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A student used 20.0 mL of 0.1035 M NaOH to titrate 20 mL of orange juice. How many grams of citric acid were present in the sample? The molar mass of citric acid, H3C6H5O7, is 192.12 g/mol.
H3C6H5O7(aq) + 3NaOH(aq) Na3C6H5O7(aq) + 3H2O(l)
How much would an empty volumetric flask, (weighing 27.16 grams, has a volume of 100.4 cm3 ) weigh when filled with bromine, an element that has a density of 3.1028 g/cm3.
A gas occupies 4.71 liters at 62°C and 795 torr. What volume will it occupy if it is cooled to 17°C and compressed to 911 torr?
In the reaction 2-phenylacetic acid + ethanol in a H2SO4 solution yields Ethyl-2-phenylacetate, (a) which group in the acyl compound is being substituted and (b) what is the substituting group?
how much heat is absorbed when 63.7g h2o at 100 c and 101.3 kpa is converted to steam at 100 c.
Write balanced net ionic equations for the following reactions in basic solution. Express your answer as a chemical equation. Identify all of the phases in your answer.
Calculate the pH of the resultant solution of mixing together two solutions of 2 L of 1.0 M acetic acid
The energy of a vibrating molecule is quantized much like the energy of an electron in the hydrogen atom. The energy levels of a vibrating molecule are given by the equation
The mixture is 20% benzene by volume. A densitometer gives the density of the mixed stream to be 1.1 g/mL. What are the mass fractions of all three species?
How much heat (in kJ ) is required to warm 13.0 of ice, initially at -13.0, to steam at 114.0? The heat capacity of ice is 2.09 and that of steam is 2.01
When gases are collected using displacement of water,some water vapor mixes in with the gas being collected.35.2 ml of H2 gas was collected over water at a temperature of 21 Celsius degree.
A 5.325g sample of methyl benzoate, a compound found in perfumes, was found to contain 3.758g of carbon, 0.316g of hydrogen, and 1.1251g of oxygen.
The atomic mass of Potassium 39 is 38.96371 AMU. Calculate the binding energy for a mass of this nuclide using 1.008665 AMU for the mass of the neutron, 1.007276 AMU for the mass of the proton, 0.00054858 AMU for the mass of the electron
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