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A gas has a volume of 5.0 L at SATP conditions. What will be the volume of the gas if the temperature is cooled to -5.0 °C, and the pressure is held constant?
The half-life of a certain first-order reaction is 15 minutes. What fraction of the original reactant concentration will remain after 2.0 hours
You are on the Starship Enterprise visitin an uninhabited planet. While investigating the surface of the planet, you come across a "nugget" of some type.
what is the pH of the buffer solution and what is the ratio of acid to conjugate base in order to decrease the pH by 1.00 unit from the value calculated of the buffer solution.
Question- Determine the pH of a solution that contains 0.15 M HNO2 and 0.20 M NaNO2. For HNO2, Ka=5.1*10-4. Provide complete answer.
Needed to synthesize the ester, butyl butanoate, which is responsible for the scent of the pineapple in the lab. Depict the skeletal structure of the indicated species below you would use to make yours cent.
When aqueous solutions of potassium acetate and hydrochloric acid are mixed, an aqueous solution of potassium chloride and acetic acid results. Write the net ionic equation for the reaction.
The equilibrium constants needed to work this problem are given in Table 2-3 (under Phosphoric Acid). Hint: use the mass balance equation for phosphate species and equilibria expressions to solve this problem
A soft drink is made by dissolving CO2 gas at 4.00 atm in a flavored solution and sealing the solution in aluminum cans at 20.°C. What amount (in moles) of CO2 is contained in a 360-mL can of the soft drink?
calculate the molarity of acid (or base) remaining in solution when 20mL of 0.400M HNO3 is added to 16.3mL of 0.258M NaOH?
Calcium concentrations in solutions may be determined by a complex-forming reaction with EDTA. The reaction takes place between Ca2+ and EDTA4- with a formation constant of 4.5 x1010.
The crystalline form of rhodium (Rh) is composed of face-centered cubic unit cells. If the density of rhodium is 12.42 g/cm3 at room temperature
2.10 L of a buffer solution that is 0.360 M in NH3 and 0.430 M in NH4Cl are diluted to 4.30 L with distilled water. What is the pH of the buffer? Kb of NH3 = 1.8 10-5.
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