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A 72.65-g bar of iron was heated to 99.7 degrees C and then dropped into 35.0 mL of water at 20.0 degrees C. The temp of the water increased to a maximum of 33.2 degrees C. Calculate the specific heat of iron. Assume that the density of the water is 1.00 g/mL.
what is the solubility of silver chloride in gl ksp1.6x1010 in a 6.5x10-3m silver nitrate
The isoelectric point (pI) of a peptide is the pH at which the peptide does not migrate in an electric field. Since the peptide is zwitterionic, there are the same number of positive charges as negative charges on the peptide population.
A wave with a wavelength of 40.0 meters is located in deep water (1000 meters deep) and is travelling toward the shore. Explain what is its speed as long as it stays in deep water
You have a 48.9 g sample of water at the temperature of -60.0 degrees celcius. How much energy is required to: a) heat the ice to 0 degrees celcius
If you had a mixture of NaCl and Na2CO3, would the action of concentrated H2SO4 enable you to decide whether both Chloride ions and carbonate ions were present
"Alpha" iron metal crystallizes with the body-centered cubic unit cell. If the unit cell is 287 pm on each side, what is the density of alpha iron?
A bicycle tire is filled with air to a pressure of 75 psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire
What are the precipitation reaction with balanced molecular, total ionic and net ionic equations for na2
at 25 degrees C a saturated solution of a metal hydroxide has a pH of 9. What is the value of the solubility-product constant (Ksp) of M(OH)2 at 25 degrees C?
you require a buffer with ph of 4.50. you have 1.00l of a solution of 1.80m acetic acid. how many grams of solid sodium
What are the products formed when nitroglycerin undergoes hydrolysis?
Problem- Calculate Delta S of the universe and Delta G of the system for the change in state that occurs when 2mol of an ideal gas at 300K occupying a volume of 24.6L expands isothermally against an opposing pressure of 1atm to reach equilibrium.
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