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of the metal ions we tested in the flame, sodium gave the brightest and most persistent color. Do you think that if a mixture of potassium and sodium were burned in a flame, the gross color of potassium could be detected in the presence of sodium? What could you do to be certain that both of these metals detected?
An ice cube that is 25.00 g (temp -20 C) is placed into 225.00 g of H2O that is 22 degrees C. What will the temperature be when the ice cube has just melted. Use 4.184 J/K*g for the specific heat capacity of ice and water.
A student found that a brand B tablet would neutralize 0.011 moles of HCl per tablet. Which is the better buy, brand A or brand B? Why?
What is the rate law for this reaction. What is the value of the rate constant. How many seconds would it take for the total pressure to be 0.7133 atm
Calculate the diffusion limiting current for the oxidation of an organic compound at an electrode in stagnant solution. Assume 6 electrons are involved in the reaction (n=6). C(org) = 0.01 M, D(org) = 2x10^-5 cm^2/s.
salicylic acid reacts with methanol to produce oil of wintergreen and water. If water is added to the solution, a precipitate is formed. identify the precipitate and explain why it is formed.
Deduce the structure of each compound from the given information. All unknowns in this problem have the molecular formula C8H12.
Calculate the molar solubility of silver thiocyanate, AgSCN, in pure water and in water containing 0.010 M NaSCN.
How many liters of HCl at 100.0 oC and 740 mm Hg are produced from 150.0 g of C10H16?
25.00 mL of 0.0200 M MnCl2 is titrated with 0.0250 M Na2H2Y. Both solutions are buffered to pH 8.20. Determine pMn after the addition of the following volumes (mL) of the Na2H2Y.
write an individual balanced equation for the dissolving of each salt in solution, including phase labels B) what was the concentration in molarity if each ion in solution, Mg 2+, Na+, Cl-?
Write molecular, complete ionic, and net ionic equations for the reactions that occur , if any, when solutions of the following substances are mixed
A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill, you are told that X-281 is a monoprotic weak acid,
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