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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?
A compound's 13C NMR spectrum shows a resonance at 176 and 85 ppm. What possible structural subunit does the compound contain
what is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0
Important information about Galvanic cell, Consider a galvanic cell consisting of Sn wire immersed in a solution containing 10^-10 M Sn(NO3)subscript 2 and 1 M HNO3 and Ag wire immersed in 10^-2 M AgNO3 and 1 M HNO3.
What is the intact compound equation and the net ionic equation for the neutralization of aqueous hydrofluoric acid by aqueous calcium hudroxide?
what external pressures have moved mainstream medicine to accept alternative therapies? have any alternative therapies
suppose 2.8 moles of methane are allowed to react with 5 moles of oxygen? what is the limiting reagent?How many moles of CO2 can be made from this mixture? How many grams of CO2 would produce?
A solution of an unknown nonvolatile electrolyte was prepared by dissolving 0.250 g of a substance in 40 g of CCl4. The boiling point of the resultant solution was 0.357 degrees Celsius higher than that of pure solvent. Calculate the molar mass of..
which of the following alkyl halides reacts most rapidly via SN1 solvolysis reaction in hot methanol? A) 1-iodo-1-methylcyclohexane
In a solution of pure water, autoionization occurs producing conjugate acid-base pairs in solution.
25.2 mL of qater are placed in a graduated cylinder. A 22.6 g stone is dropped in, and the water level rises to 32.4 mL. Find the stone's density.
a mole of atoms ions molecules or anything else contains avogadros number 6.022 x 1023 of these units. a mole of
Calculate the equilibrium concentrations of IO3- and Cd2+. Assume volumes are additive, and the temperature remains constant
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