What is the frequency and wavelength of light
When sodium is heated, a yellow spectral line whose energy is 3.37x10^19 J/photon is produced. What is the frequency and wavelength of this light?
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The radius of a aluminum atom is 143 pm. How many aluminum atoms would have to be laid side by side to span a distance of 4.82 mm?
An auto mechanic spills 90. mL of 2.6 M H2SO4 solution from a rebuilt auto battery. How many milliliters of 2.5 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid.
A 75.0 L steel tank at 20.0C contains acetylene gas (C2H2) at a pressure of 1.39 atm. Assuming ideal gas behavior, how many grams of acetylene are in the tank?
Calculate the molarity of an NH3 solution made up of 37.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL
Which of these ionic solids would have the largest lattice energy?
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How many grams of magnesium chloride, MgCl2, would be required to prepare a 0.2019 m MgCl2 solution by combining this compound with 0.2050 L of water (assume a density of 1.00 g/mL)?
How many charges will it need to travel from Boston, Massachusetts to Miami, Florida, a distance of 1486 mi, assuming that the trip begins with a full charge?
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