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A sample of Nitrogen gas at 24.8 degree C and 61.2 torr occupies a volume of 16.6 L. What will the gas pressure be if the volume is changed to 44.4 L and the temperature is changed to 38.5 C?
What is the difference between electron geometry and molecular geometry? How can knowing both assist in determining whether a molecule is polar or nonpolar?
A rock contains 0.42 mg of Pb-206 and 0.53 mg of U-238. Approximately how many U-238 atoms were in the rock when it was formed billions of years ago? (The half life for 238U-->206Pb is 4.5x10^9 yr.
to a sample of alkaline earth metal carbonate mco3 0.250 g was added 30.0 ml hcl 0.250 ml. carbon dioxide gas evolved
if i have 0.04M SDS, 0.01M NaCl , the volume of SDS is 0.2 ml and the total volume is 50.2 ml then how i calculate the concentration of ions from the mixed solution of SDS/Nacl
If the pH of a 1.00-in. rainfall over 1600 miles^2 is 3.30, how many kilograms of sulfuric acid, H2SO4, are present, assuming that it is the only acid contributing to the pH. For sulfuric acid, Ka1 is very large and Ka2 is 0.012.
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 8.10 nm in diameter?
Could someone please explain why synthesized soap and detergent have different reactions when they are mixed with calcium chloride
2.50g of KClO3 decomposes by the equation: 2KClO3=2KCl+3O2. What volume of O2 is produced at 25 degree C and a pressure of 750 mmHg
4.41-g sample of a salt dissolves in 9.10 g of water to give a saturated solution at 25°C. What is the solubility (in g salt/100 g of H2O) of the salt.
What is the energy associated with an electron transition in a H-atom from n=1 to n=3? from n=2 to n=4. What is the photon wavelength associated with each of the transitions in 8
Determine how many moles of CO 2 would have to be combined at constant temperature and volume to increase the amount of CO to 0.300 moles?
Calculate the standard cell potential at 25 degrees celsius for the reaction X(s)+2Y+(aq) -> X^2+(aq)+2Y(s) where delta H = -733 kJ and delta S = -279 J/K
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