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An aqueous solution of a nonelectrolyte boils at 100.32C. What is its expected freezing point?
a sample of hydrogen gas initially at 29C and 7.0 L iscooled until its final volume is 2.9 L. What is its final temperature
what is ture when equal masses of a and b are reacted?
Identify the species that is oxidized and the species that is reduced in each reaction.Write out two half reaction to show how many electrons are gained or lost by each species.
Explain why the in phase vibration is located at a higher frequence than the out of phase stretch in the case of acetylene.
Complete and balance the reaction: H3PO4(aq) + Ba(OH)2 ---> b) Name the products c) Write the net ionic equation
Using your average value for Kc and the concentrations provided for the reactants, determine the absorbance expected when 16.00mL of Fe 3+ (aq) is reacted with 10.00 mL of SCN (aq).
Calculate the molality and molarity of an NH3 solution made up of 37.0 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
What is the change in internal energy (in J) of a system that absorbs 0.751 kJ of heat from its surroundings and has 0.314 kcal of work done on it
write the net ionic equations for the precipitation reaction or reactions that occur. b) what are the spectator ions in the solution?
The C^14 decay rate for the sample of glue was found to be 5.60d/min/g. What is the approximate age of the glue. Disintegration of C^14 is a first order process with a rate constant 1.209*10^-4 year^-1.
In a coordination compound, which ion would you expect to have a higher coordination number with a bidentate nitrate group (NO3-), Co3+ or Ir3+? Why?
An unknown element forms a yellow ion, XO . It forms a precipitate with silver ions. If 48.0 mL of a 0.250 mol/L solution of silver ions is added to a solution of the unknown ion, 1.856g of a red-brown precipitate are formed. Determine the iden..
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