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Acid-Base Reactions
a. What is formed in the reaction between a strong acid and a strong base? What is this type of acid-base reaction called?
b. What kind of experiment determines an unknown concentration of an acidic solution by adding a measured amount of a basic solution?
c. Antacids such as Rolaids and Tums are used to relieve heartburn and sour stomach. Products like these commonly contain substances such as Mg(OH)2, Al(OH)3, and CaCO3.
i. What is it about these substances that soothe a burning stomach? How do they work?
ii. Many antacids also have the ability to buffer the stomach acid. What would be the purpose of a buffer in an antacid?
Explain how many mL of water should be added to 1000mL of a 0.1581 M solution of Ba(OH)2 to make it exactly 0.1000 M
Problem- A quantity of 0.2 mol Kg^-1 of trimethylammonium hypochlorite [(CH3)3NHCl] is added to a water at 298.15 K. Compute the H3)^+ concentration in the solution.
Calculate the pH of a strong base solution formed by mixing 16.2 mL of 8.93e-05 M LiOH with 23.6 mL of 9.10e-05 M Sr(OH)2.
How much heat is liberated by the combustion of 183 g of hydrogen? ΔHcomb = -286 kJ/mol.
A 455-g piece of copper tubing is heated to 89.5 oC and placed in an insulated vessel containing 159 g of water at 22.8 oC. Assuming no loss of water and a heat capacity of 10.0 J/K for the vessel
In an industrial preparation of silicon, 155.3kg of SiO2 of is allowed to react with 79.3kg of carbon to produce 66.2kg of silicon. What is the theoretical yield for the reaction in Kg Si
the external pressure is constant at 1.00 atm; and 4) the heat of vaporization of water is 2.26 kJ/g. What is q for the vaporization of 1.00 g of liquid water at 1.00 atm and 100C, to the formation of 1.00 g of steam at 1.00 atm and 100C
How many moles of gas are contained in a typical human breath that takes in 0.50 L of air at 1.0 atm pressure and 37 oC? Units are moles- just write the number.
Draw the best Lewis structure for azoxymethane, whose sigma-bond network is given to you. Azoxymethane is a neutral molecule.
What mass of sodium benzoate should add to 150ml of .15 M benzoic acid solution to obtain a buffer with a ph of 4.25
how many grams will remain after 98.0 daysnbsp if phosphorus-32 has a half-life of 14.0 days starting with 6.00g of
Compute the volume of a 2.0 M sodium hydroxide solution needed to prepare 100mL 0.30 M sodium hydroxide solution
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