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1. A 0.750 kg hammer is moving horizontally at 9.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board.
(a) Calculate the duration of the impact. __________s
(b) What was the average force exerted on the nail? __________N (downward)
the partial pressure of oxygen in the atomsphere is 0.20 atm, what is the solubility of dissovled oxygen in blood? recall that the soulibilty of oxygen constant
a) Use the Rydberg formula for atomic hydrogen to calculate the wavelength for the transition from n = 4 to n = 2. b) What is the name given to the spectroscopic series to which this transition belongs?
How many grams of nitrogen monoxide are produced when copper metal reacts with nitric acid to form water and 5.92 g of copper(II) nitrate in addition to the nitrogen monoxide
Classify the chemical reactions into one of five types (like elimination ,addition etc.) by dragging the reaction into the appropriate bin.-
Question- Determine if the following solutions when mixed are acidic or basic - a) A 225 mL of a 0.5 M hydrofluoric acid solution was mixed with 150 mL of a 0.25 M calcium hydroxide solution. b) 13.4 grams of NH3 gas was bubbled into 634 mL of a 0..
Observe while adding 0.5 mL of 6M HCl to 1 mL samples of the anion solutions and then add 5 drops of 0.1M barium nitrate and observe again.
Calculate the initial volume of a gas if it is compressed to a final volume of 1.4L at a constant pressure of 2.7atm and results in 457J of work.
Methanol is toxic for humans if they ingest liquid methanol or inhale methanol vapor in significant quantities. When inhaled in concentration greater than 1000 ppm, death has been reported.
A 0.484g sample of impure NH4Br is treated with 25.00mL of 0.2050 M NaOH and heated to drive off the NH3. The unreacted NaOH in the reaction mixture after heating required 9.95mL of 0.0525 M H2C2O4 to neutralize.
beginning with 150.0 ml of 0.175 m ammonia determine the solutions ph after each of the following stepsa before any
a student is asked to prepare a buffer solution at ph 8.60 using one of the following weak acids ha kanbsp 2.7 x10-3
you have a 10.40-g mixture of table sugar c12h22o11 and table salt nacl. whenthis mixture is dissolved in 150. g of
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