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Be sure to calculate what volume of each 0.50M solution should be mixed to give a total volume of 50.0mL and the reactants in the correct stoichiometry.
A film of oil lies on wet pavement. The refractive index of the oil exceeds that of the water. what is the longest visible wavelength (in vacuum) for which the film will appear bright due to construct
A solution is prepared by measuring 33 mL of the concentrated HCl, adding it to water, and diluting to 0.500 L. Calculate the approximate molarity of this solution from the volume, percent compositi
1.201 g of a solid white acid are dissolved in water and completely neutralized by the addition of 28.41 mL of 0.418 M NaOH. Calculate the molar mass of the acid, assuming it to be a monoprotic acid
What is the ratio of the conjugate base concentration to the acid concentration, that is, [B- ]/[HB] when the indicator switches to the acidic color
A sample is known a carbonate. How can I design an experiment that can allow me to determine the exact identity of the carbonate
A perfectly reflecting flat mirror is uniformly illuminated by light striking it perpendicularly. Calculate the intensity of the light
How many outer atoms and lone pairs are present in a molecule with a see-saw geometry
When light from your desk lamp passes through a 45-mm focal length lens, How far is the desk lamp from the lens
Bowling balls can be made from a variety of substances and are required to have a circumference of roughly 27.8 inches. compute the thickness of the shell
Calculate the pH at the equivalence point in a titration 45.7 mL of 0.17 M chloropropionic acid with 0.4 M KOH.
A wheelchair athlete is training on a stationary ergometer. Her wheel's angular velocity is 3 rev/s and diameter is 80.0 cm. What is the linear velocity at the wheel's circumference
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added)? The Ka for HOCl is 3.0 x 10-8 M.
A cyclist hits the brakes and decelerates. His wheels were spinning at 175 rev/min initially and 40 rev/min after 5 s of deceleration. Compute the average angular acceleration (in rad/s2) of his whee
At a certain temperature, Keq = 150. Calculate the concentrations of Fe 3+ and SCN- in a solution that has an equilibrium FeSCN2+ concentration of 4.5 X 10^-5 M using the equation . Assume the equil
What was the ?t for the metal c) how much heat flowed into the water d) taking the specific heat of water to be 4.18J/g°C, calculate the specific heat of the metal e) what is the approximate mol
A nickel crystal is used as a diffraction grating for x-rays. Then the same crystal is used to diffract electrons. what is the kinetic energy of each electron
The molar mass for NaCl and water are 58.443 g/mol and 18.015 g/mol, respectively. Calculate the partial molar volumes for NaCl and water in a 0.35m solution.
Calculate the number of milligrams of iron in a vitamin tablet when there are 3.9 moles of solute (ferrous fumarate solution)
HCl (aq) + NaOH (aq) ? NaCl (aq) + H2O (l) A known amount of NaOH is added to a solution containing an unknown quantity of HCl (aq).
the likely intermediates in the mechanism and the expected isomeric products from the pathways of the mechnanism. Also please help to identify the major product attained.
Draw the structure of 18-crown-6, a compound that is commonly used to bind certain metal ions
A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. What is the acceleration of the rising balloon
Draw the structure of the alkoxide and the alkyl bromide needed to produce 2-ethoxy-2-methylpropane