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To create the same antifreeze protection as 3.00 gallons of ethylene glycol, determine the volume of propylene glycol in gallons.
The CCL3F and CCl2F2 have been linked to ozone depletion in the Antarctica. As of 1994 these gases were found in quantities of 261 and 509 parts per trillion by volume.
Determine the number of grams of solution and how many grams of H2SO4 are in 1.00L of concentrated acid? Describe the molarity of concentrated H2SO4?
The density of 40.00%urea solution is 1.1083 g/mL at some other temperature. Determine the molality and molarity of the solution at this temperature.
At a temperature of 15°C a bicycle tire is filled with air to a pressure of 70 Psi. Riding the bike on blacktop on a hot day enhances the temperature of the tire to 58°C.
A student collected hydrogen gas by displacing water at 26.0 Celsius in a buret. To equalize the pressure the buret could not be submerged deep enough in a water bath.
Calculate the half-life of a compound if 75 percent of a given sample of the compound decomposes in 60 minutes?
Determine the mass of a piece of magnesium which formed the 29.1ml of hydrogen gas which is collected over the water at pressure of 749 torr and at 22.5 Celsius when dissolved in excess hydrochloric
Determine the value of c, the distance among two successive planes in the HCP lattice (two "A" planes in the ABABA... sequence of close packed planes). Explain that c/a (where a is the distance amo
What is the ratio of the prorogated to the deprotonated form of the acid? Determine the ratio when an acid with a pKa of 8.0 is present in a solution with a pHof 6.0.
Calculate the density of the heated air in the balloon if a small hot-air balloon is filled with 1.01 x 10^6 L of air (d=1.20 g/L) and as air in the balloon is heated, it expands to1.10 x 10^6 L.
If a bottle is half-filled with a 50:50 (mole-to-mole) mixture of heptanes and octane at 25 degrees C than calculate the mole ratio of heptanes vapor to the octane vapor in the air space above the l
Determine the number grams of product will be obtained when the reaction gives a 53% yield If 0.275 moles of ferrous ammonium sulfate and an excess of all other reagents are utilized in a s
Sketch the process representation on a V-U plot and explain how much heat is required to raise the 200lbm of H2O from the saturated vapor at 40psia to 1,300 degrees Fahrenheit at the constant vol
A mixture of H2(g) and N2(g) reacts in a closed container to form the ammonia (NH3(g)). The reaction ceases before either reactant has been completely consumed.
The pH of a saturated solution of benzoic acid is 2.86 at 25 oC. Determine the solubility of benzoic acid when the grams of benzoic acid per 100 mL of water at 25 C and also given the Ka of benzoic
To kill the bacteria in the water the Sodium azide (NaN3) is added. Determine the concentration of all species in a 0.010 M solution of NaN3. The Ka value for hydrazoic acid (HN3) is 1.9 X 10-5.
Determine the number of kilograms of aluminum are formed in the 24.0 hours by the electrolysis of molten AlCl3 when the current is needed the 100.0 A
A long strip of it is torn off and measured to be 5.6 m long and an adding-machine tape has a width of 5.80 cm. Translate the 5.6 m into centimeters.
Determine the number of grams of CO2 (Mm = 44.0 g/mol) are formed in the combustion of 19.0 g of C8H18 (Mm = 114.2 g/mol)?
If the electron returns to the ground state, explain in which level was it before the photon was emitted where a hydrogen atom in an excited state emits a photon of frequency = 2.924 x 1015 s-1.
Determine the number of minutes does it take for the concentration of the reactant,[A], to drop to 6.25 % of the original concentration when a certain first order reaction has a rate constant of 5.
A solid having the sample of A 27.13-g is placed in a flask. The solid is insoluble in the Toluene, is added to the flask so that the complete volume of liquid and solid together is 50.0mL.
On the periodic table the atomic weights are said to be "relative weights." Then explain - relative to what? Assume the Helium atom was assigned an atomic mass of 1.0000 amu, Calculate the
In the water the enthalpy of solution of ozone (O3) is -17 kJ/mol, and its solubility at 0 degrees Celsius and 1.00 atm is 0.105 g per100 g water.