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The buffer containing human blood is carbonic acid and bicarbonate ion. In blood plasma are 0.024M of bicarbonate ion and 0.0012M carbonic acid (pKa of a body temperature of the carbonic acid is 6.1)
a. If the volume of blood in an adult is 5.0L, what is the mass of HCI that the buffer can neutralize before the pH falls below 7.0?
b. Given the volume of part A, what is the mass of NaOH that the buffer can neutralize before the pH increase above of 7.8?
A sector instrument is designed to operate with a radius of 30.0 cm and an accelerating voltage of 3000 V. Calculate the magnetic field necessary to focus the M positive ion of methane (CH^4)
How much heat is released to the surroundings when 1.5 moles of water cools from 150 to 20 at 1 atm? Note that the constant pressure heat capacities, , for water in vapor and liquid form are 36.4 and 75.3 respectively.
Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of solution.
Suppose that the microwave radiation has a wavelength of 12.4cm . How many photons are required to heat 295mL of coffee from 25.0 C to 62.0 C ? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J(gxK) , as..
(a)how do I calculate the concentration of the lycopene solution in the spectrophotometer cell before isomerization, given that the molar absorptivity of lycopene at 471 nm is 1.86 x 10^4. (b) Calculate the mass of lycopene in 3.0mL of the solutio..
Gas at 15°C and 105 kPa is flowing through an irregular duct. To determine the rate of flow of the gas, CO2 from a tank is passed into the gas stream. The gas analyzes 1.2% CO2 by volume before and 3.4% CO2 by volume after the addition
If you were to draw samples from the top of a homogeneous solution and then the bottom, would you find differences between the properties of the samples
A volume of water was delivered using a buret and experimentally determined to have a mass of 2.00-g. What was the final volume of water on the buret if the inital was 0.44-mL? [assume the density of water is 1.00g/mL]
what volume of acetylene at 25 degree c and 1.01 atm is generated by the complete reaction of 2.49 g of calcium
if 150 ml of 1.50 m perchloric acid hclo4 is combined with 500 ml of 0.125 m barium hydroxidebaoh2 then compute the
Why does the addition of the NO2+ to the acidic solution of acetanilide need to be performed at a cold temperature. What products would form if the temperature is not kept cold
Calculate the osmotic pressure of a solution containing 19.10 of hemoglobin in 17.0 of solution at 19. The molar mass of hemoglobin is 6.5*10^4 g/ml
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