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A 0.250 g quantity of an acid is titrated with .0108 M NaOH. It takes 27.22 mL of NaOH to reach the endpoint. What is the equivalent weight of the acid?
The stopcock between A and B is opened. The pressure in A and B is now 219mmHg. How many moles of H20 are in the system?
Identify the most stable arrangement of the regions of high electron density. Diagram and name the type of structure that the molecules has based on positions of the atoms.
calculate the mass of hydrogen gas that could have been produced. What would the gas volume be at room temperature and one atmosphere of pressure.
Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries.
Calculate approximately the heat released when you are given a chemical equation as 2-methyl-1-propene CH 3 ) 2 C CH 2 reacts
Clearly Label the IR Spectrum of Benzoic Acid and assign the following peaks: Broad 3300-2500cm-1 3020 cm-1 1682cm-1 2. Clearly Label the IR Spectrum of Anisaldehyde and assign
Determine the empirical and molecular formulas of Ibuprofen has 75.69% C, 8.80%H and 15.51%O by mass and has a molar mass about 206g/mol.
25.00 mL of 0.25 M formic acid is titrated with 25.00 mL of .2500 M NaOh. What is the pH at the equivalence point?
A gaseous mixture of and has a density of 1.104 at 445 and 300 . What is the mole percent in the mixture?
If 101 g of CaO and 261 g of NH4Cl are mixed, what is the maximum possible yield of NH3?What mass of the excess reactant remains after the maximum amount of ammonia has been formed?
Calculate Keq for 2 moles of electron(s) in each half-reaction and a standard potential of 0.12 V. Calculate Keq for 2 moles of electron(s) in each half-reaction and a standard potential of (-0.54) V.
.850 L of 0.410 M H2SO4 is mixed with .800L of .240 M KOH. what concentration of sulfuric acid remains after neutralization
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