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nitrogen gas reacts with oxygen gas to form nitrogen monoxide gas. How many total electrons are transferred from each molecule of nitrogen or oxygen
A solution contains 3.2x10-1M Co2+ and 2.5x10-3M Fe3+. NaOH is added to the solution, which cation will precipitate first?
The reaction takes place in a bomb calorimeter where 4.50g of glucose are burned. What is the heat capacity of the bomb if the temp. of the water in the bomb increases from 22.75 degrees Celsius to
Find the pH of the resulting solution when 20.00mL of a 0.1000M triethylamine (CH3CH2)3N (Kb = 5.2x10-4) solution is titrated with 20.05mL of a 0.1000M HCl solution.
For the following reaction, if 11.2 L of Nitrogen are reacted to form NH3 at STP, How many liters of Hydrogen will be required to completely consume all of the nitrogen.
Determine the dominant configuration of energy for this system by identifying energy configurations and calculating the corresponding weights. What is the probability of observing the dominant conf
The total precipitate was dissolved in HCl + HNO3. When the solution thus formed was treated with excess NaOH followed by H2O2, a colorless solution and a reddish brown precipitate were formed. The
Determine the molar solubility for Copper (II) hydroxide in (a) a water solution at 25 degrees Celsius, and (b) in a solution having a pH of 8.75 at 25 degrees Celsius.
The following show the connectivity of atom only atom other than carbon and hydrogen are labeled how many degree of unsaturation are pressent in the compound? chose the correct answer from the follo
At this temperature, calculate the number of moles of NO2(g) that must be added to 2.88 mol of SO2(g) in order to form 1.20 mol of SO3(g) at equilibrium.
a reaction that establishes equillibrum with almost no reactants pressent will be one of the following. a) exergonic reaction b) has a negative G degree c) has a large keq d) all of the above
You are told to prepare a Ammonium buffer solution (0.15M, pH 8.5; 1.0L). You have HCl (0.15M); Ammonia (NH3) and Ammonium chloride (NH4Cl); solid 100g) (Kb for NH3 = 1.8 x 10-5). Please show how yo
What are the entropy change and Gibbs energy change on mixing to produce a benzene-toluene solution with 1/3 mole fraction benzene at 25C
Ice has the unusual property of a melting point that is lowered by increasing pressure. if this is the reason we can skate on ice, would a 75-kg skater whose skates contact the ice with an area of 0
how many number of element of unsaturation are implied by the molecular formular C5H5NO2
A lab bench has three one liter stoppered flasks. Flask A contains one gram of NH3 gas, flask B contains one gram of N2 gas, and flask C contains one gram of SO2 gas. All are at the same temperature
Write a stepwise mechanism using arrows to show movement of electrons for the reaction of 1-butyne with hydrogen bromide to produce 2,2-dibromobutane. CH3CH2CCH + 2HBr --------->CH3CH2CBr2CH3
What are the structures of the products that would be expected to be obtained on hydration of 1-octyne and 2-octyne?
a reaction has H degree = -14.7 kg and S degree of 35.7 J/k x mol . the reation will be one of the following, Exergonic or have a very small keq or have a positive G degree
a 1.000 g sample of a certain mixture is 75% (by mass) potassium sulfate and 25% of an unknown sulfate with formula MSO4. the unknown is dissolved and precipitated with barium ions. If 1.489g of pre
in a reaction mechanism the atom that gives away electron in a nutral nucleophile will end up as an, Cation or Radical or Anion?
When sodium chloride is added to the solution, no precipitate forms. when sodium sulfate is added, a precipitate forms. this precipitate is filtered of and sodium carbonate is added to the solution
In a reaction, 34.6 g of chromium(III) oxide reacts with 12.3 g of aluminum to produce chromium and aluminum oxide. If 23.7 g of chromium is produced, what mass of aluminum oxide is produced
suppose that a student performing an experiment mistakenly calibrated the pH meter using pH 6 instead of a pH 7 buffer. As a result all pH meter readings were too low.