Kinetics and rate laws
Would the calculated value of k, the true rate constant, be in error if the concentration of dye was actually doubled the value you were told? Explain your answer.
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What mass in grams of hydrogen is produced by the reaction of 4.73 g of magnesium with 1.83 g of water?
An element crystallizes in a body-centered cubic lattice. The edge of the unit cell is 2.52 \AA, and the density of the crystal is 6.11 {\rm g/cm^3}
A chunk of gold with an unknown mass is heated to 163 degrees C and dropped into 38.0 grams of water at 25.0 degrees C. If the final temp of the water is 36.5 degrees C, what is the mass of the gold in grams?
A cylinder containing 23.5 moles of nitrogen gas has a volume of 9.81L. What is the pressure of the gas at 23°C?
Calculate the volume (in mL) of a 1.22 M Na2S solution needed to react with 2.75 g of AlBr3 (molar mass = 266.7 g/mol) in the following reaction:
Question: An unknown mass of each of the following substances, initially at 24.0 C, absorbs 1920 J of heat. The final temperature is recorded as indicated. Find the mass of each substance.
A scanning electron microscope operating at an accelerating voltage of 10 kV accelerates electrons to 20% of the speed of light, calculate the wavelength of the electron.
At 298 K a cell reaction has a standard emf of +0.17 V. The equilibrium constant for the cell reaction is 5.5 105. What is the value of n for the cell reaction?
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