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The mass of a helium atom is 4.0026amu, and its average velocity at 25°C is say, using your GU-ID (Example G000abcde, yours for this problem is GU-ID G00071922, a.bcX 10^3m/s. (for your GU-ID G000abcde, use the first three non zero digits) What is uncertainly in meters in the position of a helium atom if the uncertainty in its velocity is 1%?
When a solution containing equal moles of hemoglobin and myoglobin is bubbled with a small amount of O2: A. hemoglobin will dissociate into free dimers. B. hemoglobin will dissociate into free monomers.
the temperature of the ideal gas in the container shown is 300 k. the gas occupies a volume of 1.27 m3. what would be
A gas evolved during the fermentation of sugar was collected at 22.5 degrees celsuis and 702 mmHg. After purification its volume was found to be 25.0 L. How many moles of gas were collected?
Calculate the solubility-product constant for PbF2. Ksp = (c) The Ksp of ZnSe at 25 oC is 3.60e-26. What is the molar solubility of ZnSe? solubility = mol/L
What is the percent ionization of a 1.3 M weak acid if the pH is 4.6. The pH of a 0.200 M solution of formic acid, HCOOH, is 2.38. What is the Ka for this acid
A sample of pure (1 chloroethyl) benzene had a specific rotation of 87.2 degrees, while pure R 1 chloro-1-phenyl ethane has a specific rotation of -109 degrees. This sample was reacted with excess ammonia in diethyl ether at 0 c.
positrons cannot penetrate matter more than a few atomic diameters but positron emission of radiotracers can be
For each of the following determine whether the calculated molarity would be too low too high or unaffected and explain why a. you did not react all of the excess zinc before filtering the reaction mixture
What is its solubility at a partial pressure in air of 0.00021 atm? Assume that CO2 obeys Henry's Law.
A 380. mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 630. mmHg. Calculate the moles of Ar present.
how much heat is required to raise the temperature of 789 g of acetic acid from 25 degrees celsius to 82.7 degrees celsius? Specific heat = 2.05 J/gdegreeCelsius
Calculate delta U of a gas for a process in which the gas absorbs 3 J of heat and does 10 J of work by expanding
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