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Decaborane, B10H14, was utilized as a fuel for rockets in the 1950's. It ignites instinctively with O2 according to the subsequent reaction:B10H14 + 11O2 ? 5B2O3 + 7H2O
If a rocket's fuel tanks contain 7.223E+5g of decaborane as well as 9.874E+4g of oxygen, explain which of the reactants is the limiting reagent? Enter the number corresponding to your choice- 1, 2, or 3.
1. Oxygen
2. Decaborane
3. Neither
Water and 8 mol/L potassium nitrate solution are mixed to produce 700mL of a solution with a concentration of 6.mol/L. What volumes of water and potasium nitrate are used.
If a reaction mixture initially contains 443 of and 391 of , what is the mole fraction of when equilibrium is reached.
A 10.00 mL sample of vinegar is titrated with 0.5062 M NaOH and 16.58 mL is needed to reach the equivalence point. What is the molarity of the vinegar
Isooctane is a standard for gasoline octane rating. A sample weighing .5992 g was found to contain .5040 g of carbon and .09515 g of hydrogen. Its molecular mass is 114. Write the empirical and molecular formulas of isooctane (arranging the symbol..
If the initial concentration of HD(g) is 8.433 mol/L, calculate the % of HD(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kc at -173.0 °C is 0.52. The initial concentration of the reaction pro..
The heat of vaporization of Freon, CCl2F2, is 17.2 kJ/mol at 25* C. What is the change of entropy for one mole of liquid Freon when it vaporizes at 25*C
Draw a representation of the 3-D structure of the anion, including only the bonding-pair electrons, and any sulfur lone-pair electrons. What is the orientation of the oxygen atoms with respect to each other around the S?S bond?
If you drop 25.0 g of warm iron nails (initial temp = 65.4C) into a beaker that contains 100.0 g water at 20.0 C what will the temperature be when the nails and water reached the same temperature
Determine the entropy change when 5.60 mol of HCl(l) boils at atmospheric pressure with the following information
After a quantity of NO2(g) is injected into the mixture, the total pressure jumps to 812 torr. Calculate the new partial pressures after equilibrium is re- established.
1.indicate the solubility of the following solutes in 100 g of watera.potassium chlorate at 90 degcb.potassium nitrate
What is the pH of the solution at the following points along the titration curve: 1) Before any titrant is added
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