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Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following equation: Zn(s) + 2HCl(aq) ZnCl2(aq) + H2(g) The product gas, H2, is collected over water at a temperature of 25 C and a pressure of 755 mm Hg. If the wet H2 gas formed occupies a volume of 9.94 L, what is the number of mols of Zn reacted? The vapor pressure of water is 23.8 mm Hg at 25 oC.
61.0 ml of anbsp solution1.60 m is diluted to a volume of 208 ml. anbsp portion of that solution104-ml is diluted using
A sample of seawater consists of water, sodium ions, chloride ions, and several other dissolved salts. These ions and salts are evenly distributed throughout the water. Which term or terms could be used to describe this sample of seawater?
A standard mixture containing 2.00 ppm and 2.50 ppm gave a Fe / Mn signal ratio (quotient) of 1.05. A 5.00 mL unknown Fe solution was mixed with 1.00 mL solution containing 12.5 ppm Mn
Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: You are given 30.0 of aluminum and 35.0 of chlorine gas. Part A If you had excess chlorine, how many moles of of aluminum chloride could be produced from 30.0 ..
In a lab you need 1.0M, 0.1M, and 0.05M Cu2+. How could you make 50.0mL of each of these three solutions with only 10.0g of Cu(NO3)2 available
3H2 + N2 -> 2NH3. At 200 degrees C in a closed container, 1.00atm of nitrogen gas is mixed with 2.00atm of hydrogen gas. At equilibrium, the total partial pressure is 2.00atm.
write a 3 to 4 page apa-formatted paper in which you address the questions below. use at least three cited references
Calculate the activities of Ca2+ and F- in the solution of flourite (CaF2) in pure water at 25C without regard to possible hydrolysis.
carboxylic acid is burned in oxygen, producing 1.462 g of CO2 and 0.6019 g of H2O. Determine the empirical formula of the carboxylic acid.
What is the pH of a buffer solution that is 0.10M methylamine and 0.10Mmethylammonium salt?what is the pH if 12ml of 0.20Mhcl
The activation energy of a certain reaction is 32.3kJ/mol . At 20 degrees C, the rate constant is 0.0130s^-1. At what temperature would this reaction go twice as fast? The equation that is given is ln(K2/K1)=Ea/R((1/T1)-(1/T2)) a. what is R in thi..
What molarity of aqueous calcium chloride solution can be expected to show the same conductivity as 0.0050 M aluminum sulfate at 12,500 units.
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