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If 38.6 grams of hydrogen sulfide gas (H2S; MM = 34.08 g/mol) react with 36.3 grams of oxygen gas (O2, MM = 32.00 g/mol), what is the mass of sulfur dioxide (SO2, MM = 64.06 g/mol) gas produced
A 23.0 g block of copper whose temperature is 447 K is placed in an insulating box with a 92.4 g block of lead whose temperature is 132 K. find the equilibrium temperature of the two-block system
Give the systematic names for the formulas, or the formulas for the names. (Type your answer using the format copper(II) chloride for CuCl2, and using the format CO2 for CO2. Omit the centered dot f
Plane monochromatic waves with wavelength 520 nm are incident normally on a plane transmission grating having 350 slits/mm
If you have 4.63 g of caffeine dissolved in 69.9 mL of water and the extraction coefficient between H2O and CH2Cl2 is 21.51. How many grams of caffeine will extract into the CH22Cl2 layer if you use
The temperature of 3.25 mol of an ideal diatomic gas is increased by 23.5 ?C without the pressure of the gas changing. By how much does the rotational kinetic energy of the gas increase
Suppose scheme one involves the reaction of the Grignard reagent containing more carbon atoms with the carbonyl compound containing less carbon atoms and scheme two involves the reaction of the Grig
One chemistry 370 student was attempting to synthesize ethyl t-butyl ether by a William ether synthesis with sodium ethoxide and t-butyl bromide. To his surprise, the major product he obtained is NO
An astronomer on earth observes two galaxies moving away from each other along a line that passes through the earth. At what speed are the galaxies moving apart relative to each other?
1,3-Butadiene can react with NBS (conditions generating Br2), producing 1,2 and 1,4- addition products. At different reaction temperature, the ratio of the two products is different. (a) Write the r
The ternary compounds called chlorofluorocarbons, or Freons, have proved to be very valuable as refrigerants and as cleaning agents for circuit boards. Unfortunately, in the atmosphere these compoun
Write a balanced reaction for the complete combustion of ethanol (C2H5OH) in oxygen, using the smallest integer coefficients. Then add up the total of all of the coefficients from both sides of your
Balance the following equation, using the smallest possible integer coefficients. Then enter the 4 coefficients in the 4 answer boxes. (Suppose the coefficients were 6, 5, 4 and 3 for the 4 substanc
A ray of light is incident on a flat surface of a block of cubic zirconia that is surrounded by water. obtain the angle of reflection
A current loop, carrying a current of 3.0 A, is in the shape of a right triangle with sides 30, 40, and 50 cm. Find the magnetic dipole moment of the loop
Suppose a fluorine- nuclide transforms into an oxygen- nuclide by absorbing an electron and emitting a gamma ray
The capacitor in an LC circuit has a maximum charge at t= 1 ms. What is the circuit's period of oscillation
If a pickle recipe requires 2.0 cups of vinegar to make 6 pints of pickles, how much vinegar do you need to make 25.00 gallons of these pickles
What is the density of gold if a ring with a volume of 2.656 cubic centimeters has a mass of 51.26 grams?
If you are given a thermometer with 10 divisions between 10.1 and 10.2 degrees Celsius, and room temperature is exactly 22 degrees Celsius how should you report that value
how many kilograms does it take to sink a model barge with the following measurements in a calm pool; 300.00 cm * 25.00 cm * 68.00 cm with a mass of 850.0 grams
A 116 g insulated aluminum cup at 15°C is filled with 140 g of water at 50°C. After a few minutes, equilibrium is reached. Estimate the total change in entropy
boron-fluorine single bonds are approximately 1.52A(152pm) in length. in BF3, the bond lengths are 1.30A. propose an explanation for this discrepancy, making use of resonance structures to illustrat
State Newton's three laws of Motion and What is the difference between elastic collision and inelastic collision
a) what is the ratio of conjugate base to conjugate acid after 100 ml of 1M HA is adjusted to a pH of 8? b) under the conditions in part a, how many moles of HA are present? How many moles of A- are