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For a helium atom in a 1D box, calculate the value of the quantum number of the energy level for which energy is equal to 3/2 kT at 25C (A) for a box 1 nm long (B) for a box 10-6 m long.
the stretomycin has an osmotic pressure of 8.72mmHg at 23.6 degrees C, what is the molecular weight of the antibiotic?
Calculate the maximum number of grams of H2S that can form when 158g of aluminum sulfide reacts with 131g of water.The *unbalanced* reaction is given below.
What is the molarity of a solution made by dissolving 74.8 g of strontium perchlorate in sufficient water
The compound 2-methyl-1,4-pentadiene would be classified as what type of diene? Select the least stable diene listed below
On titration of a sample weighing 0.573g , 94.1mL of 0.105 MNaOH was required to reach an equivalence point. Fumaric acid reacts with 1 mol ofHCl to give an addition product and with 1 mol of H2 to give a reduction product. ???what is the empirica..
For the reaction Cl2 + 2KBr -> 2KCl + Br2, calculate the percentage yield if 200 g of chlorine react with excess potassium bromide to produce 410 g of bromine
At standard temperature, a gas has a volume of 371 mL. The temperature is then increased to 131C, and the pressure is held constant. What is the new volume?
what is the net ionic equation for lead ii nitrate magnesium
Why is the intercept of a calibration curve of absorbance vs concentration not zero?
When the liberated hydrogen gas is collected over water at 29 degrees celsius and 752 torr, the volume is found to be 343 mL. The vapor pressure of water at 29 degrees celsius is 30.0 torr. What is the mass percentage of aluminum in this alloy?
Calculate the freezing point depression of a solution containing 0.20% wt/v glucose (mol wt of 180) and 0.5% NaCl
calculate the speed of the reaction when the concentration of N2O5 is of 0.0100 M b) How long, in minutes, to wait before the N2O2 concentration is reduced from 0.500M to 0.200M
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