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Password bounces straight up from a diving board and Falls feet first into a pool. She starts with a velocity of 3.00 meters per second, and her take off point is 1.70 m above the pool. How long are her feet in the air? What is her highest point above the board? What is her velocity when her feet hit the water?
Calculate the volume of the NaOH needed to completely neutralize the acid in the flask. Calculate the pH for a) initial acid solution in the flask; b) the point at which 8mL of the base has been added; c) the equivalence point and d) the point in ..
A liquid unknown was found to be insoluble in water and soluble in cyclohexne and alcohol, the unknown was found to have a boiling point of 145oC at 658 mmHg . Explain what is the substance? Explain what could you do to confirm your answer?
What product(s) are expected in the ethoxide-promoted β-elimination reaction of 2-bromo-2,3-dimethylbutane? Omit ions, salts
A 520.0 mL of a buffer solution that is 0.175 M in HC2H3O2 and 0.165 M in NaC2H3O2, Calculate the inital pH and the final pH after adding 0.020 mol of HCl
Which of the following factors affect the resolution (separation) of two compounds: (A) nature of the stationary phase; (B) eluent composition; (C) amount of sorbent used; (D) color of compounds being separated?
A gas with a molar mass of 4 and a specific heat ratio of 1.67 is expanded from a large reservoir in which the pressure and temperature are 600 kPa and 35°C.
The specific heat of zinc is 0.096 cal/(g °C). Determine the energy required to raise the temperature of 29.2 g of zinc from room temperature (20.0 °C) to 150 °C.
A 2kg sample of lead is heated from a temperature of 30 degrees celsius to a temperature of 60 degrees celcius. The specific heat of lead is 128 J/kg degrees celsius. How much heat energy di this sample absorb?
The following elementary liquid phase reactions are to be carried out
exactly 56 grams of sodium sulfate 51 grams of potassium iodide and 48 grams of barium perchlorate were dissolved in
a gas mixture with a total pressure of 770 mmHg contains each of the following gases at the indicated partial pressures: CO2, 122 mmHg; Ar, 209 mmHg; and O2, 191 mmHg. The mixture also contains helium gas. what is the partial pressure of the heliu..
Calculate the percent yield for an experiment in which 5.50 g of SOCl2 was obtained in a reaction of 5.80 g of SO2 with excess PCl5
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