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You are given 100g agarose (which makes a gel when dissovled in boiling water) and 100 ml buffer. Show how you would prepare 50 ml of a 1.2% agarose gel. weight and volume do not add up
A child on roller skates undergoes an acceleration of 0.8 m/s2 due to a horizontal net force of 20 N. What is the mass of the child
Three forces act on an object. A 2 N force acts due east and a 3 N force acts due north. what is the magnitude of the third force
Show how you would synthesize the product from the reactant. Show reagents, conditions, and the structures of any important intermediates. Any organic reagent may be used.
Using Newton's Version of Kepler's Third Law II Part A Pluto's moon Charon orbits Pluto every 6.4 days with a semimajor axis of 19,700 kilometers. Calculate the combined mass of Pluto and Charon
Enough of a monoprotic acid is dissolved in water to produce a 0.0200 M solution. The pH of the resulting solution is 6.32. Calculate the Ka for the acid.
A dipole is located at the origin, and is composed of charged particles with charge +e and -e, Calculate the force on a proton due to this dipole at a location <0, 3 10-8, 0> m.
What is the most stable conformation about the C3-C4 bond of 2,3-dimethylpentane
Determine the wave speed on the string and determine the speed of sound from the data given.
For 2,5-dimethylhexane, draw a Newman projection (looking down the C3-C4 bond) representing the most stable conformation, least conformation and a gauche conformer
An object of mass 1.0kg is attached to a spring with spring constant 15 N/m. what is the amplitude of oscillation
Platinum exhibits an extremely intense emission line at 214.4 nm. Could the spectroscope that you used in this lab, also be used to observe this electromagnetic radiation. Explain.
To determine the enthalpy change for this reaction, 0.158 g of Mg metal is combined with enough HCl to make 100.0 mL of solution in a coffee-cup calorimeter of negligible heat capacity.
A bullet is fired through a board 10.0 cm thick in such a way that the bullet's line of motion is perpendicular to the face of the board. Find the total time the bullet is in contact with the board
A spherical shell has an outside radius of 2.45 cm and an inside radius of a. The shell wall has uniform thickness and is made of a material with density 4.74 g/cm3. What is this maximum mass
Determine the energy of a photon of each of these wavelengths. Which photon possesses more energy, the red or the purple
Bicyclists in the Tour de France reach speeds of 34.0 miles per hour (mi/h) on flat sections of the road. What is this speed in meters per second
The average density of the planet uranus is 1.27 x 10^3 kg/m^3. The ratio of the mass of neptune to that of Uranus is 1.19. Find the average density of Neptune
A 50g marble moving at 2.2m/s strikes a 30g marble at rest. Assume the collision is perfectly elastic and the marbles collide head-on. What is the speed of the first marble
Consider an electron moving from an n = 2 orbital to an n = 1 orbital. For this to occur, will the atom need to absorb energy or dissipate energy by releasing a photon of electromagnetic radiation.
A speedboat moving at 33.0 m/s approaches a no-wake buoy marker 100 m ahead. How long does it take the boat to reach the buoy
The frequency doubled output of a Nd3+ YAG laser has a wavelength of 532nm. how many photons does the laser emit at 532nm in 3 minutes
A 11.9-g mass is suspended 1.47 cm above a nonconducting flat plate, directly above an embedded charge of q. by how much will the mass be changed
How might your description of the flame color for NaCl change if your wire containing the salt slurry was contaminated with CuCl2
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 81.0 m/s at ground level. What is its maximum altitude