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A buffer solution is formed by combining 50.0 mL of 0.022 M Benzoic acid and 20.0 mL of 0.032 M Sodium Benzoate determine what are the pH and the change in pH after the addition of 0.054 mol hydrochloric acid to the buffer solution?
Assuming the mixture has the same specific heat (4.184J/goC) and density (1.00 g/cm3) as water, calculate the heat (in J) transferred to the surroundings, qsurr.
What is the pH of a solution prepared by mixing 200 ml of 0.1 M HCl with 300 ml of 0.1 M sodium acetate and diluting the mixture to 1 L?
Suppose that you developed your own new temperature scale, denoted oN. You chose 30.0oN as the temperature of freezing water and 280oN as the temperature of boiling water at 1.0 atm pressure.
A solution of 5.00g of an organic compound in 25.00g carbon tetrachloride boils at 84.8 c at 760torr. What is the molecular weight of the compound. (bpt ccl4 = 76.5 C, Kb = 5.03 C/m)
2K(s)+2H2O(l)--> 2KOH(aq) + H2(g) A 5.00 g chunk of potassium is dropped into 1.00 kg water at 24 deg C. What is the final temperature of the water after the preceding reaction occur.
Which elements exist as three-dimensional, solid structures in their most stable states under atmospheric conditions. Check all that apply. a.)Cl b.)Hg c.)Si d.)Br e.)Mg f.)O g.)Kr h.)I
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of Br- is doubled? Just put in the number as a whole number or fraction.
Why is the temperature 60 instead of 328K?
determined that each molecule of the unknown base could accept two protons. What is the molar mass of this unknown compound?
Explain The Chemistry of Food Composition, find the nutritional values/info in food from USDA Nutrient Data Laboratory?
Which of the following statements related to kinetic-molecular theory of gases is correct for an ideal gas? A. Gas particles move in a zigzag pattern until they collide with something.
Nitrosyl chloride (NOCl) decomposes at elevated temperatures according to the equation 2NOCl(g) ->2NO(g) + Cl2(g). Calculate Kp for this reaction at 680°C. (For this reaction ΔH° = 81.2 kJ/mol, ΔS° = 128 J/K·mol)
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