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Explain which of the three reagents used in your synthesis of Alum experiment was the limiting reactant (1.5 M KOH, 4.5 M H2SO4 or the Al)? Calculate the spectrographic electron configuration for
Write the balanced equation for the reaction and determine the enthalpy change that occurs when1.5 moles of hydrazine is burned. In liquid-fuel rockets the fuels are liquid hydrazine (N2H4) and dini
A student wishes to determine the density of a solution of sodium hydroxide. He finds the mass of the flask to be 25.631 g. He finds the mass of the flask filled with sodium hydroxide solution is 36
Discuss how can its formation be explained? Give a balanced equation for its formation. Benzene is often formed as aside product during the Grignard reactions by using the phenyl magnesium bromide.
Instead of mercury the manometer is filled with a liquid (X) whose density is 0.579 g/cc. The pressure of an unknown gas is measured with a manometer. The pressure is calculated as 802 mmX. Determi
An aquanauts spent several weeks living under the sea at a pressure of about 7.0atm in an experiment called Sea lab II. They had a great deal of difficulty cooking, for several reasons.
Which alcohol would you expect this to be? When the Hydration of either 2-methyl-1-butene or2-methyl-2-butene yields the same alcohol, Show all the steps in the reaction mechanism.
If the oxidation number of the metal is+2 determine the molar mass of the metal when the 1.296 g of a certain metal sulfide was roasted in air, 0.780 g of the metal oxide was produced.
The complex [( bipy) 2ClRu ( pyrazine) Ru(bipy)2Cl]5+ displays an inter valence transfer absorption band at 7.79 x103 cm-1. If Etherm can be very approximately equated to Δ
Although CaCO3 is considered insoluble, some of it does dissolve in the aqueous solutions. Calculate the molar solubility of CaCO3 in water (where Ksp =8.7 x 10-9).
The words are- Strong acids, ions, reaction, acids, strong electrolyte, hydroxide ions, strong bases, neutralization, weak electrolyte, bases, hydronium ions, weak acids, aqueous solution, dissociat
Follow the error logically through, from effect on standardization curve through the experimental absorbance through final percent composition.
When an aqueous solution which is having the 9.97 g of potassium oxalate, K2C2O4 * H2O is made to react with an aqueous solution having 2.79 g of ferric chloride, FeCl3, some greenish colored cry
Protease X is characterized by the presence of a catalytic triad comprised of the residues: serine, aspirate and histamine. Suppose you have isolated a new Protease X, protease, from a bacterial sou
Two tabs are completely dissolved in enough pure water to give 150.0ml of total solution. This solution is then titrated with a 0.350M solution of HNO3 (aq), HNO3 is the titrant.
Write the balanced equation for the reaction. A sample of hydrogen gas is generated in a closed container by reacting the 2.050g of zinc metal with 16.0 mL of 1.00 M sulfuric acid.
Assume a sample of solid hydrogen is held under an external pressure of 0.030 atm and heated from the 5 to 300K. Discuss what phase changes, if any, will occur?
The incident sunlight at ground level has a power density of 1.2 k W/m2 at noon in July in Los Angeles. A swimming pool of area 50m2 is directly exposed to the sun. Determine the max
Determine the volumes of each of the following different acid solutions: 1.50 M HCL, 1.50 M HNO3, 1.5 M H2SO4 and describe the masses of NH4Cl, NH4NO3, (NH4)2SO4
Determine the numbers of singly-occupied orbital's are there in the valence shells of the following elements in their ground states according to Hund's rule of maximum spin multiplicity? Enter your
During pH of salt solution lab, discuss why the pH reading you are observing would be affected when the solutions are in contact with the air or when saturated with the air? Include chemical equati
Estimate the total number of moles of sodium contained in the 3.6 g of sodium chloride and 5.6 g of sodium sulfate. How can enter the answers in scientific notation of the form 2.1E2?
Calculate the smallest number of ice cubes at 0oC, each containing one mole of water, initially at 20oC to 0oC necessary to cool the 500g of liquid water?
Determine the numbers of possible constitutional isomers can be produced from monochlorination of (S)-3-methylhexane using the Cl2/light?
Suppose you have forgotten to add the boiling tones to your round bottomed distillation flask but the distillation is now in the progress. What should you do?