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State the balanced molecular, complete ionic and net ionic equations for each of the following acid-base reactions
1)HC2H3O2(aq) +KOH(aq)
2)Ca(OH)2(aq) + HCl(aq)
Assuming the volumes of all gases in the reaction are measured at the same temperature and pressure, calculate the volume of water vapor obtainable by the explosive reaction of a mixture of 725 mL of hydrogen gas and 325 mL of oxygen gas.
As we have seen in the lab, potassium metal reacts explosively with water by producing hydrogen gas and leaving potassium hydroxide in solution. Explain what volume of hydrogen gas is produced when a 0.50 g piece of potassium is added to water at ..
When filled withan unknown gas at STP, the container mass is 37.062g. Calculate themolecular weight of the unknown gas, and then state its probableidentity.
a 27.7 ml sample of CO2 was collected over water at 25.0 degrees celcius and 1.00 atm.(the vapor pressure of water at 25.0 degrees celcius is 23.8 torr) What will the volume be at the same temperature and pressure after removing the water vapor?
At the unspecified temperature dinitrogentetraoxide partially decomposes according to the following equilibrium
Do you experimental data substantiate the rule of thumb regarding the effect on the reaction rate of a 10-degree increase in reaction temperature. Briefly explain
A NaCl solution contains 20.0% NaCl by mass and has a density of 1.15 g/mL. The molarity of the solution is: (hint: assume 1000. g of this solution)
Determine the wt./vol. % of Fluoride in toothpaste if the calculated molarity is 0.002491 M. The actual value is 0.15% so it should be somewhat close to this value. The density is 1.34 g/ml
Write a net ionic equation for the precipitation reaction, if any, that occurs when aqueous solutions of the following ionic compounds are mixed. Cu(Ch3COO)2 and Na3PO4.
Determine the value of Keq for Ca3(PO4)2 (Ksp=2.0*10-33) dissolving in acid solution, given that Ka2=6.17*10-8, Ka3=4.79*10-13 for H3PO4.
Small helium-neon lasers emit 3.50 mJ/s of light at 634 nm. How many photons does such a laser emit in one minute?
An open vessel containing (a) water, (b) benzene, (c) mercury stands in a laboratory measuring 6.0 m x 5.3 m x 3.2 m at 25 deg celsius. What mass of each substance will be found in the air if there is no ventilation
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