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A) At what concentration does hydrocyanic acid (ka= 4.9 x 10^-10) exhibit 0.05 percent ionization? Assume the temperature to be 25*C
B) At what concentration does hydrocyanic acid exhibit 0.10 percent ionization? Assume the temperature to be 25*C
C) At what concentration does hydrocyanic acid exhibit 0.15 percent ionication? Assume the temperature to be 25*C
Water is composed of 11.2% hydrogen and 88.8% oxygen. What mass of water contains 16.0g of hydrogen?
A 1.994g sample of ethanol, CH3CH2OH is combusted in a bomb calorimeter. The temperature of the calorimeter increases by 10.91. If the heat capacity of the bomb is 615.5j/k and it contains 1.150kg of water, what is the enthalpy chnge per mol of et..
Oxalic acid, H2C2O4 has acid dissociation constants Ka1 = 5.9 x 102 and Ka2 = 6.4 x 105. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2SO3.
Determine the number of representative particles in each substance.
Determine at what temperature must a balloon be heated to have six Litres volume consider that the balloon was at the temperature of 25 degree Celsius and volume of two litres initially?
what are some difference or similarity in the type of inhibition caused by heat, acid or base and heavy metal ions on enzyme activity.
Calculate rate constant for 1. level reaction where 81% of the matters have already react after 27 seconds.
Imagine that you have a 5.50 gas tank and a 4.00 gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
25 g of a certain metal is heated in boiling water and then poured into 90 mL of water initially at 22.0oC. After the water has resumed a constant temperature.
Write the rate law for the clock reaction (equation 1) using variable for exponents.
The heat of combustion of hexane is 995.0 kcal/mol. How much energy is released during the complete combustion of 453 grams of hexane ?
The free energy change Delta G at 2400 K is equal to 1.22*10^5 J/mol. Calculate the equilibrium constant at 2400 K
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