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Initially, a gas occupies 45.4L at STP. What volume of gas (in L) will be occupied if the temperature increases to 49oC and a new pressure of 0.54 atm?
A block of zinc has a density of 7.133 g/cm^3 and atomic weight of 65.39 g. A) Calculate the atom density of the zinc. B) Find the macroscopic thermal neutron absorption cross section for zinc, assuming that microscopic cross section for absorptio..
A sample of aluminum metal absorbs 9.86J of heat,upon which the temperature of the sample increases from 23.2 C to 39.5 C. SInce the specific heat capacity of aluminum is 0.90 J/g-K, the mass of the sample is what in grams
determine why the 2s and 2p orbitals on hydrogen are degenerate and they are not in the case of lithium.the formation
For the best system, calculate the ratio of the masses of the buffer components required to make the buffer
Octane is a major component of the gasoline for cats and trucks. When octane burns it produces carbon dioxide,water and energy. 43 500 kJ of energy is needed to drive a car 350 km. calculate how many grams of octane are needed to provide this ..
calcutate the molecular weight of surfur if 35.5 grams of sulfur dissolve in 100 grams of CS2 to produce a solution that has a boiling point of 49.48c.
Use the particle-in-a-one-dimensional-box model to calculate the longest-wavelength peak in the electronic absorption spectrum
If 4.50 moles of ethane, C2H6 undergo combustion,according to the unbalanced equation C2H6+O2--> CO2+H2O, how many moles of oxygen are required?
Predict the products of each of these reactions and write balanced molecular equations for each. If no reaction occurs
What is the purpose of distilling two mixtures whose boiling points are very close.
the solubility of the ionic compound m2x3 having a molar mass of 238 gmol is 2.89 10-7 gl. calculate the ksp of the
What is w when a gas is compressed from 38.3 L to 28.8 L using a constant external pressure of 745 mmHg? (Remember to include a "+" or "-" sign as appropriate.)
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