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Part 1) If you purchased 1.11 muCi of sulfur-35, how many disintegrations per second does the sample undergo when it is brand new?
Part 2) A 85.0-kg person is exposed to 809 rad of radiation. How many joules did this person absorb?
A sample of Nitrogen gas occupies 1.55L at 27.0 degrees C and 1.00 atm. What will the volume be at -100.0 degrees C and the same pressure?
The decomposition of N2O into N2 and O in the presence of gaseous argon follows second order kinetics with K= (5.0x10^11 Lmol^-1s^-)e^-29000K/T. What is the energy of activation of this compound
Which compounds reacted only with AgNo3 in ethanol. Why. Did any compounds appear not to react under either condition, even when heat was added ? Explain, for each compound, why it might not react by a substitution reaction.
What is the mass of a glass empty beaker? What is the mass of a glass beaker with 60mL water?
Draw a Lewis structure for H3C-NO2. Both oxygen atoms are directly attached to the nitrogen atom. If you take formal charge considerations into account, how many -bonds are in the molecule?
Calculate the velocity of a neutron whose de broglie wavelength is 500pm. The mass of the neutron is 1.009 amu.
A hydrogen molecule in it's ground vibrational state with KE=10eV coollides with heavy atom metal surface and no energy is transferred to the surface. The surface can be modeled as an infinite potential wall.
The activation energy for the following first-order reaction is 318 kJ/mol. N2O5(g)-->2NO2(g)+(1/2) O2(g). The value of the rate constant (k) is 6.65x10^-5 s^-1 at 84 degrees C. What is the value of k at 49 degrees C. (R=8.314 J/mol K)?
Sodium Bisulfite UseThe non-shrinking, non-warping nature of ultramarine blue, along with its exceptional heat and light stability has led to the development of a range of high quality ultramarine blue pigments specifically for masterbatchs applicati..
A cylinder contains 975 grams of chloroform, CHCl3, How many atoms of carbon are in the sample? How many atoms of chlorine are in the sample?
Petroleum is a fossil fuel containing many different carbon compounds. If the carbon atoms in petroleum have been in the ground for 325 million years
Determine the change in entropy for the following reaction: SO3(g) + H2O(liquid) = H2SO4(liquid) Given:The following values of Standard Entropy at 25 deg C: SO3 = 256.2 Joules/K mol H2O = 69.9 Joules/K mol H2SO4 = 156.9 Joules/K mol
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