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A 3.664-g sample of a monoprotic acid was dissolved in water. It took 20.27 mL of a 0.1578 M NaOH solution to neutralize the acid. Calculate the molar mass of the acid.
Dr. Goodchem observed that he had extracted 15.5 mL of Citral. If the density of pure Citral is 0.888 g/mL, what was the % composition of Citral found in the Orange extract.
Concentrated HCl (Molar Mass = 36.46) is sold as a 37.2% aqueous solution with a density of 1.15 g/mL. Calculate its molarity.
In standardizing a solution of HCl, it is found that 47.26 mL of the acid are equivalent to 1.216 g of pure Na2CO3, what is the normality of the acid
There are many types of energy: electrical, kinetic, gravitational potential, chemical, elastic, heat, etc. Choose an object or system in which energy is transformed from one form to another. Describe the energy transformations in this object or s..
Consider the following balanced equation: 2 N2O5 → 4 NO2 + O2. If a 5.00 g sample of N2O5 undergoes this reaction, how many grams of O2 will also be formed?
Light impinges on a 1485 line per mm diffraction grating at an angle of incidence of 39.5 degrees. What wavelength, in nm, will be reflected in the first order at an angle of 14 degrees on the other side of the normal to the grating.
How would the process of photosynthesis be affected, and in what steps, if light, CO2 concentration, and/or temperature were altered during photosynthesis
what are the differences between esterification and
describe and explain the possible effect on your results of the following experimental errors or variations. in each case, specify the component(s) whose percentage(s)
Consider 25.0 g of water at 21.7°C that are mixed with 25.0 g of water at 43.3°C in a foam cup calorimeter. The equilibrium temperature reached was 30.4°C. Calculate the calorimeter constant in J/°C.
how many grams of oxygen are produced. what are the limiting and excess reactants and how much ER remains
sketch a graph of potential energy versus dihedral angle about the c-c bond of 12-dichloroethane. show the energy
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