Why do we assume the concentration (C) to be Co at 1 minute? Shouldn't it be a lower Concentration due to its removal rate of 12% per minute?
Why do we assume the concentration (C) to be Co at 1 minute? Shouldn't it be...
5. Why do we assume the concentration of acetic acid/acetate are very close to the formal concentrations when used in buffers?
Please show all work. Suppose there is a tank of 100 gallons of a salt mixture with concentration 0.25 pounds per rate of 2 gallons per minute. It is well mixed and then drained out at the rate of 2 gallons per minute. A) Write a differential equation, in terms of only A and t, that models this situation, where A is the amount of salt in tank after t minutes. Include the initial condition. DO NO1T SOLVE THE DE!...
When using a spectrometer to measure the absorbance as a function of concentration, why do we have to plot our calibration curve at the maximum wavelength (lambda max)? I know it's to get the highest point of absorbance and therefore ensure high sensitivity, but how does it affect my answers on the calibration curve? what if I didn't use lambda max?
student question: 75 mL, of water and 0.10 moles of CO.(g) are added to a on vessel at 25 °C. A) What concentration of CO.(aq) do you expect to find at equilibrium? Henry's law constant-2 4x102 mol/L atm (12 pts) I mal-o B) Modified student question: If all the dissolved Co.(aq) reacts fully with water, then what is the pH of the water after equilibrium is reached? H2CO3 Kal = 4.2x10", Ka2-4.8×10-11. (12 pts) C) If you add CaCl2 to...
When we use the Ideal Gas Law equation to calculate moles of CO2 produced, why do we divide by 2 to find the moles of glucose fermented per minute? (Your answer must be clear and specific or you won't get credit.)
A home in Florida loses electricity when a hurricane makes landfall. The hurricane is slow- moving and takes several days to move through the area. In order to power a fan and a refrigerator, the homeowner starts a generator in his garage, which has a length of 6 m, a width of 5.5 m, and a floor-to-ceiling height of 2.5 m. The garage door is closed due to the hurricane and the ventilation rate is 0.60 air changes per hour...
Assume that females have pulse rates that are normally distributed with a mean of μ=76.0 beats per minute and a standard deviation of σ=12.5 beats per minute. Complete parts (a) through (c) below.a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 72 beats per minute and 80 beats per minute.The probability is nothing.
why do we have to put (1.1696) to the power pf 1/4? where does that 1/4 come from in the formula and also why do we bave to use that (12 Points) You are thinking about purchasing a 4-year zero-coupon bond with a face value of $100. The following information is available from a well-known financial website. • 2-year spot rate is 3% rerum Getring Precenty • Forward rate f2.2 = 5% ZB is geo arruge forward we "B-4-2 Of...
3. Why can we assume in the Biuret assay that BSA (used in the standards) and casein (our protein of unknown concentration) give about the same amount of A550 per mg? 4. To calibrate the Ninhydrin assay, glycine was used. Draw the structures of Glycine, Arginine, and Threonine. Instead of glycine, would it be acceptable to use Arginine or Threonine? Explain!
Why do not we take the channel-length modulation and body-effect into consideration in Figure b,c,d? Why do we take the channel-length modulation and body-effect into consideration in Figure a? Why do we just take body-effect without the channel-length modulation into consideration in Figure e? What‘s more, in Figure e, when the Vx surpasses the gate-source voltage, is there the drain current in the M1? 2.5. Sketch Ix and the transconductance of the transistor as a function of Vy for each...