Determining the final temperature of the mixture
A chunk of metal of 6 g, initially at 15 °C having a heat capacity of 3 cal/g °C is positioned in 27 g of water at 90 °C. Determine the final temperature of the mixture?
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The ionization energy of Li is 520 kJ/mol. Calculate the minimum wave length of light needed to ionize one atom in the gaseous state and the ionization energy in Joules per atom in the gaseous state.
Assume that that there is a seismic P wave traveling at 5.1 x 10^3 m/s having a wavelength of 1.9 X 10^3 m. i) Determine the wave’s frequency.
Everyday sally saved the penny, dime, and quarter. Determine least number of days needed for her to save the amount equivalent to integral number of dollars?
What is the pH of the solution after 50.0 of base has been added? 100ml of .200 M HCl is titrated with .250 M NaOH. What is the pH of the solution at the equivalence point?
Four particles, one at each of the four corners of the square having 2.5 m long edges, are joined by mass-less rods. The masses of particles are m1 = m3 = 4.0 kg and m2 = m4 = 8.0 kg. Determine the moment of inertia of the system around the z-axis
Assume you randomly choose a game that Miguel played in from the 2011 season. Determine the probability that he got at least two hits in that game?
When the tape pulled from the dispenser consists of 0.14 micro coulombs of charge per centimeter, determine what length of tape should be pulled to transfer 1.8 *10^13 electrons to the remaining tape?
Discuss how pure samples of each component could be obtained by the preparative gas chromatography from a mixture of two components even if the complete resolution of the peaks is not obtained.
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Its key advantage is high internal validity; its disadvantage is that randomization is often ethically or practically impossible.
Reflect: Briefly describe a personal belief or opinion you hold (e.g., a stance on a political issue, a preference for a certain type of media).