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Problem- What is the proton concenteration in a solution of 102.7 mM acetic acid (this concentration represents the sum of both the acetic acid and the deprotonated acetate) at pH 5.77 if the pKa of acetic acid is 4.76? Report your answer in microM to the nearest 0.1 microM.
Show all work, use additional paper if necessary.
benzoyl chloride c6h5cocl reacts with water to form benzoic acid c6h5cooh and hydrochloric acid. this first-order
What is the cell potential when the solutions are altered, so [Ag+] = 1.25 M and [Cu+]= 0.25M
The compound MgSO4 is called Epsom salts. How many grams will you need to prepare a bath containing 5.80 moles of Epsom salts? Express your answer using three significant figures.
Consider the cell reaction Sn(s) + Cu2+(aq) ? Sn2+(aq) + Cu(s). The value of Ecell is 0.447 V at 25°C. Calculate the value of ?G° and K for this cell.
how many grams of urea must be added to enough water to obtain 115 ml of a solution with an osmotic pressure of 2.7 atm at 35 degrees celsius
The oxidation state for an element that loses 3 electrons?
Calculate the number of moles of BA(OH)2 that will react with 0.600 mol of H3PO4 to form BA(H2PO4)2
What is the ratio of [HPO4^2-]/{H2PO4^-] in blood (pH7.4) and urine (pH 5.5)? Phosphoric acid has three pka's: 2.1/6.86/12
what would be the concentration in the pond (and outlet stream) after 2 days? Inlet and outlet flows are both 280 m3 per day.
Compute the [H+] and pH of a 0.0040 M hydrofluoric acid solution. Remind that the Ka of hydrofluoric acid is 6.8 × 10-4. Utilize the method of successive approximations in your calculations.
Calculate the concentration of cadium chloride contaminant in the original groundwater sample. Round your answer to 2 important digits.
Suppose you have made 1L worth of a mixture of methanol and water, by mixing 3 parts of methanol and 2 parts of water by mass. Assume for simplicity that the volume of the mixture is exactly equal to the sum of the volumes of the ingredients
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