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0.11 g of a monocarboxylic acid is neutralized by 12.5 mL of a 0.1 N sodium hydroxide solution.
a. What is the molecular weight of the acid?
b. Suggest a molecular formula for this acid.
c. How many carboxylic acids of this molecular formula are possible?
A hydrated form of copper sulfate (CuSO4·x H2O) is heated to drive off all the water. If we start with 9.47 g of hydrated salt and have 5.29 g of anhydrous CuSO4
a sample of molten iron occupies of a volume of 7.11 x 10-3 l. if the density of iron is 7.86 gcm3 what is the mass of
Consider the case is which the volume and temperature of ONE mole of an ideal gas depends explicitly on the time, t. obtain an equation (a differential equation essentially)
Under the standard conditions of 1 bar pressure and 298.15 K, the equilibrium constant Kp for a gas phase reaction is 9.00E-7. Calculate the value of the Gibbs free energy change G,std for this reaction (under standard conditions at 25degC)
given the following substances, xenon, ammonia, iodine monochloride, and fluorine, and the following statements,
What is the pH of a 0.175-M potassium formate solution, KHCOO? The ionization of formic acid is 2.1 x 10^-4
What volume of hydrogen gas is produced when 68.4 g of iron reacts completely according to the following reaction at 25 C and 1 atm iron (s) + hydrochloric acid (aq)--------- iron(II) chloride (aq) + hydrogen (g)
a buffer that contains 0.52 m base b and 0.33 m of its conjugate acid bh has a ph of 8.78. what is the ph after 0.0032
Describe the reaction as endothermic or exothermic, and reversible or irreversible. B) A reaction has Horxn = 5.0 kJ/mol and a forward activation energy, Ea = 55 kJ/mol. What is the activation energy for the reverse reaction?
The terms SCOT, WCOT, & PLOT are frequently used to describe types of GC columns. Specifically how do these columns differ from "Packed" columns in their structure and function
If the density of ethanol at room temperature is 0.789g/ml, calculate how many grams of ethanol would be required to fill a typical 13.0 gallon car gas tank. How many grams of glucose would be required to fill the gas tank
A box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 427cm^3 and the total mass is 4.36 kg . What percentage of the spheres are copper?
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