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What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?
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How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123
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8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
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Calculate the de Broglie wavelength (in picometers) of a hydrogen atom traveling at 465 m/s....
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