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Describe the titration curve for the titration of a weak base with a strong acid. Indicate the chemical reaction, the points that correspond to the equivalence point, the pH = pKa and the region with maximum buffering.
what weigh tof CaCO3 is required to completely react 135 ml of a 0.665M solution. Must show set up.
Suppose 1.07 g of FeCl3 is placed in a 75.0 mL volumetric flask, water is added, the mixture is shaken to dissolve the solid, and then water is added to the calibration mark of the flask. Calculate the molarity of each ion present in the solution.
In the reaction between glucose and oxygen 10.0 g of glucose reacts and 7.50 L of carbon dioxide is formed. What is the percent yield if the density of CO2 is 1.26 g/L?
To estimate the percentage of all-trans-lycopene present in the original tomato paste, should you average the percentages obtaned by all the members of your team? If not, what should you do, and why?
Hydroxyl radical (OH) is produced from the photolysis of H2O or through reaction with excited oxygen, H2O + hν --> H + OH or O* + H2O---> 2OH
Hydrochloric acid (HCl) reacts with sodium carbonate (Na2CO3), forming sodium chloride (NaCl), water (H2O), and carbon dioxide (CO2). This equation is balanced as written
When NH3 is prepared from 28 g N2 and excess H2 the theoretical yield of NH3 is 34 g. When this reaction is carried out in a given experiment, only 30. g is produced.
The substitution reaction of H2S-BH3 with NH3, which generates 2 product molecules, assuming that no species exceeds the octet rule. Given the following information:
a sample of nitrogen occupies a volume of 600 ml at 60 celcius and 650 mm hg of pressure. what will be its volume at stp?
This reaction is a catalytic hydrogenation that only partially reduces an alkyne. Consider whether the hydrogenation
Calculate the minimum mass of hexane that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.
Balance the following reaction, which occurs in acidic aqueous solution, using the smallest possible integer coefficients and adding H+ and H2O as necessary
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