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A balloon is filled with hydrogen gas and produces the following chemical reaction between iron and sulfuric acid: Fe(s) + H2SO4(aq) --> FeSO4 (aq) + H2(g). The total mass that can be lifted by a balloon is equal to the difference between the mass of gas in the balloon and the mass of air displaced by the balloon. How much mass could be lifted by the balloon stated above? What if the same balloon was filled with helium instead?
The equation for the Beers Law- A= -log10 I/Io. Tell what each variable represents.
Propose a detailed mechanism for the acid - catalyzed Fisher esterification of propanoic acid
Calculate the lattice energy (kJ/mol) of the hypothetical ionic compound MX2 from the information given below. IE1+ IE2 (M) = 1,487 kJ/mol M(s)
Calculate the pH of a 0.50 M aqueous solution of NH3. The Kb for NH3 is 1.8 x 10-5.
What mass of silver bromide will form when 25.00 mL of a 0.0675 M MgBr2 solution is combined with 30.00 mL of 0.100M AgNO3
A gas mixture containing oxygen, nitrogen and neon exerts a total pressure of 1.20 atm. If helium added to the mixture increases the pressure to 1.50 atm, what is the partial pressure (atm) of helium
Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Au3+(aq) + 3Ag(s) -----> Au(s) + 3Ag+(aq)c
A student measures the volume of water delivered by a 1 mL volumetric pipette several times and records measurements of 1.00, 0.97, 1.03, 1.01 and 1.03 mL. What is the average of the five measurements. Report your answer to 5 significant figures a..
Napthalene has a log Kow of 3.33. Estimate its soil-water partition coefficient normalized to organic carbon.
The bond energies are: C H 416 kJ/mol; C C 356 kJ/mol; C C 598 kJ/mol; O O 498 kJ/mol; C O 803 kJ/mol; H O 467 kJ/mol.determine the heat of combustion of ethylene ?
The air track carts in the figure are sliding to the right at 1.0 meter per second. Find the speed of the carts.
The half life for the radioactive decay of C-14 is 5730 years and is independent of the initial concentration. How long does it take for 25% of the c-14 atoms in a sample of C-14 to decay?
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