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Calculate the wavelength, in nanometers, of the radiation released when an electron moves from n= 6 to n= 2.?
What is the molality of a 25.5% aqueous solution of phosphoric acid, H3PO4 (M = 97.99 g/mol)
sodium carbonate na2co3 can be produced by heating sodium bicarbonate nahco3. a student heats 5.128 g sodium
Hydrogen bonds a) play an important role in the solvent properties of water b) are not involved in protein structure c) play a role in the properties of DNA, but not of RNA d) give water a lower boiling point than expected 44
Based on the two balanced reaction equations, find the ?G for the complete oxidation of one ethanol to two CO2 molecules.
Calculate the final temperature that results when a 13.0 -g sample of water at 23.1C absorbs 870 J of heat.
what mass of silver chloride can be prepared by the reaction of 130.0 ml of 0.15 m silver nitrate with 190.0 ml of 0.30
What is the heat of vaporization of a if 215mol of the liquid required 2040J of energy to vaporize at its boiling point
what is the remaining Ag+ ion concentration and is precipitation complete? The solubility product constant of AgBr is 5.0 × 10-13.
What is the silver ion concentration for a saturated solution of Ag2CO3 if the Ksp for Ag2CO3 is 8.4 x 10^-12
The addition of 6 g of salt to a sample of pure water causes its freezing point to be reduced from 0°C to -1.5°C. After an additional amount of salt is dissolved in the solution
where C is a constant.The following table gives the equilibrium constant (Kp) at various temperatures for the reaction of nitrogen monoxide with oxygen gas that produces nitrogen dioxide
Explain how to prepare 500.0 mL of an 8.00% v/v methyl alcohol solution. * measure out 40.0 mL of methyl alcohol * measure out 4.0 mL of methyl alcohol
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