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what is the [H3O+] of a solution with a pH 1.26? Input answer in scientific notation...
Hemoglobin is a protein having a molar mass of 64500g/mol and containing four atoms of iron(II)....
A scuba diver takes a 2.8 L balloon from the surface, where the pressure is 1.0...
3. Use the pull down menus to write out the following question Zinc Sulfate reacts with...
The hydrogen atomic emission spectrum includes a UV line with a wavelength of 92.323 nm. Photons...
Calculate the ph of a solution prepared by mixing 15.0ml of 0.10M NaOH and 30.0ml of...
Calculate the pH of 1.00 L of a buffer that is 1.00 M in acetic acid...
When I measure the pH of water that contains bromine, I get a pH around 3.5....
A) Why does acetophenone react with p-anisaldehyde rather than self-condensing? B) When butanal and propanal are...
If a hydrogen atom is excited from an n=1 state to an n=4 state, how much...
Commercial hydrochloric acid is 12.1 M. What volume of commercial HCl solution should be used to...
Which of the following is a weak base? Explain. -CH3OH -CH3NH2 -Ca(OH)2 -LiOh -HCOOH
Use the following calorimetric data to calculate the heat of combustion (burning) of the carbon compound...
you pour too much 0.1 m NH3/H20 solution into test tube #1 & #2, leaving only...
Molecules that differ in conformation are interconverted by the expenditure of relatively small amounts of energy....
Calculate the cell potential for the following reaction that takes place in an electrochemical cell at...
If there are 0.800 gram oxygen and 3.21 grams sulfur in a sulfur oxide compound, the...
A mixture of krypton and oxygen gas is compressed from a volume of 69.0L to a...
A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density...
Calculate λ (in nm) for a photon with E = 2.68x10-15 J?
how many molecules of pyruvate are made from one molecule of glucose, one molecule of fructose,...
Determine the molar solubility of copper(I) azide (CuN3) in a solution with a pH of 2.410....
A 50.00 mL sample of H₂SO₄ is titrated with a 0.3001 M sample of Ba(OH)₂. The...
Pre-Lab Question: A student carried out a simple distillation on a compound known to boil at...
The yellow "prussiate of soda" Na4[Fe(CN)6] has been added to table salt as an anticaking agent....
In general, ionization energies increase across a period from left to right. Explain why the second...
The logarithmic stepwise formation constants for the substitution of [Cu(OH2)6]2+ with ethylenediamine (en) to form the...
The overall reaction for a generic substitution reaction in a metal complex is MLnX + Y...
What mass of sucrose (C12H22O11) should be combined with 548g of water to make a solution...
Which of the following statements is/are correct? 1. For any element, the second ionization energy is...
1) How can AgCl(s) be dissolved completely? a) Write an equation for this reation.
The cobalt(III) complexes [CoF6]3-, [Co(NH3)6]3+, and [Co(CN)6]3- have the colors orange, green, and yellow. Which complex...
If the liquid film resistance is 5 times that of the gas film for a gas...
What is the Born-Oppenheimer approximation and why is it significant? Describe how you would use the...
Water has a specific heat of 4.184 J/g-degree. How many joules are needed to heat 525g...
Suppose you add a few drops of ammonia into a bucket of waterThen you add a...
Discuss the preparation and properties of scandium dihydrides compounds.
What is the pH at equivalence point when 100 mL of a 0.175 M solution of...
a piece of dry ice (solid carbon dioxide) with a mass of 20.0 g is placed...
4. What is the molar mass of a compound if a gaseous sample has a density...
Discuss the chemistry of chromate(VI), molybdate(VI), and tungstate(VI) anions when such anions are dissolved in NaOH,...
What is the pH of a dilute solution that contains potassium acetate and acetic acid at...
Chem 576: Crossword 3 1 2 3 4 5 6 7 8 9 10 11 12...
At 298 K, the Standard Heat of Combustion of Diamond is 395.3 kJ/mol and that of...
The major product which results when 2-chloropentane is heated in sodium iodide is an ether. Show...
Quinine is a natural product extracted from the bark of the cinchona tree, which is native...
Please answer all! For each of the following precipitation reactions, calculate how many grams of the...
Gold has a face-centered cubic arrangement with a unit cell edge length of 4.08 Å ....
Calculate the enantiomeric excess of a 0.1g sample of (R)(-) ibuprofen( optical rotation = 52.240C with...
How to give a detailed description of TLC anlaysis? For example comparing the movement of alkene,...
Lab Organic- Q5: Here is the burning enthalpy of all the isomers with the molecular formula...
Please answer Explain, in detail, how you calculate a limit of detection and why it is...
15.00 of a hydrochloric acid of unknown concentration are mixed with 25.00ml of 0.100M hydrochloric acid....
Please answer: How might the heavy metals such as (zinc & lead) be held in the...
When 2.08 g2.08 g of a nonelectrolyte solute is dissolved in water to make 505 mL505...
If an exothermic reaction is not thermodynamically spontaneous, it might be made to occur by: A)...
Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B...
–What amount of calcium chloride (in moles/liter) should be added to a 0.02 M solution of...
An aqueous solution containing 5.00% by mass of a non-volatile, non-dissociating organic compound had exactly the...
How can I figure out how much heat propane produces?
These are grinard experiment questions from organic chemistry lab 1) why is it ao critical to...
Four identical 1.0L flasks contain the gases He, Cl2, CH4, and NH3, each at 0 degree...
1) calculate the mass of CuSo4 and 5H2o needed to make 100.0 ml of 0.35M CuSo4...
What is the volume of 28.0 g of nitrogen gas at STP?
An incompletely resolved mixture of (–)--methylbenzylamine and (+)-- methylbenzylamine contains 75% of the (–)-enantiomer. What is...
Please show all the work and answer all the questions! Draw a detailed reaction coordinate and...
Suppose you have 600.0 grams of room temperature water (20.0 degrees Celsius) in a thermos. You...
What is the integer stoichometry coeffient of sodium nitrate in the balanced chemical reaction between iron(II)...
A 2.50 g sample of a controlled substance (containing only carbon, hydrogen, and nitrogen) was burned...
Predict the reactants of this chemical reaction. That is, fill in the left side of the...
Draw the structure of aldohexose and all of its conformations. Then find the relative abundance of...
What are the benefits and pitfalls of using MgF3- as a transition state analog?
Naproxen belonds to a class of pharmaceuticals referred to as non-steroidal anti-inflammatorydrugs or NSAIDS. FOr Naproxen...
In the laboratory, a student dilutes 23.0 mL of a 6.34 M hydrochloric acid solution to a...
For the following reaction, the rate constants are ka=2×105s-1 and kb=3×105s-1. Determine the time (in seconds)...
In the laboratory you dissolve 12.7 g of ammonium acetate in a volumetric flask and add...
A non-electrolyte solution containing 21.6 g of an unknown solute in 0.2 L of water has...
The gas phase equilibrium reaction is exothermic : 4NH3(g)+5O2(g) <----->4NO(g)+6H2O(g) What is the effect of each...
A piece of lead with a mass of 29.3 g was heated to 97.85-degrees C and...
For each of the molecules or ions whose formulas are given below draw a single Lewis...
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