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What mass of cesium bromide must be added to .500 L of water (d =1.00g/mL) to produce a 0.687 m solution? What are the mole fraction and the mass percent of CsBr?
Argon gas is 10 times denser than helium gas at the same temperature and pressure. Which gas is predicted to effuse faster? How much faster? Please tell me which gas is predicted to effuse faster and why
why do firefighters recommend the use of a deluging volume of water when extinguishing an oxidizer-supported fire? what
Calculate the bond order in the following species. Predict which of the two species in the following pairs has the higher vibrational frequency:
A galvanic cell is produced as follows: Left half-cell has a Pt wire dipping into a beaker containing an equimolar mixture of Cr+2 and Cr+3 . [Cr3+ + e-??Cr+2 E°-= -0.42 V] Right hand cell has a Tl rod immersed in 1.00 M TlClO4.
You can heat it with a charcoal fire. The heat of combustion of graphite (MW = 12 g/mol) is -393 kJ mol-1. How many grams of charcoal will have to burn to supply the heat
why does ch3-ch2-o-h have a higher boiling point than ch3-o-ch3 even though they have the same molar
What is the nucleus with which an alpha particle can react to produce Lanthanum-133 plus four neutrons
a 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. the solution freezes at -1.23degc.
What is the wavelength (in nm) of the line in the spectrum of the hydrogen atom that arises from the transition of the electron from the orbital with n =3 to the orbital
Gold has a face-centered cubic arrangement with a unit cell edge length of 4.08 Angstrom. How many moles of gold fit in a sheet with a length of 51.6 nm, a width of 24.3 nm, and a thickness of 16.7 nm?
a stock solution of nacl is made taking 150.2g in enough water to make 200.0ml. a 10.00 ml sample of this stock
If 112 grams of calcium oxide were mixed with 224 grams of ammonium chloride, what maximum mass of ammonia could be produced?
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