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Calculate the pH of a solution prepared by mixing 25.0 mL of 0.10 M HCl and 25.0 mL of 0.25 M CH3COONa.
When 83.6 joules of heat is added to 2 grams of water at 10 degrees Celsius, the temperature of the water increases to what value?
A 5.00 L flask at 279 K contains a mixture of He and O2 with a total pressure of 1.00 atm. If the mole fraction of O2 is 0.40, what is the mass fraction of O2?
How do you draw this structure for the molecular formula and how would you number and name it?
a solution of acidic potassium permanganate is added to a solution of iron (II) sulfate Write an unbalanced net ionic equation
A 2.48 L sample of He at 739 torr is mixed with 6.08 L of Ar at 325 torr both at 25 degrees C is placed in a 4.80 L container at 25 degrees C. What is the partial pressure in atm of He
The heat capacity of a system is defined as the ratio of the infinitesimal amount of heat absorbed to the corresponding increase in the temperature when some process is carried out. Show that the heat capacity at constant volume is C_V is equal to
How many liters of H2 gas, measured at 0.992 atm and 365 K, are required to synthesize 0.35 mol of CH3OH?
an unknown mass of each of the given substances as with the final temperature is recorded as indicated 1.pyrex glass
At a certain temperature, reaction has equilibrium constant (Kc) of 1.9 x10^19. Determine the equlibrium constant for the reaction based on this information at the same temperature.
For your unknown titration, indicate whether the pH at the equivalence point should be equal to 7.0, greater than 7.0, or less than 7.0. Explain your choice, including the appropriate balanced net ionic equation.
when 24.4 ml of 0.500m sulphuric acid h2so4 is combined to 24.4ml of 1.00m potassium hydroxide koh in a coffee cup
Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 8.0 x 10^-2 M NaOH.
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