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An airplane flies eastward and always accelerates at a constant rate. At one position along its path it has a velocity of 31.1 m/s, it then flies a further distance of 47700 m and afterwards its velocity is 48.7 m/s. Find the airplane's acceleration and calculate how much time elapses while the airplane covers those 47700 m.
Calculate the following when 0.250 L of 0.250 M AgNO3 solution is mixed with 0.350 L of 0.300 M Na2CO3 solution. Ksp for Ag2CO3 is 8.46E-12. What mass of ppt forms and what concentration of Ag+ is left
What might you do to remove the acid? (Hint: how could you make it more soluable in water)
Consider a liquid with a vapor pressure of 320. torr at 20.0 degrees C and a vapor pressure of 540. torr at 50.0 degress C. What is the normal boiling point of this liquid?
if a 5.0ml aliquot (portion) of the above solution was taken and diluted to 500.0mL. What is the concentration of this new solution
Calculate the pH of the solution after the addition of 30ml of 0.1M NaOH. Show you work. Draw the structure of the form is His predominating in solution at neutral pH.
Calculate the equilibrium concentrations of NH3 and H2S if a sample of solid NH4HS is placed in a closed vessel and decomposes until equilibrium is reached
1. We call a statement in any language a computed case type of statement if it branches to one of several areas in the program, depending on the value of a variable. Discus the positive and negative aspects of a computed case statement. In particular..
72 ml of a 1.70 m solution is diluted to a volume of 288 ml.a 144 ml portion of that solution is diluted using 149 ml
What is the kinetic energy of electrons whose de Broglie wavelength matches the size of a benzene ring? (280 pm)
A sample of nitrogen gas at 37.2 °C and 102.5 kPa occupies a volume of 4.5 L. How many moles of nitrogen is in the sample?
Would a buffer containing HF and F- in appreciable quantity be expected to have a pH of around 3,5,7 or 9? Justify your answer.
In normal breath, about 0.5 L of air at 1.0 atm and 293 K is inhaled. About 25% of the oxygen in air is absorbed by the lungs and passes into the bloodstream. for a respiration rate of 18 breaths per minute, how many moles of oxygen per minute are..
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