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A plastic film of thickness 290 nm appears to be green (?green = 510 nm), What is the plastic's index of refraction
Calculate the percent yield of the t-butyl methyl ether. MW: 93 g/mol 32 g/mol 88 g/mol Denisty: 0.85 g/mL 0.79 g/mL A mixture of 3.0 g of 1,1-diphenylethylene and 100 mg of sulfuric acid was heated
Given a column of air with a pressure of 1.57 x 10^5 Pa and an area of 1.12 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column
A mixture of 0.160 moles of C is reacted with 0.117 moles of O2 in a sealed 10.0L vessel at 500.K, producing a mixture of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of
A planet orbits a star once every 3.44 multiply.gif 107 s in a nearly circular orbit of radius 1.46 multiply.gif 1011 m. determine the tangential speed of the planet
A reaction mixture initially containing 0.520 M H2S and 0.520 M SO2 was found to contain 1.0 x 10 -3. A second reaction mixture at the same temperature initially contains 0.245 and 0.335. calculate
A train is rounding a circular curve whose radius is 2.00 multiply.gif 102 m. Find the magnitude of the total acceleration (centripetal plus tangential) of the train
Calculate the concentrations of all species in a 0.790 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
The drive propeller of a ship starts from rest and accelerates at 2.60 multiply.gif 10-3 rad/s2 for 2.15 multiply.gif 103 s. Find the total angular displacement of the propeller
A motorcyclist is traveling along a road and accelerates for 4.20 s to pass another cyclist. The angular acceleration of each wheel is +6.95 rad/s2, What is the angular displacement of each wheel
Construct a buffer to have a pH of 7.70 using HClO and NaClO (Ka = 3 x 10-8). How many grams of NaClO must be added to 1.0 L of a 0.40 M HClO solution (assume no volume change)
The quantity of charge q (in coulombs) that has passed through a surface of area 1.92 cm2 varies with time according to the equation q = 4t3 + 5t + 6, What is the instantaneous current through the s
Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products. Benzoic acid dissociate
A movie camera with a (single) lens of focal length 95 mm takes a picture of a person standing 28 m away. what is the height of the image in millimeters on the film
Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins. It is also a component of cigarette smoke. Pyridine ionizes in water as follows: C5H5N + H2O<-->C5H5NH
Based on the chemistry of an ion-exchange chromotography describe how you will calculate Mpc for your water samples.
The normal boiling points of CO and SO2 are -192c and -10c, respectively. a) At 25c and 1 atm, which gas would you expect to have a molar volume closest to the ideal value
Draw the major organic product formed by reaction of 3-hexyne with the following reagent
wo sources produce coherent light waves that come together at a detector located 1.60000 mm from one source, what is the longest possible value for the wavelength
Lactic acid (C3H6O3) which occurs in sour milk and foods such as sauerkraut, is a weak monoprotic acid.? The pH = 0.10 M solution of lactic acid is 2.43 What are the values of Ka and pKa for lactic
A 530.0g bird is flying horizontally at 2.20m/s, not paying much attention, when it suddenly flies into a stationary vertical bar, What is the angular velocity of the bar just after it is hit by the
A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill, you are told that X-281 is a monoprotic weak acid
A 6.00kg ball is dropped from a height of 11.0m above one end of a uniform bar that pivots at its center. The bar has mass 7.50kg, How high will the other ball go after the collision
Calculate the grams of Titanium that will be plated from a Ti(NO3)4 solution using a current of 15 amperes for 3 hours.
A playground merry-go-round has radius 2.10m and moment of inertia 2200kg*m^2 about a vertical axle through its center, compute the average power supplied by the child