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Determine the reaction enthalpy for the hydrogenation of ethyne to ethane, C2H2 (g) + 2H2(g) ----> C2H6 (g) from the following data: Delta H comb (C2H2,g) = -1300 KJ/mol , Delta H comb (C2H6 ,g) = -1560 KJ/mol , Delta H comb (H2,g) = -286 KJ/mol.
Determine the fuel model (CnHm) of the hydrocarbon.- The mass percentages of carbon and hydrogen in the fuel.
Explain which of the subsequent will cause the volume of an ideal gas to triple in value. Increasing the temperature from 25°C to 75°C at constant pressure.
6M NH3, a basic solution, cannot be found on the reagent shelf, but 6 M NaOH, also a base, is available. What would be observed if the 6 M NaOH is substituted for the 6 M NH3 in testing the reference solution. Explain
a constant external pressure of 2.85 atm from 3.12 L to 11.85 L. Calculate the values of q, w, delta H, delta S system, delta S surroundings, delta S universe and delta G.
A 6.38 mg sample of potassium hydrogen phthalate was dissolved in 50 mL of water and to use as a standardizing aging. If 36.5 mL of NaOH was required to reach the end point, what is the concentration of the solution in uM
Determine the mass of lithium hydroxide producecd when 0.38 g of lithium nitride reacts with water according to the follow equation: Li3N + 3H2O equals NH3 + 3LiOH
Calculate the molar solubility in NaOH What is the molar solubility of Mg(OH)2 in 0.110M NaOH. Express your answer with the appropriate units.
To determine the number of molecules present in air using the ideal gas law and Avogadro's number - how many molecules of each type of gas are present in 1.0 L of air at STP?
find the amount of caffeine in milligrams that are isolated per gram of tea leaves. each tea bag contains 2.3 grams of
Question- Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 3.50-g sample is burned, and 2.90 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture
Cl2+2KBr yields 2KCl+Br2- how many moles of potassium chloride are produced from 119 g of potassium bromide
If 138 mL of wet H2 is collected over water at 24°C and a barometric pressure of 748 torr, how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 torr at 24°C.)
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