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Write and balance the eguation for a neutralization of sulfuric acid of unknown concentration by sodium hydroxide. Calculate the molarity of an unknown sulfuric acid solution of a 25.0 mL sample of the acid solution consumes 27.2 of 0.138 M NaOH solution in titration
positron x and positron y are each traveling at the same speed. how does the de broglie wavelength of the two positrons
How many mL of 0.250 M NaOH are needed to completely saponify 240. g of of glyceryl trioleate (triolein)?
Argon gas is 10 times denser than helium gas at the same temperature and pressure. Which gas is predicted to effuse faster? How much faster? Please tell me which gas is predicted to effuse faster and why
Formic acid (HCOOH) is secreted by ants. Calculate [H3O+] for a 7.80E-3 M aqueous solution of formic acid (Ka = 1.80E-4).
A stream of air (21% O2 m, the rest N2) flowing at a rate of 10.0 kg/h is to be mixed with a stream of CO2 inside a mixer. The CO2 enters the mixer at a rate of 20.0 m/h at 150 ?C and 1.5 bar. What is the mole percent of CO2 in the product stream
The standard free energy of activation of a reaction A is 88.3 kJ mol-1 (21.1 kcal mol-1) at 298 K. Reaction B is one hundred million times faster than reaction A at the same temperature.
The item itself serves as the cathode, at which the Au^3+ ions are reduced to Au(s). A piece of solid gold is used as the anode and is also connected to the power source, thus completing the circuit.
What is the electronic geometry of the oxygen atom, O3 ? Answer a. tetrahedral b. triangular planar c. linear d. T-shaped e. angular
1.What is the pressure in a 23.0L cylinder filled with 0.740mol of nitrogen gas at a temperature of 325K. answer using atm 2. What is the temperature of 0.460mol of gas at a pressure of 1.5atm and a volume of 12.8L
A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.
Consider the following equilibrium 2SO2 + O2 yields 2SO3 The equilibrium cannot be established when is/are placed in a 1.0L container
How many grams of NH4Cl must be added to 424 mL of a 0.69 M solution of NH3 to prepare a pH = 9.00 buffer.
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