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6 M H2SO4 is carelessly substituted for 6 M HCL. Will more or fewer drops of 6 M H2SO4 be required for the litmus to change color?
In a particular experiment, 2.25 g of NH3 and 3.75 g of O2 are placed in a container and allowed to react. How many grams of NO will have been formed when all of the limiting reactant has been consumed?
Identify the charged groups in the peptide shown below at pH=1 and at pH=7. What is the net charge of this peptide at these two pH values? val-met-ser-Ile-phe-arg-cys-tyr-leu
If the temperature is 22 degrees C, the total pressure in the tank is 3.50 atm, and the density of the gas in the tank is 1.17 g/L, what is the partial pressure of H2?
The average concentration of calcium ion in seawater is 412 mg of calcium ion per kg of seawater. What is the molarity of the calcium ion if the density of the seawater is 1.025 g/mL?
Even with a perfect shima and a higher field of instrument, the spectrum of 2-methyl-2-hexanol is difficult to interpret. Give two different reasons for this difficulty
A carbonated beverage is made by saturating water with carbon dioxide at 0 C and a pressure of 3.0 atm. The bottle is then opened at room temperature (25 C), and comes to equilibrium with air in the room containing carbon dioxide CO2(PCO2=3.4x10?4..
The boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2°C. What is the molar mass of the solute?
Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy level n = 7 to the level n = 2.
We have a refrigeration unit that works at a pressure of 0.1MPain the evaporator and 1 MPa in the condenser. The refrigeration unit uses a compressor with an efficiency of 90%
A piece of magnesium with a mass of .2 grams is added to 50mL of 1 molarity of HCL at a temperature of 28 degrees celcius. When the magnesium disolves the solution reache a temperature 46 degrees celcius.
A first order decomposition reaction has a half-life of 60yr. What percentage of the original amount is left after 164years
How many grams of sodium bromide must be added to 309 grams of water in order to prepare a 0.108 molal sodium bromide solution?
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