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What happened when CaCO3 was combined with hydrochloric acid? was a chemical reaction obvious here ? what about NaOH added to HCl? Was a reaction obvious in this case? Why indicators are important to tell if an acid-base reaction has occurred.
Determine the free energy change associated with the above reaction (you might find it easier to first consider the movement of the two components of the system separately)
What is the equilibrium constant for the following reaction CO(g) + 2 H2(g) ↔ CH3OH(l); [CO] = 0.788 M and [H2] = 0.872 M?
A 4.40 g nugget of pure gold absorbed 295 J of heat. The initial temperature was 21.0°C. What was the final temperature?
Isopropyl alcohol is mixed with water to produce a 31.0% (v/v) alcohol solution. How many milliliters of each component are present
A solution is prepared by dissolving 159 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
Explain why the bond dissociation energy for the C-C sigma bond in propane is lower than the BDE for the C-C bond in propene.
A solution of sodium hydroxide is prepared by mixing 2.00g of NaOH with 10.0g of water. The percent, by mass of NaOH is what?
When aqueous solutions of lead nitrate and sodium iodide are mixed, a yellow precipitate of lead iodide is formed. Write the molecular, complete ionic
Calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor produced during steam distillation.
If the volume of an unknown liquid is measured and found to be 6.510 L, what is the volume of the unknown liquid in milliliters?
The DNA sequence below is from the interior of the coding strand sequence for West Nile Virus RNA polymerase.
A solution is prepared by mixing 250 mL of 1.00 M CH3COOH with 500 mL of 1.00 M NaCH3COO.
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