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One liter of an acetate buffer is prepared by adding 60mL of 1.5M acetic acid and 50mL of 0.4M sodum acetate. Calculate the final concentrations of acetic acid and acetate
X reacts with one molar equivalent of hydrogen in the presence of a palladium catalyst to form 1,2-dimethylcyclopentane. Treatment of X with ozone follwed by zinc in aqueous acid gives a dialdehyde.
Calculate the change in entropy (in J/K) for the following reaction at 298 K: C(s) + H2O(g) ? CO(g) + H2(g)
Describe why barium must be disposed of properly. What are the health effects of excess barium in drinking water? What is the maximum allowable concentration of barium in public water systems?
Calculate the net change in enthalpy for the formation of one mole of dimethyl ether from carbon dioxide and hydrogen.
In a reaction that is first-order with respect to reactant A and second-order with respect to reactant B, what will happen to the rate of the reaction if we
An unknown compound contains only C, H, and O. Combustion of 3.60 g of this compound produced 8.18 g of CO2 and 3.35 g of H2O.
CuO has the distorted PtS structure. Describe the arrangement of the copper and oxygen atoms
oxygen gas is contained in a 30.0 l tank at a pressure of 4.07 atm. the tank is connected by tubing to a second empty
What is the pressure (in atmospheres) of a sample of gas trapped in the closed-tube mercury manometer
chemical potential energy from rotating turbines into thermal energy. B) electrostatic energy from rotating turbines into chemical energy
oes this result mean that the change in enthalpy of this process must be negative in order for the process to be spontaneous under standard state conditions? How come?
Consider the chemical bonds found in the white solid, potassium hydrogen phosphate, K2HPO4. For each bond specified, choose the best description from the list of types below.
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