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A) The enthalpy of combustion for C6H12O6(s) is -2830kj/mol.
a. Write a balanced equation for the combustion of C6H12O6 in air.
b. Using the delta Hac values and the given heat of combustion calculate the standard enthalpy of atom combination Delta H ac of C6H12O6.
B) Calculate the delta H rxn for each of the following equations:
a. Fe2O3(s) + 2Al(s)---->AL2O3(s) + 2Fe(s)
b. 3SiO2(s) + 4Al(s)----->2Al2O3(s) + 3Si(s)
C) Which of those reactions produces the most heat per gram of aluminum consumed?
Calculate the equivalent number of moles of potassium permanganate? 3) calculate the clarity of the potassium permanganate solution?
1-A 500 mL NaCl solution is diluted to a volume of 1.24 L and a concentration of 8.00 M. What was the initial concentration C1? 2- write the total ionic equation.Be sure to include the charges on the ionic species and the physical state of all the..
how many grams of water are formed when 5.00 g of butanol combust with excess oxygen according to the reaction shown
What if you did the extraction 3 times 3. What if you just used 45 mL of ether in one big extraction. Why isn't this better
A 0.894-g sample of gas occupies 125 mL at 60. cm of Hg and 25C. What is the molar mass of the gas.
Given the following substances and their melting points, hydrogen, -259 degrees Celsius, ethyl alcohol, -114 degrees Celsius, water, 0 degrees Celsius, sucrose, 186 degrees Celsius, and calcium chloride, 772 degrees Celsius
A pure substance can exist simultaneously as a solid, liquid, and vapor only at: 1. the critical point 2. at the triple point 3. at the boiling point 4. at no temp. 5. at all temp.
Calculate the molar solubility of Mg(OII)_2 in a solution with a pH of 12.8 (K_op of Mg(OH)^2 is 1.2 * 10^-11
calculate the volume of 1.42 M NaOH solution required to titrate 23.9 mL of a 1.5 M H3PO4 solution
determine the cell potential for the galvanic cell described below. pts bro4- 10.6 mm bro4- 4.9 mm ph 6.17 no3- 12.6
Use the cell potential for the Pb-PbI2 cell and the known [Pb2+] to calculate the [Pb2+] in equilibrium with PbI2.
The formulation of one commercial antacid includes both aluminum hydroxide and magnesium hydroxide. Suggest a possible reason for this combination
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