How can determine the ph of the resulting solution
Determine the pH of the resulting solution if the 25 mL of .432Mmethylamine, CH3NH2 is added to 15 mL of .234M HCL?
Ka=2.70x10-11 forCH3NH3+.
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When the ball strikes you and bounces off your chest, so that afterwards it is moving horizontally at 8.00 in the opposite direction, find out your speed after the collision?
Determine the mass of zinc reacted at the 298K, 1.00atm, if 50.0mLhydrogen gas is evolved in reaction zinc with hydrochloric acid solution.
48.12 g of a metal at 98.8 degrees Celsius are mixed in the same calorimeter with 50.0 mL of water at 22.0degrees Celsius. The final temperature of the mixture is 34.1degrees Celsius.
A slit of width 0.20 mm is illuminated having monochromatic light of wavelength 550 nm, and a diffraction pattern is made on a screen 1.2 m from the slit. Determine the widths of the second and third-order maxima?
A laboratory scale is known to have the standard deviation of 0.00094 grams in repeated weighings. Scale readings in repeated weighings are Normally distributed, with mean equal to true weight of the specimen. Three weighings of the specimen on th
When the rocket consists of an initial mass of around 6500 kg and ejects gas at a relative velocity of magnitude 1900 m/s, determine how much gas should it eject in the first second to encompass an initial acceleration of around 24.0 m/s^2?
What is the molecular weight of the unknown gas? An effusion apparatus can be used to determine molecular weights. In one experiment the effusion of CHCl3 is detected to be 10.35 min and in a separate experiment an unknown gas is detected at
Determine the power of thermal radiation emitted through a sphere with a surface area fo 2.5m^3, an emissivity of 0.7 and a temperature of 250 deg-C?
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