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Decaborane, B10H14, was used as a fuel for rockets in the 1950's . It ignites spontaneously with O2 according to the following reaction:B10H14 + 11O2 ? 5B2O3 + 7H2OIf a rocket's fuel tanks contain 6.610E+5g of decaborane and 4.752E+5g of oxygen,
What mass of the other reactant is left over after the limiting reagent in the above mixture has been completely consumed?
If the total mass of both components in a decaborane/oxygen rocket must be 5.319E+5g, what mass of liquid oxygen should be used?
Put the following acids in the order of increasing acidity and please explain reasoning CCl3COOH, CH3COOH, CF3COOH
If every tablet in the problem abouveweights 650 mg. How many kilograms of excipient (lactose/talcum powder/filler) are needed to complete the whole batch?
Calculate ?Ssys (in Joules) when 20.0 moles of oxygen gas undergo an isothermal reversible expansion from 30.0 L to 80.0 L.
A solution is made by dissolving 0.0350 mol of HF in enough water to make 1.00L of solution. At 24°C, the osmotic pressure of the solution is .975 atm.
A small cube of lithium (density = 0.535 g cm-3) measuring 1.00 mm on each edge is added to 0.500 L of water. The following reaction occurs- 2 Li(s) + 2 H2O(l) ? 2 LiOH(aq) + H2(g)
A 1 L flask is filled with 1.45 g of argon at 25 C}. A sample of ethane vapor is added to the same flask until the total pressure is 1.25 atm.what is the partial pressure of argon in the flask?
Calculate DeltaHrxn for the following reaction: CH4(g) + 2Cl2 (g) --- CH2Cl2(g) + 2HCl(g) Use the following reactions and given delta H's
the specific heat of ethylene glycol is 2.42 J/g-K. How many J of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1 C to 40.5 C ?
Calcule the platinum electrode potential (vs. NHE), immersed in solution containing 0.50 M Br2 KBrO3 0.20 M at pH = 2.5
A gas is heated from 268 K to 290 K while its volume is increased from 25.0 L to 37.0 L by moving a large piston within a cylinder. If the original pressure was 0.90 atm, what would be the final pressure?
If the copper is drawn into wire whose diameter is 7.50 , how many feet of copper can be obtained from the ingot? The density of copper is 8.94
Calculate the heat release in KJ/g of the compound reacted w/ oxygen. The standard enthalpy of formation of C6H6 is 49.04 KJ/mol.
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