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A 12.0 gas cylinder has been filled with 5.40 moles of gas. You measure the pressure to be 5.00 atm. What is the temperature inside the tank? Express your answer numerically in degrees Celsius.
How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 14C? [hint: ignore any effects by the calorimeter]
Given the following two solutions: 0.200 M HC2H3O2(aq) with pKa = 4.76 0.200M NaOH(aq) A mixture is made using 50.0 mL of the HC2H3O2 and 25.0 mL of the NaOH. What is its pH?
Determine which metal will reach the lowest temperature If the same amount of heat is added to both the metals?
sample of unknown HCL solution reacts completely with Na2CO3 to form 15.1g CO2, What was the concentration of the HCL solution?
electrons having this speed would need to be treated as waves in atoms because the wavelength is on the order of the size of atoms.
The equilibrium concentration of HA will be less than the stoichiometric concentration because some or all of HA ionizes.
Octane has a density of 0.692g/mL at 20 C. How many grams of O2 are required to burn 1.00 gal of C8H18?
Determine the partial pressure and the total pressure using Dalton's law of partial pressures - Determine the total pressure of the mixture.
When 3.00 g KNO3 are dissolved in 50 g glycerol, the freezing point changes from 17.8°C to 13.6°C. What is the freezing point depression constant (Kf ) for glycerol.
what is the mass of pentane that vaporizes? density is .626g/mL and pure vapor pressur eis 511 at 25 degree celcius. suppuse hexane and pentane each 75 ml is mixed in previoulsy evacuated 200 ml at 25 degree celcius.
Determine the limiting reactant and also calculate how much of the gas is produced?
If 25.00 mL of 0.687 M Fe(NO3)2 are added to a flask containing 0.289 g of aluminum metal, what compounds will be present in the flask once the reaction is complete? (Ignore water, etc.)
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