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For a solution containing 0.0060 M calcium nitrate and 0.057 M nitric acid, calculate the activity of the calcium ion.As noted in the general instructions for this problem set, compute the the activity coefficient of the calcium ion from the Debye-Huckel equation based on the ionic strength and the hydrated ionic diameter given in your text.
When 29.0 mL of 0.605 M H2SO4 is added to 29.0 mL of 1.21 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate ?H of this reaction.
Choose all of the processes from below which describe changes which are independent of the path by which the change occurs. the elevation increase experienced by a traveller travelling from Grand Isle, LA to Denver, Colorado
Calculate the number of grams necessary to prepare 50. ml of 0.45 M NaCO2H. Calculate its pH.
What is the basic structure of phosphatidyl cholines, and how do they work as emulsifiers? Why is there so much research interest in phosphatidyl cholines
A particulate water sample that is saturated in CaF2 has a Ca2+ content of 105 ppm (that is, 105 g Ca2+ per 10^6 g of water sample).
Consider the reaction CaCN2 + 3 H2 O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
Which of the following would you expect to be a molecule and which would you expect to be part of an ionic solid. Drag the appropriate compounds to their respective bins. CO, NO, LiCl, HBr, BaS, RbCl, SrO, LiBr
The conductance of an aqueous solution of trans-[Co(en)2Cl2]Cl changes on standing overnight. Would you expect it to incease or decrease. Why
A 50 mL sample of 0.5 M HCl is titrated with 0.5 M NaOH. What is the pH of the solution after 28 mL of NaOH have been added to the acid
What will the volume of the gas be when dried and measured at STP ( vapor pressure of water at 32 degree Celsius=35.7 torr)
A solution is made by mixing 4.6 mL of 0.274 M Fe(NO3)3 and 656.0 mL of water. What is the concentration of Fe3+ in the resulting solution?
consider the titration of a 26.0 mL sample of .175M CH3NH2 with .155M HBr. Determine each of the following. 1) the initial pH 2) the volume of added acid required to reach the equivalence point
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