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Formic acid is a weak acid with a ka value of 1.8x10-4 at 25 Celsius a solution with a concentration of .424M formic acid is prepared in a laboratory. State the ionization equation for an aqueous solution of formic acid as well as determine the ph of the solution prepared above.
The student puts the penny into hydrochloric acid, where the zinc (but not the copper) reacts with hydrochloric acid via a single replacement reaction. The hydrogen is collected at 25 degrees Celsius over water. The collected gas occupies 0.899L a..
Consider the following heterogeneous equilibrium: CCl4(g) ñ C(s) + 2Cl2(g) . Kp = 0.80 atm for this reaction at some elevated temperature. Calculate the initial partial pressure of CCl4(g)
An unknown is believed to be an alcohol because the IR spectrum showed broad absorption at 3200-3500 cm-1 and no absorption in the 1700-1750 cm-1 region.
The lowest molecular weight on the list of unknowns is formic acid, MW = 46.03 g/mol. Your titration volume should be between 10 mL and 50 mL. What is the smallest and largest masses of formic acid that would give titration volumes within these li..
A 0.003525-mol sample of an organic compound was burned in oxygen in a bomb calorimeter. The temperature of the calorimeter increased from 24.5oC to 26.7oC.
Stripping voltammetry is a trace electrochemical technique in which the current is linearly proportional to concentration. A solution of 1.0x10-7 M Pb(II) gave a current of 0.139 mA.
Write an orbital diagram for the ground state of the Calcium atom. Is this atomic substance diamagnetic or paramagnetic
sodium chloride dissolved in 225 g of water has a density of 1.98g/ml. Calculate the molarity of sodium chloride.
Explain why butyl alcohol and isopropyl iodide are not formed in the reaction. Write a suitable mechanism for the cleavage of butyl isopropyl ether with HI at 100 degrees C to form exclusively isopropyl alcohol and 1- iodobutane.
given a stock solution of a food dye having a concentration of 1.0 x 10-5 and an absorbance of 0.700. if a new solution
Balance the following full redox reactions using the lowest integer coefficients, in basic conditions. NiO2(s) + Zn(s) ? Ni(OH)2(s) + ZnO22?(aq)
What mass of sucrose, in grams should be combined with 531g of water to make a solution with an osmotic pressure of 8.95atm at 315K
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