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Question:
What is recorded as the final temperature (in oC) on a constant pressure calorimeter if 12.404 g of potassium hydroxide is dissolved in 28.663 mL of water originally at 22.738oC?
A 0.200 M solution of a weak monoprotic acid HA is found to have a pH of 3.00 at room temp. What is the ionizaiton constant of this acid?
What is the Gibbs energy difference across the membrane at 37°C. The difference in concentration must be sustained by coupling to reactions that have at least that difference of Gibbs energy
Question- A 0.140-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. 1) What is the concentration of Ni2 ions at equilibrium? Assume the formation constant* of Ni(NH3)62 is 5.5 × 108.
NaOH solution were necessary to reach the equivalence point, what is the concentration of the NaOH solution? (Make sure to report the correct number of significant figures?
considering the given equationcuscn kio3 hcl rarr cuso4 kcl hcn icl h2o balance the equation using the smallest
Problem- Calculate the equilibrium concentrations of H3C6H5O7, H2C6H5O7-,HC6H5O7 2-, C6H5O7 3-, in a .5 M H3C6H5O7 solution at 25 degrees celcius.
What mass of CaCl2, when dissolved in 100.00g of water, gives an expected freezing point of -5.0 degrees celcius; CaCl2 is ionic?
Dissolved carbon dioxide from the atmosphere will influence the determination of the equivalence point. Would you expect dissolved CO2 to cause the volume of NaOH necessary to reach the equivalence point to increase or decrease. Explain.
solution of sodium chloride contains 5.2 g nacl in 900 grams of water. what is the concentration of the solution in
Calculate the molarity of 500.0 cm3 of solution containing 18.5 g of calcium nitrate Ca(NO3)2
Which of these is true about the following reaction?
In the malachite green method for measuring phosphorus concentration, what it the purpose of each of the following reagents? Include in your answer what would happen if you didn't use the reagent.
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