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The pressure on 200 ml of oxygen gas changes from 380 mm hg to 760 mm hg. The temperature does not change. What is the new volume of the oxygen gas?
Each of four compounds shown has one signal in the aromatic region and one signal in the alkyl region of its H NMR spectrum. Use the integral values to determine which compound's H NMR spectrum is shown below
iron has a density of 7.874 g/cm3. what is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000 cm by 5.000 cm?
calculate the mass in grams of NaCl Present in each of the following solution A. 11.5 g Of 6.25 % NaCl Solution B. 6.25 g of 11.5 % NaCl solution
What is the molar concentration of the solution? How many moles of solute are in the solution? What is the molar mass of the solute?
A tank is first evacuated, and then connected to a 75.0 L cylinder of compressed nitrogen gas. The gas pressure in the cylinder, originally at 15.8 atm, falls to 1.05 atm without a change in temperature. What is the volume of the tank?
how much energy is liberated when 366 g of mercury (c=0.139j/g degrees celsius)cools from 77.0 C to 12.0 degrees celsius?
A 2 mL solution containing 1.40 uCi/mL is injected into the blood stream of a patient. After dilution, a 1 mL sample is withdrawn and found to have an activity of 2.9 * 10-4uCi. Calculate the blood volume,
Determine how many moles of gas were added to the container If the pressure raised to 800. torr,?
One mole of neon gas equals how many grams? Round to the nearest hundredth. Don't forget the units. Be sure to abbreviate the units.
Concrete used in road construction is reinforced using steel bars in a grid, known collectively as "rebar." After many years, rebar will begin to corrode, and the concrete will weaken.
Calculate the pH of a buffer that contains 0.060M ammonium chloride
Compute the amount of heat required to boil 92.1 grams of benzene (C6H6), start from a temperature of 42.5 degrees Celsius.
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