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the first ionization energy for sodium is 496kJ/mol. What is the minimium wavelength of light necessary to ionize an atom of sodium? what is the minimum wavelength of light necessary to ionize a mole of sodium atoms?
A 0.1mL Pure Acid phosphatase (0.5mg/ml) hydrolyzes 0.2mmol of pnPP wall in 5 min. what is the specific activity?
When 0.0200 mol gaseous NH3 and 0.0180 mol gaseous O2 are placed in a 1.00 L container at a certain temperature, the N2 concentration at equilibrium is 2.20Ã-10-3 M. Calculate Keq for the reaction at this temperature.
What is the minimum volume of 7.0M HCl required to completely dissolve 14.0 grams of magnesium metal?
Consider a glass of 298 mL of water at 30°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved.
Calculate the mass of silver nitrate (in grams) in a 145 mL solution of 5.38 M AgNO3.
All useless answers. Shouldn't lose points if answers are not helpful. A 0.4863-g sample of primary standard sodium carbonate (Na2CO3, fw 105.988) was treated with 40.00-mL of a dilute perchloric acid (HClO4, fw 100.458) solution.
what is the limiting reactant when 3.41g of lithium with 2.79g of copper II nitride?predict the products, write a balanced equation, calculate the limiting reactant.
when 0.500 l of a 1.00 m solution of Pb( NO3) 2 is mixed with 0.500 l of a 1.00 m solution of Kl how many grams of lead(II) iodide are formed
determine the expression for the rate of the reation in terms of the change in concetration of each of the reatants and products.
How long will it take to deposit 89 g of magnesium from an electrolysis cell containing MgO at a current of 12.5. A magnesium formation is the only cathode reaction mg = 24glmol.
How many moecules of N2 are needed to react with 30 molecules of H2?
Using heat of fusion, specific heat of water, and/or heat of vaporization, calculate the amount of heat energy in each of the following. calories to condense 135 g of steam at 100^{circ}{rm C} and to cool the liquid to 15^{circ}{rm C} (two steps)
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