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How many grams of Cl2 (MW = 71.0 g/mol) can be prepared from the reaction of 16.0 g of MnO2 (FW = 86.9 g/mol) and 30.0 g of HCl (FW = 36.5 g/mol) according to the following chemical equation?
MnO2 + 4 HCl ® MnCl2 + Cl2 + 2 H2O
Assuming that teh F-18 can be transported at 58.0 miles/hour, how close must the hospital be to the cyclotron if 63% of the F-18 produced is to make it to the hospital
The moment of inertia for CH4 can be computed from the expression I=(8/3)mR2 where R is the CH bond length (109 pm). Compute the first three energy levels for this molecule if it rotates in 3D. Explain what is the degeneracy of its rotational stat..
A Fraunhofer diffraction pattern is produced from a light sourced of wavelength 580 nm. The light goes through a single slit and onto a screen 1.0 m away. The first dark fringe is 5.0 mm from the central bright fringe. What is the slit width
Choose an appropriate buffer system to make a buffer of ph=5.00. Calculate the appropriate composition in terms of the weak acid and conjugate base
Problem- Molar nuclear mass of c-14 is 14.003241 g/mol/. The molar mass of a proton is 1.007825 g/mol. The molar mass of a neutron is 1.008665 g/mol. Calculate the binding energy (j/mol) of C-14.
A sample of gas has an initial volume of 3.9L at a pressure of 715mm Hg . If the volume of the gas is increased to 5.5L , what will the pressure be? (Assume constant temperature.) Express your answer using two significant figures.
In another experiment it was determined that for each mole of hydrocarbon, 7 moles of oxygen gas are consumed and 5 moles of CO2 gas and 3 moles of H2O liquid are produced. Find ?H per mole of this hydrocarbon (in kJ) at 298 K
which anions generally form precipitates? what are exceptions? which anions generally do not form precipitates? what
a company wishes to reduce its air conditioning cost by cooling 100cubic feet of a metallic heat sink during the night
The photon emitted or absorbed during an electronic transition between n = 1 and n = 2 in a hydrogen atom has a wavelength in the ultraviolet portion of the electromagnetic spectrum and an energy that is greater than a similar electronic transitio..
Oxygen and sulfur combine to form a variety of differenet sulfur oxides. Some are stable molecules and some, including S2O2 and S2O3, decompose when they are heated
suppose that ammonia decomposes at 600 k to establish the equilibrium nh3g 1?2 n2g 32 h2g for which k 0.395. you have
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