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Forty-four grams of carbon dioxide occupies 32.68 L at 65°C and 645torr. Explain what is its volume at STP?
26.0 grams of an unknown sugar was dissolved in water and the final volume of the solution was brought up to 1.00 L. The osmotic pressure of this solution was determined to be 3.53 atm at 25°C. Which of the sugars below was most likely the unknown..
The density of acetonitrile (CH3CN) is 0.786g/ml, and the density of methanol (CH3OH) is 0.791g/mL . A solution is made by dissolving 21.5 mL (CH3OH) in 98.9 mL CH3CN. a) What is the mole fraction of methanol in the solution
Equilibrium constant (Kc) is 1 and inital concentrations of A and B are Cao and zero (Cbo = 0), respectively. Da is equal 2 for each reactor in series configuration. What is the overall conversion of A for above equilibrium reaction?
a 3 cubic meter tank contains 1.5 kg of a gas at 27oc and avacuum pressure of 81 kpa. what is the density and
Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (\rm nm), where 1\;{\rm nm}= 10^{-9}\;{\rm m}. What is the energy of the X-rays
The half-life of 137Ce is 30 years. How many grams of 137Ce must be produced now to have a sample containing 32 g of 137Ce 190 years from now?Answer in units of g
What is the isotropic difference (in per mil) at 25 degrees between gas, liquid, and solid phase for the elements carbon and sulfur? Show calculations
Select the most appropriate explanation of the following observation on solubility: "Hydrogen chloride, HCl, is very soluble in water." Water is a polar solvent, and it promotes the ionization of many polar molecules.
a predict the order of elution of a mixture of biphenyl benzoicacid triphenylmethanol methyl benzoate from a silica
Will AgCl(s) precipitate from 1.50 L of a solution that is 0.100 M AgNO3 and 0.225 M NH3 if 1.00mL of 3.50 M NaCl is added
Determine which ion will precipitate first and at what concentration of sulfate ion will the first precipitate begin to form?
Determine the concentration of an unknown hydrochloric acid solution that requires 70.5 mL of 1.6 M barium hydroxide to completely neutralize
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