Calculate the ph of a buffer made
Calculate the pH of a buffer made with 0.50M phosphoric acid and 0.75M sodium dihydrogenphosphate. Ka = 7.5 x 10-3.
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A wave in the ocean has amplitude of 3m. winds pick up suddenly, increasing the wave's amplitude to 6m. how does the change in amplitude affect the wave's frequency and the amount of energy it transports?
A 0.12M solution of a weak acid HA has pH = 2.49. What is the Ka of this acid?
if 25.00 cm3 of 0.1000M NaCl is mixed with 25.00 cm3 of 0.1000M AgNO3, what is the concentration of Ag+ remaining in solution? Is this sufficient to precipitate any silver chromate?
A student mixes 5.00 mL 2.00 x 10-3 M Fe(NO3)3, 2.50 mL 2.00 x 10-3 M KSCN, and 2.50 mL H2O to give a solution having a total volume of 10.00 mL. She finds that in the equilibrium mixture the concentration of FeSCN2+ is 7.50 x 10-5 M. What is the
Water with a static pressure of 1.96kN/M2 flows through an 800 mm diameter pipe. A pitot tube pressure gage in this pipe reads a pressure of 5.88 kN/M2. How do you determine the volume flow rate (Q) of the water? (Q = 1.40 M^3/sec, V=2.79 M/sec)
The reaction if the concentration of H2 in the equilibrium mixture is 0.426M what mass of methanol was initially introduced into the vessel?
A zero-order reaction has a constant rate of 3.70×10-4 . If after 45.0 seconds the concentration has dropped to 2.50×10-2 , what was the initial concentration?
When the mixture has come to equilibrium, the concentration of iodine monobromide is 1.190 M. What is the equilibrium constant for this reaction at 350°C?
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The population (P), intervention (I), comparison (C), outcome (O), and time (T), or PICOT, format was used to prepare the following clinical question
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