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Given that the molar mass of H3PO4 is 97.994 grams, determine the number of H3PO4 needed to prepare 0.25 L of a 0.2M H3PO4 solution. What volume, in Litera, of a 0.2M H3PO4 solution can be prepared by diluting 50 mL of a 5M H3PO4 solution?
Classify each reaction and give the name of all the chemical formula involved for each number
Imagine that a chemist has cyclohexanone, triphenylphosphine, butyllithium, and 1-bromopropane. Draw the chemical structure of the alkene that you could make using these reagents in a synthesis that involves the Wittig reaction.
Air bags in automobiles inflate when sodium azide, NaN3, rapidly decomposses to its component elements: 2NaN3(s)-----2Na(s)+3N2(g). a)how many moles of N2 are formed by the decomposition of 2.50 moles of NaN3
what is the freezing point and boiling point of each of the following solutions: a)65.0g of glucose,C6H12O6, anonelectrolyte, added to .112kg of water. b).320 mol of sucrose, C12H22O11, a nonelectrolyte, dissolved in 1.50 kg of water.
What will the temperature be when the ice cube has just melted. Use 4.184 J/K*g for the specific heat capacity of ice and water. If the water is then heated to 80 degrees C by burning methane (delta H= =890.31 kJ/mol) how many grams of methane wou..
an unknown element forms a yellow ion xo . it forms a precipitate with silver ions. if 48.0 ml of a 0.250 moll solution
Gives what happens at neutral pH for aluminum hydroxide. A) Al dissolves B) Al(H2O)63+ dissolves C) Al(OH)3 precipitates D) Al(H2O)2(OH)4- dissolves
A sample of gas is heated. During the heating process, the volume of the gas increases 1.7 times. If the initial temperature of the gas is 80°C, what is the final temperature of the gas.
When a catalyst is added the reaction 2SO2(g)+O2(g)?2SO3(g) takes place. At equilibrium the total pressure is 4.05atm . Find the value of Kc.
For which substances would you predict the highest boiling point? Answer with explanations as to why?
A solution (volume = 100.0 ml) contains 0.27 M HCOOH(formic acid, Ka=1.8*10^-4) and 0.39 M KHCOO. a. Determine the pH of the solution b. We add 4.00 ml of 4.0 M HNO3 to this solution. Determine the new pH.
In a Diels-Alder reaction between 1mL (12mmol) of cyclopentadiene and 1.393 g (12mmol) of maleic acid, How do you calculate the Theoretical Yield
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