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A soluution prepared by dissolving 682 mg of a sugar (a molecular compound and a nonelectrolyte) in 1.00g of water froze at -3.72 degrees C. What is the molar mass of this sugar? The value of Kf is 1.86 degrees C/m.
Calculate the percent of volume that is actually occupied by spheres in a face-centered cubic lattice of identical spheres. You can do this by first relating the radius of a sphere,r
Sulfhydryl groups have the ability to react with the alkylating reagent N-ethylmaleimide (NEM) in chemical modification experiments. When NEM is added to a purified solution of creatine kinase
How Much Chlorine Must be Added to a Swimming Pool? A solution used to chlorinate a home swimming pool contains 7% chlorine by mass. An ideal chlorine level for the pool is one part per million (think of 1 ppm as being 1 g chlorine per million gra..
the ostwald process converts ammonia (NH3) to nitric oxide (NO) by reaction with oxygen in the presence of a catalyst at high temperatures.
predict whether an aqueous solution of ammonium bicarbonate would be acidic, basic or netural. explain your answer, and support it with real data.
Find the partial pressure and concentration of Nitrogen, Oxygen, and Carbon dioxide.
The percent by mass of bicarbonate (HCO3-) in a certain Alka-Seltzer product is 32.5 %. Calculate the volume of CO2 generated at 37ºC and 1.00 atm when a person ingests a 3.29g tablet.
One liter of a buffer solution is prepared by dissolving 0.115 mol of NaNO2 and 0.070 mol of HCl in water. What is the pH of this solution? If the solution is diluted two fold with water, what is the pH?
If the pressure of gaseious chloroform in a flask is 195 mm Hg at 25 degrees celsius and its density is 1.25 g/l, what is the molar mass of chloroform?
How many grams of zinc are there in 22.7 g of ZnCl2?
If the average speed of an oxygen molecule is 4.05multiplied by 104 cm/s at 25°C, what is the average speed of a CO2 molecule at the same temperature?
Explanation of Ratios, In an unsymmetrical alkene, the boron atom adds predominantly to the least substituted carbon atom. For example, 2-methyl-2-butene gives the products shown below.
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