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Assume each of the following: the fuel has an average formula of C7H16; 15% of the heat generated from combustion goes to heat the water (the rest is lost to the surroundings); the density of the fu
43.8 ml of 0.170 M HCl is needed to neutralize 37.6 ml of Ba(OH)2 solution. What is the molarity of the base. 2 HCl + Ba(OH)2 =BaCl2 +H20
For a certain reaction ?Gorxn = 27.9 kJ/mol. What is the equilibrium constant at 225oC? Remember to convert kJ to J to have consistent units and the temperature to K.
You are given an impure solid that contains 70% of the desired product. After extracting 15g of the material, you recover 6g of the pure compound. What is the percent recovery
Write the correct equation for the reaction resulting from the mixture of 0.01 mols pure sulfuric acid with 0.01 mols sodium cyanide forming a crystalline solid among the products
Heatite, Fe2O3 is an important ore of iron, the free metal is obtained by reacting hematite with carbon monoxide in a blast furnace. carbon diozide is formed in the furnace by paritial combustion of
Calculate the concentration of SCN- present in the Hg22+/Cu+ solution when the first (initial) cation begins to precipitate, and the concentration of SCN- present in this solution when the second (f
Designate the Bronsted-Lowry acid and the Bronsted-Lowry base on the left side of the equation below, and also designate the conjugate acid and the conjugate base on the right side
A solution of NaOH(aq) contains 8.7 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C.
Suppose you have 0.3562g of Na2C2O4 and is dissolved in 250 mL volumetric flask. If 10 mL of this solution requires 48.36 mL of KMnO4 solution for titration, what is the molarity of the permanganate
When 25.0 mL of unknown was passed through a jones reductor, molybdate ion (MoO4^2-) was converted to Mo^3+. The filtrate required 16.43 mL of .01033 M KMnO4 to reach purple end point
what the effect does the bulkiness of the base have on the product composition in the E2 dehydrobromination of 2-bromoheptane
during the procedure you wash your crude product first with water than sodium bicarbonate solution. what is the purpose of each
Gas A has a density of 0.20 gL-1, and gas B has a density of 0.80 gL-1, both at the same specific temperature and pressure. Which gas will diffuse faster. Briefly explain.
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.
A certain ionic lattice consists of a ccp sublattice of cations. The anions occupy all of the tetrahedral sites. What is the empirical formula of the compound
In the work-up procedure the reaction mixture is neutralized with NaOH (aq) and then extracted twice with diethyl ether. Explain why this is done. This was for an OChem Menthone lab.
What the effect does the bulkiness of the base have on the product composition in the E2 dehydrobromination of 2-bromoheptane?
Be specific of what type of compound butane is (ionic or covalent). If it isionic, mention which is the cation and which is the anion. Discuss how the ions formed
Calculate the energy difference (E) for the transition from n = 1 to n = 4 energy levels of hydrogen per 1 mol of H atoms.
If the pH of a 1.00-in. rainfall over 1500 miles2 is 3.80, how many kilograms of sulfuric acid, H2SO4, are present,assuming that it is the only acid contributing to the pH
Write an equation showing the reaction of methanol (CH3OH) with HClO 4 as a Brønsted-Lowry acid. Answer: CH3OH + HClO4 -> CH3OH2+ + ClO4- Why is it ClO4-?
For the reaction 4NH3(g)+ 5 O2(g)= 4NO(g)+ 6H2O(l) a.) Use the following standard enthalpies of formation to calculate the enthalpy change. NH3(g)= -46.11 kJ/mol O2(g)= 0 kJ/mol NO(g)= 90.25 kJ/mol
Need explanation: In ionizing bases, the reaction of sodium hydroxide in water is Ca(OH)2 (s) = Ca2+(aq)+2OH-(aq) First of all, how do I know that Ca(OH)2 is sodium hydroxide