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A wedge-shaped tank is filled with water at a rate of 5.00 kg/s. The tank is 4.00 m long and 4.0 m tall, and the angle of the wedge is 90°. The wedge is oriented as pictured, with the point down such that cross sectional area changes with height. What will the height of the water be after 1 hour
calulate the molarity of acetic acid in a venegar sample knowing that 5.00mL of vinegar requires 43.50mL of 0.105 M NaOH to reach the phenolphthalein endpoint in a titration
A 11.0-L helium tank is pressurized to 26.0 atm. When connected to this tank, a balloon will inflate because the pressure inside the tank is greater than the atmospheric pressure pushing on the outside of the balloon.
The student weighed out .110 grams of sample for all 3 trials. The student averaged 6.40mL of Na2S2O3 for all 3 titrations.
Several oxidation reductions take place. List three examples of oxidation reduction reactions that are involved. Show what is oxidized what is reduced, and indicate which enzyme (E1, E2, E3) is involved.
Assume a 95% yield for the formation of the phosphonium ion, how many milligrams of benzyl chloride and triphenyl phosphine would you need to prepare 220 mg of benzyltriphenylphosphonium chloride?
At high temperature, ammonia reduces copper(II) oxide to the free metal: Step 1: 2NH3(g) + 6CuO(s) => N2(g) + 3Cu2O(s) + 3H2O(g)
For the reaction 3 C2H2(g) C6H6(l) at 25C, the standard enthalpy change is -631 kJ and the standard entropy change is -430 J/K. Calculate the standard free energy change at 25C.
A crystalline unit cell contains oxygen atoms on all edges of the cell and rhenium atoms on each corner. What is the formula for rhenium oxide
Using the inverse square law of radiation, what Geiger counter reading would you get for a radioactive material when you are 3 feet from the source (assume an initial reading of 6300 R at a distance of 1 foot from the source)?
The barium salt was found to have two mole of water of hydration per Ba ion and the acid is mono basic. What is molecular weight of anhydrous acid.
How many grams of glucose are in 100. rm mL of the final solution?
What phase changes occur when the pressure is held constant at 0.25 atm and the temperature increases from 100 °C to 300 °C?
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