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A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

What’s the scientific notation for the number 6,840,000,000

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?