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An enzyme has a maximum velocity of 48 nmoles substrate converted per sec. In the presence of 4 microM inhibitor, Vmax is 36 nmoles substrate converted per sec with no change in Km. Determine the K
If you had isolated ferrocene from diethyl ehter on the roto-evaporator, what would be the problem with leaving it under vacuum for an extended length of time to remove excess solvent?
A skier slides horizontally along the snow for a distance of 10 m before coming to rest. The coefficient of kinetic friction between the skier and the snow is µk = 0.030. Initially, how fast w
CH4 is one of the most important anthropogenic greenhouse gases but it has significant biogenic sources ~ 50% of the total. Its present day mixing ratio in the northern hemisphere (NH) is ~ 1800 ppb
Based upon your experiences, suggest what would be the result if we heated a mixture of dichloromethane (bp 39-40 Celcius) and nappthalene (C10H8 with mp 80-82 degrees celcius and bp 218) to 60 degr
When she leaves the track, she follows the characteristic path of projectile motion. Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track.
If the reaction of Mo(CO)6 with mesitylene was conducted in the presence of air, what would likely be the decomposition products?
The nonconservative wind and lift forces take the balloon up, doing +9.70 x 104 J of work on the balloon in the process. At what height above the surface of the earth does the balloon have a speed o
As a system increases in volume, it absorbs 52.5 J of energy in the form of heat from the surroundings. The piston is working against a pressure of 0.500 atm. The final volume of the system is 58.0
A sol. of unknown Calcium concentration is titrated using EDTA. The EDTA is first standardized against a primary standard Zinc sol. prepared by dissolving 0.4088g of Zn in 1.000L of sol.
After flying for 15 min in a wind blowing 42 km/h at an angle of 28° south of east, an airplane pilot is over a town that is 56 km due north of the starting point. What is the speed of the airpl
Cyanides are toxic molecules featuring C-C-N bonds. Isocyanides are an unstable group of molecules where the order of bonding has changed to C-N-C. Under normal conditions, isocyanides will convert
To obtain maximum magnification and an image that can be seen clearly by a normal eye, where should the object be placed?
What is the direction of the velocity of ship A relative to B? After what time will the ships be 155 nautical miles apart?
A solution is 0.0010 M in each of the following cations; Ag+, Hg2 +, and Pb +2. The Ksp values for AgCl, Hg2Cl2 and PbCl are 1.8x10^-10, 1.2x10^-18 and 1.7x 10^-5 respectivly.
Suppose the player runs at speed 5.9 m/s relative to the field while he passes the ball with velocity vector v BP relative to himself. If vector v BP has magnitude 7 m/s, what is the smallest angle
How many liters of the antifreeze ethylene glycol (C2H6O2) would you add to a car radiator containing 6.50 L of water if the coldest winter temperature in your area is -20.0 degrees C?
A 61 kg worker starts walking from one end of the car to the other in the direction of motion, with speed 2.0 m/s with respect to the car. In the time it takes for him to reach the other end, how fa
A solution is made from 96 g of a nonvolatile solute in 80 grams of water. The solution has a vapor pressure of .312 atm at 75 degrees C. Calculate the molar mass of the nonvolatile solute. The vap
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 80.2 m/s at ground level. The engines then fire, and the rocket accelerates upward at 3.80 m/s2
A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm at a constant temperature. Calculate the work in units of kJ for the gas expans
If the internal energy of a thermodynamic system is increased by 300. J while 75 J of expansion work is done, how much heat was transferred and in which direction, to or from the system?
A sol. of unknown Calcium concentration is titrated using EDTA. The EDTA is first standardized against a primary standard Zinc sol. prepared by dissolving 0.4088g of Zn in 1.000L of sol. A 20.00mL a
A 447 cm3 volume of Na2CO3 solution was warmed with an excess of sulfuric acid until all action ceased. A 5.0 L volume of dry CO2 gas measured at STP was given off and collected. What was the molar
The change in the animal's velocity takes 1.7 s. (Use east as the positive direction.) (a) What is its acceleration from the prespective of the cameraman?