equation is known....
For 470.0 mL of a buffer solution that is 0.160 M in CH3CH2NH2 and 0.145 M...
How many mL of hydrogen would be collected at a pressure of 765 torr and 22oC...
A+2B --> C -ra=kCaCb^2 Where k-0.01 s1(gmoLt 500c) CA-concentration of A. gmolL CB-concentration of B, gmol/L....
It was found that the composition by weight % in coral skeleton was 21.23 for calcium,...
What is the minimum amount of [Ag+] that a cell is able to function (EMF=0). Use...
Write Bronsted acid-base equilibrium equations for the following: b) Show the acid-base conjugated species, labeling all...
draw the structure (R)-3-bromocyclopentene
The enzyme-catalyzed conversion of a substrate at 298 K has Km = 0.032 mol dm-3 and...
For the following analytes and situations, indicate an appropriate spectroscopic technique and briefly explain why your...
Use the following information on Al to determine the amounts of heat for the three heating...
What mass of calcium is required to produce 4.2 g of calcium bromide, starting with 3.4...
the reaction of lithium naphthalene (LiC10H8) with an alkyl fluoride is an sn2 reaction for this...
is the structure if acetominophen similar to be structure of aspirin? In what way? would acetaminophen...
Sodium saliylate has been used as an analgetic.Drow the structure of this compaund and show how...
3. A buffer is made by adding 0.3 moles of CH3COOH and 0.3 moles of NaCH3COO...
Copper dissolved in nitric acid produces copper(II)nitrate. After reaction with sodium hydroxide and heating, copper nitrate...
The equilibrium constant, K, for the following reaction is 1.80×10-2 at 698 K. 2HI(g) --> H2(g)...
The thermodynamic properties for the species involved in the Zn(s)|Zn2+(aq)||Pb2+(aq)|Pb(s) cell are given below. Substance ∆G°f...
The average kinetic energy of the molecules in a gas sample depends only on the temperature,...
When a solution is heated, do all of the molecules attain the same kinetic energy, or...
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid,...
The equilibrium constant, K, for the following reaction is 5.10×10-6 at 548 K. NH4Cl(s) --> NH3(g)...
A compound of molar mass 182 contains only carbon, hydrogen, sulfur, and bromine. Analysis shows that...
Consider the titration of a 23.4 −mL sample of 0.125 M RbOH with 0.100 M HCl....
a. What is the pH of a solution obtained from adding 184 ml 0.57 M NaOH...
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