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A mass of 137 g of manganese dibromide is dissolved in 330 g of water. What is the molality of the solution
An aqueous solution of CaCl2 has a vapor pressure of 84.0mmHg at 50 C . The vapor pressure of pure water at this temperature is 92.6mmHg . What is the concentration of CaCl2 in mass percent?
Draw resonance structures for each of the following molecules or ions: a) HCO2^- (C is the central atom); b) N2O (N N O).
determine the mass in grams of water that will result in a change in energy of 2.54 kj when water reacts with excess
What is the uncertainty of the position of the bacterium. Express your answer numerically in meters.
Molten carbonate fuel cells fueled with H2 convert as much as 60% of the free energy released by the formation of water from H2 and O2 into electrical energy. Determine the quantity of electrical energy obtained from converting 1 mole of H2 into H..
Draw complete lewis structure of condensed structural formula. (CH3)3(3 is a subscript)CCOCHCH2
The isomerization of cyclopropane follows first order kinetics. The rate constant at 700 K is 6.20*10^-4 min-1, and the half life at 760 K is 29 min. Calculate the activation energy for this reaction.
Decide whether or not each of the following metals dissolves in 1 M HCl . For these metals that do dissolve, write a balanced redox reaction showing what happens when the metal dissolves.
What is the pH for the solution made from 11.10 mL of 0.278 M HCl solution mixed with 70.90 mL of 0.1300 M ammonia solution ? Note that the pKa for NH4+ is 9.241
Calculate the molar concentration of HCl in a solution that has a specific gravity 1.185 and is 36.5% (w/w). Prepare from this bottle 1 L of 0.1 HCl solution.
Explain Cyclopentadiene reacts as a diene in the the Diels-Alder reaction a great deal faster than does 1,3 butadiene.
Determine the specific heat of a material if a 38 g sample of the material absorbs 40. J as it is heated from 298 K to 313 K?
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