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Consider a gas mixture in a 1.50 dm3 flask at 22.0 C for each of the following mixtures, calculate the partial pressure of each gas, the total pressure and the composition of the mixture in mol percent:
a) 3.06 g H2 and 2.98 g O2
To calculate the concentration of protein is it 10/990 or 10/1000? And does the original concentration of solution even matter when calculating the solution concentration?
Find out What mass of the NaHCO3 reacts with the vitamin C When the tablet dissolves in H2O, it "fizzes" because the reason for this is the CHO3 reacts with the citric acid(C6H8O7 a weak organic acid) and the vitamin C?
A gas is heated from 269 K to 283 K while its volume is increased from 21.5 L to 37.0 L by moving a large piston within a cylinder. If the original pressure was 1.10 atm, what would be the final pressure?
How much heat is evolved when 265 g of ammonia gas condenses to a liquid at its boiling point
Calculate the mass percent of a solution that is prepared by adding 32.2 g of NaOH to 262 g of H2O.
The Ka for lactic acid is 1.4x10^-4. What is the pH of this buffer after .10 mol of solid NaOH has been added?
What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 5.60 * 10^2 cal of work done on it?
Silver has an average atomic mass of 107.87 u. If 48.18% of Ag exists as Ag-109 (108.9047 u), what is the identity and the atomic mass of the other isotope?
What is the molality of a solution that is composed of 265 g of acetone ((CH3)2CO) dissolved in 177 g of water.
Identifying dipolar ions, There is a question in my textbook that reads P-amino acid is not a dipolar ion, whereas glycine (aminoacetic acid) is not a dipolar ion- how do you account for this?
the activation energy for the decompostion of HI to H2 and I2 is 186 kJ/mol. The rate constant at 555 K is 3.2 x 10^-7 L/mol*s.
Determine the boiling point of the solution If 11.9 grams of a nonelectrolyte with molar mass = 30.5 g/mol are combined with 200.0 grams of the solvent,?
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