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NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.041 M in NH4Cl
What is the pH of a solution made up by adding 100 mL of 0.00010 M HCl to 50.0 mL of 1.0E-4 M NaOH
What is the approximate pH of a solution of the salt NH4(O2CCH3) (ammonium acetate)? No calculations -- only reasoning needed. pKa/pKb values in your notes
Which two reagents below would you choose to synthesize 3-ethyl-2-phenyl-2-pentene using the Wittig procedure? (triphenylphosphine, solvents, and a base are provided)
If 0.334 g of water was obtained from the equation N*M H2O ?N + M H2O, how many grams of the hydrate were heated
what is the molar solubility of caf2 in 0.10 m naf solution at 25°c? the ksp for caf2 is 1.5 x 10^-10
Draw a Lewis structure for each of the following molecules and determine its molecular geometry. What kind of intermolecular forces are present in each substance?
The product was then treated with toluene. Will the product result in the formation of 1-hexene, ethyl hexyl ether (1-ethoxyhexane), or both? Please explain.
What weight of A would be removed from a solution of 21 g of A in 50 mL of water by a single extraction
How many grams of H3PO4 are in 175 mL of a 3.5 M solution of H3PO4?
Determine the half-life of benzoyl peroxide in benzene at 60°C. By how much will the initiator concentration change after 90 minutes of polymerization? Assume kd=2.0x10^-6 L/mol-s
What osmotic pressure would develop across the membrane if the temperature is 26.0 degrees Celcius?
A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.49. What was the concentration of the solution
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