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Given stock solutions of 3 M Potassium Acetate and 500 mM EDTA, and a jar of solid Tris powder (molecular mass = 121 g/mol), how much of each component (including water) do you need to make 200 mL of a solution of 75 mM Potassium Acetate, 20 mM EDTA, and 100 mM Tris? Assume the density of Tris powder is 1 g/mL.
Need to give specific examples from the text Technology and Society about The Prolongation of Life and Reproductive Ectogenesis: The Third Era of Human Reproduction and Some Moral Consequences discuss some of the moral and ethical issues that caus..
tarzan swings on a 28.0 m long vine initially inclined at an angle of 32.0° with the vertical. what is his speed at the bottom of the swing if he starts from rest
Favorable direct materials cost variance
Two separate containers filled with nitrogen gas, each contain 0.16 moles of gas. Container 1 has a volume of 0.188 L at a temp of 169.2 K. The second container is kept at 247.8 K. What is the volume (in liters) of nitrogen gas in container 2. Con..
A 40 kg child stands on the edge of a rotating merry-go-round with a radius of 2m. The moment of inertia of the merry-go-round is 200 kg-m^2. What is the angular velocity of the merry-go-round just after the ball is caught
Lane has been approached by Casey Henderson
A uniform electric field of 1.5 × 104 N/C is oriented in the positive x direction. A uniform magnetic field of 5 T is oriented in the negative x direction. What is the net force on the proton
Determine the ending inventory and the cost of goods sold under each of the assumed cost flow methods
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of KOH required for precipitation to begin in each case.
Three resistors of resistance 2 ?, 3 ? and 4 ? are connected in series with a 10 V battery. In which resistor is the greatest power dissipated
Calculate the amount of energy in kilojoules needed to change 117g of water ice at -10degrees Celcius to steam at 125 degrees Celcius
in a combustion experiment it was found that 12.096 g of hydrogen molecules combined with 96.000 g of hydrogen
A piece of gold foil has a volume of 0.645cm^3. If the piece of gold measure 10.0 cm by 12.5cm, what is the thickness of the foil
A solution of methylamine CH3NH2 has a pH of 10.64. How many grams of methylamine are there in 100.0 ml of solution
In the equation below, fill in the blanks with the appropriate whole numbers to provide a balanced equation: ___ EtCH=CHEt + ___ KMnO4 --> ___ EtCO2K + ___ MnO2 + ___ H2O + ___ KOH
Determine whether each of these species follows the octet rule, is octet deficient (central atom works with less than eight electrons in its valence shell), or has an expanded octet (central atom works with more than eight electrons in its valence..
After you have made your observations, you can release the vacuum and allow the pressure inside to return to atmospheric pressure. Do this by removing the pumper and squeezing the rubber septum as indicated.
Calculate the enthalpy of vaporization of Br2. This element has vapor pressures of 271 mm Hg and 565 mm Hg at 30.0 °C and 50.0 °C, respectively.
Under the same conditions of temperature and pressure, it takes an equal volume of N2 12.00 min to effuse through the barrier. Calculate the molar mass of the gas and suggest what gas it might be
if the tank is heated, what is the maximum pressure that will be attained in the tank before the plug will melt and release gas?
Construct a frost circle for imidazole with one 2p orbital on each atom of the ring, and show relative energy of all pi molecular orbitals. fill in the appropriate number of electrons
The reaction described in Part A required 3.50L of calcium chloride. What is the concentration of this calcium chloride solution
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