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Prepare a plot for the titration of a weak acid with a strong base by plotting the titration of 20.0 mL of 0.0329 M pyridinium chloride, C5H5NH+Cl- (aq), by 0.0257 M KOH. From the graph, determine
(a) The volume of titrant needed to reach the stoichiometric point
(b) The starting pH of the acid solution
(c) What is the pH at the stoichiometric point?
The heat of fusion of water is 335 J/g. How much heat would be required to melt 47.5 g of ice?
draw 3 compounds with molecular formula c5h10 with c-c double bond with no cis-trans isomers
The threshold frequency of dislodging an electron from a zinc metal surface is 8.54x10^14 Hz. Calculate the minimum amount of energy required to remove an electron from zinc surface.
what will the pH be after mixing the 100 ml of HCl solution and the solid NaOH together? Assume the addition of NaOH does not change the volume. (Molar Mass NaOH= 40.00 g/mole : Molar Mass HCl = 36.46 g/mole
To treat a thyroid tumor, a patient must be given a 170-mCi dose of iodine-131, supplied in a solution containing 41 mCi/mL. What volume of solution must be administered per dose?
Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in front of H2C2O4 and H2O in the balanced reaction
Lewis Structure for a Nitrate Ion (NO3-1). How many possible resonance structures are there for the nitrate ion
Calculate the ratio of NaF to HF required to create a buffer with pH = 4.10. Calculate the ratio of CH3NH2 to CH3NH3Cl required to create a buffer with pH = 10.22
how would you precipitate acetyl salicyclic acid from an aqueous solution of sodium acetyl salicylate and what measures would you take to ensure complete precipitation
Inside the container is an ideal gas at 1.00 , 20.0 , and 1.00 .What will the pressure inside the container become if the piston is moved to the 1.80 mark while the temperature of the gas is kept constant
How much heat (in kJ) is evolved in converting 1.00 mol of steam at 155.0C to ice at -45.0C? The heat capacity of steam is 2.01J/g x C and of ice is 2.09 J/g x C
In the formation of an acetal one mole of aldehyde requires which of the following? a. one mole of alchol b. two moles of alcohol c. one mole of alcohol and one mole of water d. two moles of water
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