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Problem- Draw the titration curve for a weak acid, HA, whose pKa is 3.2. Label the axes properly. Indicate with an arrow where on the curve the ratio of salt (A- to acid (HA) is 3:1. What is the pH at this point? (Please draw curve)
Your answer must be supported by illustrations, Please answer with work shown to receive points
When 0.052 mol of aluminum sulfate are dis- solved in enough water to make 179 milliliters of solution, what is the molar concentration of aluminum ions?
A 8.50 L sample of gas is cooled from 65 C to temperature at which its volume is 7.10L. Explain what is this new temperature. Presume no change in pressure of the gas
Calculate the [H3O+] concentration in 0.45 M solution of barbituric acid, HC4H3N2O3. Ka for barbituric acid is 1.0 X10 ^-5.
water to give a solution that has a vapor pressure of 37.2 torr at 35 °C? Assume complete dissociation of the solute and ideal solution behavior
Use the Henderson-Hasselbalch equation to calculate the pH of a solution that is 14.5 g of HF and 23.0 g of NaF in 125 mL of solution.
a container is kept at temperature of 400k. it contains 1l of oxygen and 2l of hydrogen. the pressure in the container
The price of gold is $625 per troy ounce at this writing. Explain how much heat in J is needed to increase the temperature of $5000.00 worth of gold from 23.8 oC to 77.5 oC
Then draw the substitution product formed when this enantiomer reacts with NaCN in DMSO, and indicate the stereochemistry of the product.
Describe an apparatus by which azeotrope formation can be used to drive the equilibrium toward the products, thus maximizing the yield.
Concentration of Fe(SCN)2+ in calibration Solutions-Recall that the concentration of Fe(SCN)2+ in the calibration solutions is essentially the concentration of SCN- initially in the solution
what happend of the particles of the substance in the cup (i) when it is a liquid; (ii) as it begins to evaporate; (iii) when the last bit of liquid has just evaporated.
What is the probability of finding a particle of mass m in (a) the left-hand and one-third, (b) the central one-third, and (c) the right-hand one-third
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