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Ammonia is produced industrially from the reaction of nitrogen and hydrogen. Write the balanced chemical equation for this reaction, and determine the largest mass of NH_3 that could be produced from the reaction of 105 g of N_2 and 15.0 g of H_2.
If the height of the candes in the container increases at the rate of 0.270 cm/s, at what rate (kilograms per minute) does the mass of the candies in the container increase?
The heat of fusion of sodium metal is 630 cal/mol. How much heat (in kilocalories) is required to melt 179 grams of sodium
the Center of Science and Industry (COSI) and saw and exhibit called shadow pictures. It is where you stand in front of this "screen-like board"
A solution of sodium chloride in water hasa vapor pressure of 20.9 Torr at 25 degrees celsius. What is the mole fraction of NaCl in this solution
a student was given 45 ml of ethanol. it has a density of o.789 gml. this amount of ethanol was placed into 969 ml of
Predict the major and minor products of the following reaction.
Use the valence bond thoery to determine whether the complex ion CoCl4^2- is a square planar or tetrahedral. measurements of its paramagnetism show that it has three unpaired electrons
A sample of S8 (g) is placed in a container at 1325 K at an initial pressure of 1.00 atm, where it decomposes to S2 (g) by the reaction, S8 (g) 4S2 (g), At equilibrium, the partial pressure of S8 (g) is 0.25 atm. The Kp at 1325K is
Which compound in each pair has a higher melting point. A) RbI or KI B) MgCl2 OR MgBr2
Find the pH of the equivalence points and the volume of 0.0372 M NaOH needed to reach it in titrations of 28.9 mL of 0.0850 M H2SO3
A 2.5 g sample of a gas fills a 5 liter container. If the pressure in the container is 1.2 atm at a temp of 27 C, what is the molecular weight of the gas in g/mol
Predict the order of elution for benzoic acid and methyl orange in normal phase column chromatography using polar SiO2 as the stationary phase. In other words, which compound should come off the column first? The structures of benzoic acid and met..
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