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What term describes a solution in which the solute concentration exceeds its equilibrium concentration under the prevailing conditions?
How many moles of iron atoms are in 2.28 mol of Fe2O3?
Calculate the empirical and molecular formulas of a compound, C?H?Cr?, given the following: 1) The compund contains 73.94% C and 8.22% H. The rest is Cr. 2) At 25 degrees celius, the osmotic pressure of a solution containing 5.00 mg of the unknown..
Car air bags operate by the explosive reaction of NaN3: 2NaN ( ) 2Na( ) 3N ( ) 3 2 s s + g
The freezing point of pure benzene is 5.50 °C and the freezing point depression constant of benzene, Kfp, is -5.12 °C/m.
how many joules of heat are needed to raise the temperature of 591 grams of water from 25C to 55C?
what are the pH and the change in pH after the addition of 0.054 mol hydrochloric acid to the buffer solution?
Which reaction below could not be used to create C-C bonds?
The ionization energy of tin is 708.0 kJ/mol. Calculate the maximum wavelength of light that will ionize tin.
Compute pH and [OH-] for each of the following solutions. (a) 8.1×10-2M Na2CO3, (b) 0.15M NaCN
What is the boiling point of a solution that contains 6 moles of KBr in 1000 g of water? (K = 0.512 C/m)
If 16.0 mL of .150 M HCL is needed to neutralize all the NH3 from a 2.25-g sample of organic material, calculate the mass percentage of nitrogen in the sample.
During photosynthesis chlorophyll a absorbs light of 440 nm and emits light of 670 nm.
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