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In a soda-acid fire extinguisher, concentrated sulfuric acid reacts with hydrogen carbonate to produce carbon dioxide, sodium sulfate and water. How many moles of sodium hydrogen carbonate would beneeded to react with 150.0g of sulfuric acid? How many moles of product would be formed?
Which of the 5 most common active ingredients is the most effective by mass at neutralizing excess stomach acid
Define the binding energy of electrons to copper metal is 374.2 kJ/mol. State what is the longest wavelength of light that will eject electrons from copper metal
Consider the titration of a 25.0 mL sample of 0.100 M HC2H3O using 0.100 M NaOH as the titrant. Ka=1.8 x 10^ -5. Calculate the pH of the analyte after 10.00 mL of 0.100 M NaOH has been added. Use the Henderson-Hasselbalch equation.
Determine if the following solution is acidic, basic or neutral and then calculate the pH of each. Assume T = 25°C.
a solution was prepared by mixing 43.00 ml of 0.190 m hno3 and 108.00 ml of 0.150 m hno3. calculate the molarity of the
what is the freezing point of a benzene solution containing 400 g of benzene and 200 g acetone c3h6o? kf for benzene is
What is the concentration of hydrogen ions in a solution containing 0.321 M HOCN (cyanic acid) and 0.223 M (NaOCN) (sodium cyanate)? The ionization constant of cyanic acid is 3.5 × 10-4.
Name the major organic product when the given alkyl bromide is treated with sodium azide followed by LAD (LiAlD4 and then D2O workup).
Calculate the zero-point energy of a harmonic oscillator consisting of a rigid CO molecule adsorbed to a metal surface by a bond of force
Complete the following reactions by replacing the question mark with the appropriate formula. Choose the correct enzyme or enzyme class.
Calculate the pH at the equivalence point for the titration of 0.230 M methylamine (CH3NH2) with 0.230 M HCl. The Kb of methylamine is 5.0× 10-4.
what is the equilibrium pressures for each of the gases if the initial partial pressures are PHF = .500 atm, PH2=1.00x10^-3 atm, and PF2=4.00x10^-3 atm
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