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An ionic compound contains only a metal, M, and bromine. If analysis indicates that a 3.61 g sample of the compound contains 2.44 g of M, what mass of Br in g is contained in 344 g of the mineral?
Calculate the energy in joules and calories required to heat 24.0g water from 20.0C to 27.7C
Starting with pure NaCl and water, describe how you would prepare 25.00 mL of a NaCl solution? Assume you know how much NaCl you need to weigh on the balance.
A 3.5 L container is filled with gas at 1.00 atm. A piston then compresses the gas to 0.250 L. What is the new pressure?
at room temperature more of the collisions have sufficient energy to produce a reaction. the piece of zinc needs to be bigger at 4 deg c.
The solubility of nitrogen gas in water at 0 degree celcius and 1.0 atm is 23.54 mL per liter of the solution. (a) Calculate the Henry Law constant at 0 degree celcius
Write a balanced equation showing one mole of this liquid compound combusting inO2 (gas) to produce CO2 (gas) and H2O (liq).
What is the vapor pressure of a aqueous solution containing 10 %(by weight) ethylene glycol (62 g/mol) at 25°C. PH2O = 24.3 torr at 25°C.
A star is estimated to have a mass of 1 1036 kg. Assuming it to be a sphere of average radius 7.0 105 km, calculate the average density of the star in units of grams per cubic centimeter.
A sample of argon gas occupies a volume of 950 mL at 25.0°C. What volume will the gas occupy at 50.0°C if the pressure remains constant?
At high temperatures phosgene (COCl2) decomposes to give carbon monoxide CO and Cl2. In a typical experiment, 0.631 g of COCl2 is injected into a flask of volume 472 cc.
two solutions, a 0.1% (m/v) albumin solution and a 2% (m/v) albumin solution, are seperated by a semipermeable membrane. (Albumin is a colloid)
Compare the release of S02 in the scrubbed flue gas (determined in Problem 14.6) with the EP A limit of no more than 520 nanograms S02 per joule of heat input to the boiler.
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