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What's the volume of hydrogen that can be produced during the reaction of 25 g of iron with excess water, at 100 °C and 150 kPa, taking into account the following equation?
Fe + H2O ? Fe3O4 + H2
Calculate mass of the dye per liter Kool Aid solution C in units of grams/L, i got a molecular weight of the dye as 496.42g/mol a concentration of the dye as 1.26x10^-14 mol/L and a mass of Kool Aid of 0.566g
For each of the following experimental or calculations errors, tell of the calculated value of R, writte if would be too high, too low or unchanged.
Calculate the percent ionization of hydrazoic acid (HN3) in solutions of each of the following concentrations
Write the formulas of the conjugate base for each of the following acids: A. HCO3- B. CH3--NH3+ C. HPO4^2- D. HNO4- E. HClO2
Calculate the percent of a strontium sample left after 100 years. The half-life of strontium-90 is 28.1 years.
400 M formic acid (HCOOH) solution freezes at -0.758 degrees C. Calculate the Ka of the acid at that temperature. (hint: assume that molarity is equal to molality. Carry out your calculations to three sig figs and round off to two for Ka).
The initial concentrations of the three gases are 0.550 M H2S, .550 M H2, and .275 M S2. Determine the equilibrium concentrations of the gases.
What is the mass percent of MgO in the mixture? Assume that only the MgO reacts with CO2.
In a chemical cold pack, two substances are kept separate by a divider. When the divider is broken, the substances mix and absorb heat from the surroundings. The chemical cold pack feels cold.
For each of the following methods for analyzing kinetic data, describe one advantage and disadvantage for each method: a. Assumption of pre-equilibrium conditions b. Using the integrated rate laws to fit data
Can an alkyl shift to cause a ring expansion ever start a SN1/E1 process even before carbocation formation
What is the theoretical yield (in mol) of carbon monoxide when 2.62 mol oxygen reacts with 2.08 mol of ethanol (CH3CH2OH) to produce carbon monoxide and water
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