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Osmium has a density of 22.6 g/cm3. What volume would be occupied by a 21.8 g sample of osmium?
Determine the pressure of a gas using the ideal gas law - Calculate the pressure inside the vessel after all the dry ice has been converted to CO2 gas.
What is the probability of populating the first excited vibrational state (n = 1) at 298 K? Does isotopic substitution affect the probability? Would the intensity of absorption peaks be affected by isotopic substitution?
Determining Copper in Brass, 1st I titrated Na2S2O3 and determined the molarity to be 0.164. I am having trouble with the calculations for the dissolution of brass.
A fixed quantity of gas at 21 0C exhibits a pressure of 98 torr and occupies a volume of 5.22 L. Use Charles's law to calculate the volume the gas will occupy
It is found for the reaction A + B > C that doubling the concentration of either A or B while keeping the other one constant quadruples the reaction rate. Write a rate law for the reaction
500cm3 of 0.250M of Na2SO4 is added to an aqueous solution of 15.0g of BaCl2 resulting in a white precipitate of insoluble BaSO4.
Reaction of an Alcohol to Produce an Alkyl Halide, N-butanol reacts with NaBr and H2SO4 to produce n-butyl bromide, via refluxation reaction in a lab experiment.
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 72% of the Mg2 be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9 multiplied by 10-12.]
If 76.0 mL of .150 M HCL is needed to neutralize all the NH3 from a 2.25-g sample of organic material, calculate the mass percentage of nitrogen in the sample.
An unknown salt is either NaF, NaCl or NaOCl.When 0.050 mol of the salt is dissolved in water for form 0.500 L of solution, the pH of the solution is 8.08.
A 1.0-L buffer solution is 0.105M in HNO 2 and 0.145M in NaNO 2. Determine the concentrations of HNO 2 and NaNO 2 after addition of 1.4g NaOH.
You have 170. mL chlorine trifluoride gas at 669 mmHg and 45°C. What is the mass (in g) of the sample?
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