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Calculate the mass of nitrogen dissolved at room temperature in an 76.0L home aquarium. Assume a total pressure of 1.0atm and a mole fraction for nitrogen of 0.78.
Write the ground-state electron configurations for the following elements. (Type your answer in noble gas notation using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2.)
A swimmer runs horizontally off a diving board with a speed of 3.44m/s and hits the water a horizontal distance of 1.74m from the end of the board. How high above the water was the diving board
A lawn mower is pushed at constant speed by a horizontl force of 10.0 lbs. determine the work done by the person
Determine the maximum number of electrons that can be found in each of the following subshells.
a photon has a wavelength of 741nm calculate the energy of the photon in joules
In a RLC series circuit, the resistor is 250 ohms, inductor is 0.6 H, capacitor is 3.5 micro Farads. What is the maximum voltage drop across the capacitor
Three deer, A, B, and C, are grazing in a field. Deer B is located 63.9 m from deer A at an angle of 51.4 ° north of west. What is the distance between deer A and C
Stearic acid, nature's most common fatty acid, dimerizes when dissolved in hexane. The equilibrium constant for this reaction at 28 degrees Celsius is 2,900. Estimate the equilibrium constant at 38
The molecule below is a disaccharide made from monomers of simple sugars. Both molecules were synthesized suing a common chemical reaction. What is the chemical reaction that formed these molecules
What is the de Broglie wavelength in cm, of a 12.9 g hummingbird flying at 1.14 102 mph? (1 mile = 1.61 km.)
Urea, NH2CONH2, is a nonvolatile nonelectrolyte. Calculate the boiling point of a solution of 30.0g of urea in 250g of water
how many milliliters of .100 M NaOH are required to neutralize 50.00 mL of .215 moles of H2SO4
For the reaction, 2 A(g) + 2 B(g) => C(g) + 3 D(g), the following data were obtained at constant temperature.Experiment Initial [A], mol/L Initial [B], mol/L Initial Rate, M/min
How long will it take until the sun has used up all the hydrogen atoms in the core (the central 10%)? That is, what is the main-sequence lifetime of the sun and compare the lifetime of the sun to th
Describe all the symmetry planes in the staggered conformation of ethane. Draw a figure and arrows to show any rotational symmetry axes in the staggered conformation of ethane.
cis-dibenzoylethylene is converted to a more stable, new product, ethyl 4-phenyl-4-phenoxy-3-butenoate. What is the structure of the new product
James Stewart, 2002 Motocross/Supercross Rookie of the Year, is leading a race when he runs out of gas near the finish line. Determine the distance the racer travels before coming to a stop
It is possible to draw a valid Lewis structure that follows the octet rule for all of the following except one. Which one cannot be drawn without violating the octet rule
Research at least six (6) information sources on forecasting methods; take notes and record and interpret significant facts, meaningful graphics, accurate sounds and evaluated alternative points of
A rocket is launched from the origin with an acceleration of 20.0 m/s2 at an angle of 30.0 degrees above the horizontal. What is the total time of flight
Describe all the symmetry planes in methylene chloride. Draw a figure and arrows to show any symmetry exes in methylene chloride. Also state how many fold.
After the box starts sliding, the person continues to push it, exerting the same force. What is the acceleration of the box
Discuss problem solving from a historical perspective, how has it changed over the years and discuss problem solving as it pertains to another discipline(science, art, history, etc).
A man throws a baseball straight up in the air at 19.6 m/s. How many seconds does it take to reach the top