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A certain rifle bullet has a mass of 5.73 g. Calculate the de Broglie wavelength of the bullet traveling at 1073 miles per hour. Physical constants can be found here.
solution of CO in water at 25 degrees celsius in which the CO concentration was 2.0 mM, what pressure of CO would you need to use?
What mass percent of ethylene glycol in water must be used to reduce the freezing point of the mixture to -5.0degrees c?
Recall from class that we estimated the pi bond in ethylene to be about 350 kJ/mol. Use the same approach to estimate the strenghth
How many grams of sodium nitrite must be added to 120.0 mL of 0.15 M nitrous acid in order to prepare a buffer solution at pH 4.3? The pKa of nitrous acid is 3.337.
How many grams of sodium benzoate should be added to prepare the buffer? Neglect the small volume change that occurs when the sodium benzoate is added
What is the pH of the solution obtained when 135 mL of 0.618 M NaOH is diluted to 16.0 L with water?
A piece of charcoal from a tree killed by the volcanic eruption that formed the crater in Crater Lake (in Oregon) gave 7.0 disintegrations of carbon-14 nuclei per minute per gram of total carbon.
What is the molar mass of sodium chloride. In an ionic reaction between sulfate and calcium, the ratio of calcium to sulfate ions is what
A stream of humid air containing 1.00 mole% H2O(v) and the balance dry air is to be humidified to a water content of 10.0 mole% H2O. For this purpose, liquid water is fed through a flow meter and evaporated into the air stream. The flow meter, R, ..
The absorbance of the reference and the sample solutions match when the pathlength is 2.10 cm. What is the concentration of iron in the well water? For each solution, the zero is set with a blank.
Calculate the pH of a dilute solution that contains a molar ratio of potassium acetate to acetic acid (pKa = 4.76) of 5:1? Enter answers with 2 decimal points.
What is the final concentration of a solution made from 7.4 mL of 0.97 M CuSO4 and 14.4 mL of water?
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