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Define a complex ion, [ML6]2+, is blue in solution. Suppose if the same metal forms a complex with another ligand, Q that creates a stronger crystal field. Explain what color(s) could [MQ6]2+ be?
Red
Orange
Yellow
Green
Blue
Violet
None of these
How much energy is evolved by 44g of copper (spht= .38 J/gC) if it's temp falls from 333 K to 280K
The managing director of a well-known company on Wall Street thrives on a diet of fruit jam, bread, pasta, and coffee. She exercises intermittently.
a hot air balloon has a volume of 4.00 x 105 l at 30 deg. c and pressure of 748 mmhg. if the avg molar mass of air is
Identify the major type of attractive force between particles of each of the following substances: a) HCl; b) MgF2; c) PBr3; d) Br2; e) NH3.
A. Use the dipole moments of HF and HCl ( HF= 1.08 D, HCl = 1.82) together with the percent ionic character of each bond ( HF= 20% ionic, HCl= 45% ionic) to estimate the bond length in each molecule.
What is the pressure in the cylinder if the temperature is increased to 45 degrees Celsius and the piston is raised so that the volume occupied by the gas is doubled.
1. Write an equation describing the hydrolysis of one ester group in tannins by CaCO3. 2. How would longer roasting time of green coffee beans effect its caffeine content
A 35.0ml sample gas is enclosed is in a gas tight syringe at 22 degress celcius. If the syringe is immersed in an ice bath a 0 degress celcius, what is the new gas volume.
Is it possible for an atom to absorb a photon of red light and reemit a photon of violet light
calculate the mole fraction of ethanol ch3ch2oh molar mass 46.0 gmol in a solution that contains 46 g of ethanol and
The standard enthalpy of formation of K+(aq) is -252.14 kJ/mol. How much heat is evolved when 0.1047 g of K(s) reacts with excess HCl?
Calculate the mass of emitted into the atmosphere upon accelerating the from 0.0 to 67.0 . Assume that the required energy comes from the combustion of octane with efficiency.
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