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Make a rough plot of pH versus milliliters of acid added for the titration of 50.0 mL of 1.0 M NaOH with 1.0 M HCl. Indicate the pH at the following points, and tell how many milliliters of acids are required to reach the equivalence point.
Compute the final temperature of the solution (assuming no heat lost to the surroundings ) the solution has a specific heat capacity = 4.18 J/°C·
The delta G for the freezing of H2O (l) at -10 degrees celsius is -210 J/mol and the heat of fusion of ice at this temperature is 5610 J/mol. Find the entropy change of the universe when 2 mol of water freezes at -10 C.
A buffer is prepared by mixing 675 mL of 0.50 M formic acid, HCHO2, and 325 mL of 0.50 M sodium formate, NaCHO2. Calculate the pH.
Zinc dissolves in acid according to the balanced reaction: Zn(s) + 2H^+(aq) -> Zn^2+(aq) + H2(g) A sample of zinc is placed in the ice calorimeter. If 0.0657g of zinc causes a decrease of 0.109mL in the ice/water volume of the calorimeter
will the first drop of liquid n-heptane form? (c) At what operating temperature (°C) will 65% of the n-heptane condense
1.how many significant digits can be obtained from this instrument?2. what is the appearance of the flame when the air
During an experiment, a student adds .339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution. Assuming the solution\'s final volume is 100.0 mL,
oxygen is burned completely, 3.86 grams of CO2 and 1.26 grams of H2O are produced. What is the empirical formula of the compound?
How many grams of MgO are produced when 40.0 grams of O2 react completely with Mg
Compare solutions 2 and 4. How does the common-ion effect influence the pH of solution 4. Please explain fully, and calculate the expected pH of each of these solutions.
What ratio of concentrations of the molecular base you chose in part a and its conjugate acid would be necesarry to achieve a pH of exactly 10.00?
Because the turnover number for both substrates is nearly identical, what factors might be involved that explain the different ratio for the two substrates?
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