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Explain the reactions.
1.
a) Explain the results in which 1.0M NaOH was added to benzoic acid (soluble or not). Write the equation that supports your answer.
b)What happened when 6.0M HCl was added to the contents of the tube in 7a above? write the equation to supports your answer.
2) Aspirin is soluble in NaOH. Write the equation that supports this statement.
How many moles of NaOH must be added to 0.550 L of 0.191 mol/L HC3H5O2(aq) to obtain a solution with pH=4.7. Assume the temperature is 25oC. (For HC3H5O2, pKa=4.89 at 25oC).
A 3.00 g sample of a salt dissolves in 9.10 g of water to give a saturated solution at 25°C. What is the solubility (in g salt/100 g of H2O) of the salt?
Which one of the following pairs is a conjugate acid-base pair?
Draw the product that is formed when the compound shown below is treated with an excess of HCl. Draw only the organic ion.
Using the equation pKa= -log Ka, calculate the Ka from the pH value and the starting acetic acid concentration. Calculate the Ka of acetic acid.
Gaseous HBr has an absorption band centered at about 2645 cm-1 consisting of a series of lines approximately equally spaced with an interval of 16.9cm-1.
A gas in a sealed container has a pressure of 125 kPa at a tempurature of 30.0 degrees celcius. If the pressure in the container is increased to 201 k Pa, what is the new tempurature?
The half life of oxygen-19 is only 29 seconds. Lets say we somehow instantly make a Liter of O-19 in a reactor. So at t = 0 we have 1 Liter of this isotope. What fraction of the O-19 isotope would be present after 5 seconds?
what is the percent yield of a reaction in which 260. g phosphorus trichloride reacts with excess water to form aqueous
determine the mass of snow that can be completely melted.use the table below to work the following
When sodium carbonate dissolves in water, the carbonate ion CO3^2- acts as a base. write a balanced equation for the reaction of the carbonate ion with water.
Three gases (8.00 g of methane,CH4 , 18.0 g of ethane, C2H6, and an unknown amount of propane,C3H8) were added to the same 10.0L- container. At 23.0 °C, the total pressure in the container is 4.10 atm. Calculate the partial pressure of each gas in..
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