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Compute Ksp for the following salts (KIO4, La(IO3)3, and Ba3(PO4)2) in an aqueous solution at 25°C in which = 0.0100. Utilize the table of Ksp values below as well as a table of activity coefficients to solve this problem.
A balloon is filled to a volume of 55.0 ml at a temperature of 40.0 degrees Celsius. The balloon is then heated up at steady pressure to a temperature of 94.0 degrees Celsius. Explain what is the final volume of this balloon in liters
a student was as ked to determine the molecular weight of a weak monoprotic dry acid hx. she was provided the following
When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2Al(s)+6HCl(aq) yeilds 2AlCl3(aq)+3H2(g). what mass of Al(s) if required to produce 725.5 mL of H2(g) at STP
Calculate weight percent of Fe in ore titrating with potassium dichromate with the following information:
Is there enough info to calculate the pressure of gas if the barometric pressure is 755 torr and if so what is the answer
what happens to the entropy of the system upon opening the valve between the flasks? 1. The entropy remains the same. 2. There is too little information to assess the change. 3. The entropy decreases. 4. The entropy increases.
Describe which would give a more accurate determination by freezing point depression of the molar mass of substance that is soluble in either solvent. Why
Titration of 15mL of 0.125M unknown base with 0.103M HCl required 18.2mL to reach the equivalence point. the pH at the equivalence point was 2.74.
Into how many tubes can you dispense 450microliters of buffer using a micropipette set at 2.5 microliters
What volumes of water (steam) and nitrogen monoxide are measure under same conditions of T and P.
Synthetic polypeptides can assume an helical structure under appropriate conditions. Indicate whether polylysine and polyglutamate form an helix or a disordered structure at the indicated pH values.
Assuming that Hf and S values are independent of temperature, determine theoretically at what temp,T, will this reaction become spontaneous at standard conditions
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