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Predict whether a reaction will occur when aqueous solutions of silver nitrate and potassium bromide are mixed. Of silver ion, nitrate ion, potassium ion, and bromide ion, which are spectator ions?
a cetrain pitchers fastballs have been clocked at 104 mph. calculate the wavelength of a .141-kg baseballin nm
Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.50 M B(aq) with 0.50 M HCl(aq).
In the manufacturing of computer chips cylinders of silicon are cut into thin wafers that are 3.00 inches in diameter and have a mass of 1.50g of silicon. How thick, in millimeters (mm) is each wafer if silicon has a density of 2.33 g/cm3. The vol..
The substance X is an element which has the elemental form of X(s) at 25oC. The standard enthalpy of formation of HXO4(g) is -818.0 kJ/mol at 25oC. The standard entropy of HXO4 (g) and X(s) are, respectively 175.8 J/mol•K and 30.70 J/(mol•K) at 25..
What is the energy, in J/photon, of electromagnetic radiation that has a frequency of 2.89 x 1015Hz ? Express your answer to 3 significant figures in scientific notation and do not include units.(4.45 x 10-3 can be represented in scientific notati..
The Haber process involves a synthesis reaction. The two reactants are H2 (g) and N2 (g), and the products are ammonia NH3 (g) and heat. The reaction takes place in a reaction vessel in which one of the factors that influences the reaction is a high ..
A buffer is made by dissolving HC2H3O2 and NaC2H3O2 in water. a.) Write an equation that shows how this buffer neutralizes added acid.
The vapor pressure for water at 20 degrees C is 17.5 mmHg. What is the vapor pressure of water over a solution prepared from 2.00 x 10^2 g of sucrose (C12H22O11) and 3.50 x 10^2 g of water
The thermite reaction is given by- Fe2O3(s) +Al(s) ------> Fe(l) + Al2O3(s). Explain how many grams of molten iron will be produced if 2.29 moles of iron (III) oxide is consumed
In ESI, it is very important to regulate the pH of the solution. Therefore, the solution is usually buffered or has added acid. How does the solution pH influence the ionization efficiency and the distribution of charged species formed?
The carbon-14 in a living organism is constant until the organism dies after which carbon-14 decays with first-order kinetics as well as a half-life of 5730 years. Presume a bone from an ancient human contains 17.0% of the C-14 found in living org..
hydrogen iodide hi is formed in an equilibrium reaction when gaseous hydrogen and iodine gas are heated together. if
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