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A resisitor of 2 kilo-Ohms is connected in series to a capacitor which are connected to a 5 volt battery. The time constant of the circuit is 24 milli seconds. What is the value of the capacitor in micro-farads?
The percent ionization of octylamine in a .10 M aqueous solution is 6.7%. What is the pH of the solution and the Kb of octylamine?
What mass of C2H5OH should be added to 630 kg of the paraffin in formulating the mixture if the vapor pressure of ethanol at 35 degrees celcius over the mixture is to be 8 torr. The vapor pressure of pure ethanol at 35 degrees celcius is 100 torr.
Provide a structure for the following compound: molecular mass 101; IR: 3397, 3200, 1655, 1622 cm-1; 13C NMR: ? 27.5, ? 38.0 (weak)
Write the expressions for the rate law, inserting the proper exponents (x and y) for the concentrations of H2O2 and I-. Are the exponents x and y integers or fractions
Calculate the expectation values of for a particle in the state n=3 in a one-dimensional box.
Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
An aqueous solution containing 5.77 g of an optically pure compound was diluted to 500.0 mL with water and placed in a polarimeter tube 20.0 cm long. The measured rotation was -3.95° at 25 °C. Calculate the specific rotation of the compound.
A 50.00-mL sample of white dinner wine required 24.76 mL of 0.03867 M NaOH to achieve a phenolphthalein end point. Express the acidity of the wine in terms of grams of tartaric acid
Helium gas is contained in a pressure vessel of volume V=10m3. Determine the mass (in kg) of helium in the tank if the temperature is 20°C and the pressure is 4 bar. Use the ideal gas law. For Helium, M=4.003 kg/kmol.
What mass of silver chloride can be produced from 1.19 of a 0.298 solution of silver nitrate
What is true about ideal gas particles? a. Particles interact via the Lennard-Jones potential b. Particle volume is approximated as a sphere with diameter b
Write the reaction equation for acid-base equilibrium between hypochlorous acid and hypochlorite ion.
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