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The smallest atoms can themselves exhibit quantum mechanical behavior. Calculate the de Broglie wavelength (in pm) of a hydrogen atom traveling 430 m/s.
Write a molecular equation for the precipitation reaction (if any) that occurs when the following solution are mixed. How do you convert these over and please show steps.
For a particular redox reaction Cr is oxidized to CrO42- and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution.
A 16 ounce specialty coffee drink contains 216 mg caffeine. If all the caffeine is extracted and dissolved in an equal amount of water, what is the pH of the solution. What is the percent ionization.
rewrite the equation so heat of reaction (delta H) equals deltaHf for 4PCl3 (g) yields p4(s) + 6Cl2 (g) Values for delta HF in Kj/mol are:
What volume of decinormal dichromate solution will be reduced by 1 g of tin ? At. wt. of Sn = 118.7.
What is the concentration of each of the following. 15.0 ml of 0.400N HCL diluted to 300ml volume (0.0200N)
If the emitted green light corresponds to an electron dropping from that excited state back down to the ground state, what is the energy spacing (in aJ) between the highest occupied and lowest unoccupied orbitals. The element used is Thallium.
Which of the following statements is/are correct. a) Water is an example of non-polar solvent. b) Any solution always conatins an electrolyte c) NONE d) A solute is always molecules dissolved in water and cannot be ions.
The tmeperature s increased to 1200 K, so that all CaC204 decomposes to form CaO according to the reactions, The density of the gas mixture at 1200K was 0.70501 g/L. What was the mass of the calcium oxalate initially placed in the vessl?
The repeating galacturonic acid monomers are connected by a-(1->4) bonds. Below draw 4 repeating monomer units making up a pectin molecule
Calculate the pH of this buffer if it is .10 M HC2H3O2 and .10 M C2H3O2-. The Ka for CH3COOH is 1.8x10^-5.
An ideal gas is compressed isothermally from 2.0 atm and 2.0 L to 4.0 atm and 1.0 L. Calculate the values of delta U and delta H is the process is carried out a) reversibly and b) irreversibly
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