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Consider the titration of 50.00 mL of 0.1000 M HNO2 (Ka = 7.1•10-4) with 0.1000 M NaOH solution. What is the pH after the addition of:
a. 0.00 mL
b. 15.00 mL
c. 25.00 mL
d. 35.00 mL
e. 50.00 mL
f. 51.00 mL
Calculate the number of grams of sucrose (C12H22O11) needed to prepare 0.500 L of a 1.00 M sucrose solution. 1. 85.5 g 2. 171 g 3. 342 g 4. 684 g
If 159 of wet is collected over water at 24 and a barometric pressure of 739 , how many grams of have been consumed? (The vapor pressure of water is 22.38 .)
A 25.0 mL sample of a solution of the weak base aniline, C6H5NH2, requires 25.67 mL of 0.175 M HCl to reach the equivalence point. (Kb for aniline = 4.0 x 10-10)
What would be the electron configuration of the elements: 2NaOH(aq) + CuCl2(aq) yields 2NaCl(aq) + Cu(OH)2 (s)
oxidation of gaseous CIF by F2 yields liquid CIF3. Use the following thermochemical equation to calculate delta H reaction for the production of CIF3
strip of magnesium reacts in 3.0 mL of 5.0 M HCl over a given period of time. Evaluate the mol mg/mol HCl ratio for the reaction.
Potassium and oxygen gas react to form potassium oxide. b. Sodium and water react to form sodium hydroxide and hydrogen gas. c. Iron and oxygen gas react to form iron (III) oxide.
Estimate the change in entropy if fifty kilo joules of energy are transferred reversibly and isothermally as heat to a large block of Cu at zero degree Celsius and seventy degree Celsius?
Compute the free energy of hydrolysis of Adenosine Tri Phosphate in a rat liver cell in which the ATP, ADP and Pi concentration
Which compound is most likely to dissociate and give O2(g) at 25?C?
A first-order reaction has a half-life of 55.0 min at 25 ºC and 6.8 min at 100 ºC. What is the activation energy for this reaction
When 20 mL of a 315 mL stock solution containing 2.2 M AlCl3 is diluted to 81 mL, what is the concentration of Al3+ in the new solution.
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