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Determine the molecular mass of the protein ? 14.0 mg of a certain protein was dissolved in the water to make a solution of 4.50 mL at 21.0 o C if the osmotic pressure is 1.25 torr.
The combustion of hydrogen-oxygen mixtures is used to produce very high temperatures required for certain types of welding. Compute the reaction to be
Determine the maximum wavelength of light that will still break these molecules apart. It requires 496.0 kJ/mol to break O2 molecules into atoms.
Discuss what problem will ensue if the level of the developing liquid is higher than applied spot in a TLC analysis? Discuss what will be the result of applying too much compound to a TLC plate?
Determine the maximum number of Cs+ ions that can be formed per joule of energy absorbed by a sample of gaseous Cs atoms?
Determine the pH and the concentrations of bicarbonate, carbonate and the carbonic acid after 10.00mL of 0.100F nitric acid are added to the original solution.
Determine the populations of the first and second excited states relative to the ground state for atomic hydrogen at 300K supposing that it obeys the Maxwell-Boltzmann statistics.
Determine the volume of 1.24 M sulfuric acid determine the volume of 1.24 M sulfuric acid in milliliters that is needed to completely neutralize 40.00 ml of 1.60 M sodium hydroxide.
The time T essential to make the enlargement of the photo negative differs directly as area A of enlargement. If 24 seconds are needed to make the 3-by-4 enlargement, determine time required for 5-
A car of 2000 kg is traveling on a banked curved icy road. The velocity of the car is 25 m/s and the road consists of a radius of curvature of 500 m. When the car is to travel on the icy road withou
At a temperature of 30°C a sample of carbon monoxide was prepared and collected over water a total pressure of 758 torr. It occupied a volume of 262 mL.
A spherical capacitor is made from the two concentric spherical conducting shells separated by air. The Inner sphere consists of radius a = 5 cm and outer has radius b = 10 cm. The capacitor is char
Compute a system of two oppositely charged the sphere hanging by strings and separated by a distance r 1 as shown in the accompanying illustration.
Sketch the circuit for a 6-bit D-to-A converter, where at least one resistor consists of the value of 128 kilo Ohms. Be certain to label the values of all resistors and the possible input voltages f
A mixture of 3.00 moles of nitrogen and 5.00 moles of neon occupy a volume of 36.0 liters in a vessel where the total pressure is 6.00 atm. Determine the partial pressure of the neon in the contain
An "ice calorimeter" can be used to calculate the specific heat of a metal. A piece of hot metal is dropped onto a weighed quantity of ice. The energy transferred from the metal to the ice can be me
i) Determine the final velocities of the ball and bat, just subsequent to the collision?
Gravitional attraction A between two masses differs inversely as square of distance between them. Force of attraction is 9lb when masses are 2ft apart, find attraction when masses are 6ft apart?
Morphine has the formulaC17H19NO3. It is a base and accepts one proton per molecule. It is isolated from opium. A 0.682g sample of opium is found to need 8.92 mL of a 0.0116Msolution of sulfuric ac
An aluminum rod of .20 kg is lying on top of two conducting rails which are separated by 1.6m. What should the magnitude and direction of a perpendicular magnetic field be so that the rod accelerate
A solution is prepared by dissolving the 0.10 mol of acetic acid and 0.10 mol of ammonium chloride in the enough water to make 1.0 L of solution. Determine the concentration of ammonia in the
The two converging lenses are positioned in contact with each other. One having focal length 19.5 and the other 4.02. With an object 5cm from first lens where is the final image?
Calculate the percent composition of copper sulfide? Provide the percentages for both sulfur and copper. Determine the empirical formula of copper sulfide?
Find out the net electric potential energy of a non-conducting sphere of radius ro carrying a net charge Q distributed uniformly throughout its volume. Regard ro and Q as given quantities.
If 56.2 mL of BaCl2 solution is required to precipitate the entire sulfate ion in a 748 mg sample of Na2SO4, describe the molarity of the solution?