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IV solutions used in medicine must exert the same osmotic pressure as blood to prevent a net flow of water into or out of the blood cells. The proper concentration for an IV NaCl solution is .90 g NaCl per 100 ml of water.
If the van't Hoff factor of NaCl is i = 1.8, what is the osmotic pressure of blood at body temperature, 37 degrees Celsius ? (answer is atm)
The rate constant at 25oC is 3.7×10^9 mol^-1 L s^-1. In an experiment, 0.500 L of 0.020 mol L ^-1 NaOH(aq) is rapidly mixed with an equal volume of 0.020 mol L^-1 HCN(aq). Calculate the time, in seconds, required for this [OH] to decrease to 1.0×1..
How would you prepare 1.0ml of a 0.6mg/ml protein sample from a 1.0mg/ml protein stock solution in a given phosphate buffer
Define the normal boiling point of a liquid. Explain why atmospheric pressure affects boiling points of liquids.
L ?^2=-?^2 ?^2 ?^2=(1/(?sin?^2 ?) ?/(??^2 )+1/sin? ?/?? sin? ?/??) b) For the l = 2, ml = -1 state determine the average angular momentum and the average angular momentum in the z-axis
Zinc hydroxide,Zn (OH)2} Ksp = 4.1 10^{-17}, is nearly insoluble in water, but is more soluble in strong base because Zn^{2+}} forms the soluble complex ion Zn( OH )_4^{2-}} Kf = 3 10^{15}.
Using formal charges, draw the resonance form from among all the Lewis structures that is most important in describing BeCl2
human growth hormone in 25.0 mL of solution has an osmotic pressure of 0.109 torr at 25.0°C. What is the molar mass of human growth hormone?
The upper falls in Yosemite National park, at 440 m, is among the 20 highest waterfalls in the world. Estimate the difference between the temperature of the water at the top and bottom of the falls.
what is the percent by mass of nahco3 in a solution containing 30 g of nahco3 dissolved in 500 ml of
At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr?
a cylindrical glass tube 13.0 cm in length is filled with mercury. The mass of mercury needed to fill the tube is found to be 107.5g. Calculate the inner diameter of the tube in centimeters.
a pure diamond with a mass of 0.1000 g contains 5.014 1021 carbon atoms and has a density of 3.52 gcm3.what is the
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