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How many grams of solid aluminum sulfide can be prepared by the reaction of 11.4 g of aluminum and 17.0 g of sulfur?
You start with 50 mL of 1.0 M acetic acid. How many mL of the acid should you place in a 100?mL volumetric flask in order to prepare
A sample of material contains contains 20 mg of I ^131. Calculate: A) The number of I ^131 atoms initially present. B) The activity in becquerels and curies.
If 125 calories of heat is applied to a 60.0 grams piece of copper at 21.0 degrees Celsius, what will the final temperature be? The specific heat of copper is 0.0920 calories per grams times Celsius.
A zero-order reaction has a constant rate of 1.70×10-4 . If after 65.0 seconds the concentration has dropped to 7.00×10-2 , what was the initial concentration?
A 1.013-g sample of ZnSO4xH2O is dissolved in an aqueous solution of BaCl2. The pure BaSO4 precipitate is filtered out of solution, dried, and its mass is determined to be 0.9400 g. What is the value of x in ZnSO4xH2O?
What is the chemical definition of a buffer solution? Give an example. 2. The Ka of benzoic acid C7H5O2H, IS 6.5X10^-5. What is the buffer range?
What is the molar ratio of initiator to sulfuryl chloride in the procedure? Why is so little initiator needed relative to the amount of chlorinating agent used
what volume in milliliters of a 0.0992 m naoh solution is required to reach the endpoint in the complete titration of a
What happened to the fabric strip when it was treated with the Test Identification Stain? How might this dye be used
A 5.00g sample of liquid water at 25.0 degrees Celcius is heated by the addition of 84.0 J of energy. The final temperature of the water is _________ degrees Celcius. The specific heat capacity of liquid water is 4.18 J/g-K
10.00mL aliquots of an unknown containing element X was mixed with aliquots of a standard solution of element X for atomic absorption. The standard solution contained 1786.50ug X/mL.
The water warms and the copper cools until the final temperature is 35.2 degrees C. Calculate the specific heat of the metal and identify the metal.
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