Calculate the pka for the acid
Enough of a monoprotic acid is dissolved in water to produce a 0.0142 M solution. The pH of the resulting solution is 2.51. Calculate the pKa for the acid
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What is the density of a sample of ammonia gas, NH3, if the pressure is .928 atm and the temperature is 63.0 C
An object is placed on a horizontal surface which oscillates vertically with simple harmonic motion. When the frequency is increased to 7HZ, the object is on the point of losing contact with the surface. At what point does this occur and what is t
In a gas phase equilibrium mixture of H2, Cl2, and HCl at 300 K, [HCl] = 0.0036 mol/L and [Cl2] = 0.00485 mol/L. Calculate the concentration of H2. Kc = 4 × 1031 at this temperature.
The standard heat of combustion of butane gas, C4H10, at 25 ° C is - 2.880 x 103 kJ mol-1 when the products are CO2 (g) and H2O (l). Calculate the value of ΔH ° if the combustion products are CO2 (g) and H2O (g). given: CO2 (g) = &De
Would you use Microsoft® Office products in your organization? What are some of the advantages and disadvantages to utilizing these products?
A Federation starship (2.0 x 106 kg) uses its tractor beam to pull a shuttlecraft (2.0 x 104 kg) aboard from a distance of 10 km away. The tractor beam exerts a constant force of 4.0 x 104 N on the shuttlecraft. Both spacecraft are initially at re
An experiment was begun with 75.00g of Ba(NO3)2 and an excess of Na2SO4. After collecting and drying the product, 63.45g BaSO4 was obtained. Calculate the theoretical yield and percent yield of BaSO4.
A student places 59.5 grams of a diatomic gas into a 10.0 L container at 298 K and measures the pressure to be 2.053 atm. Determine the identity of the diatomic gas.
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