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Write the balanced chemical equation for the combustion of mesitylene. Remember to start with the molecular formula (not the empirical formula).
A buffer solution was prepared by adding 4.95 g of sodium acetate, NaCH3CO2, to 2.50 x 10^2 mL of 0.150 M acetic acid, CH3CO2H. What is the pH of the buffer?
Conductivities are often measured by comparing the resistance of a cell filled with the sample to its resistance when filled with some standard solution, such as aqueous potassium chloride. The conductivity of water is 76 mS m^?1 at 25°C
A mixture of 70 mole% propane and 30 mole% hydrogen is burned with 30% excess air.
Consider the molecules ClF3O and BrF3O. (a) Would expect the lone pair on the central halogen to be axial or equatorial in these molecules? Explain
how many total moles of ions are released when each of the follwing samples dissolves completely in water?
when the cations Na+ K+ Cs+ are combined with chloride ion in the gas phase to form ion pairs, which pair formation releases the greatest amount of energy? KCL or RbCl, or NaCl or CsCl.
What will be the average atomic mass of element A if percentage abundance of these two isotopes are 48.17 % and 51.83 % respectively. ?
For the reaction given below at 700°C, Kc = 0.534. H2(g) + CO2(g) reverse reaction arrow H2O(g) + CO(g) Calculate the number of moles of H2 that are present at equilibrium
Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced?
Calculate the final pressure of a gas if a 953-mL sample of the gas at 1.25 atm and 50.0 degrees Celsius is changed to 1.55 L at 75.0 degrees Celsius.Be sure to include units and correct significant figures
What are the equilibrium partial pressures of CO(g) and CO2(g) when 2.32 atm CO(g) and excess FeO(s) react in a sealed container at 1000°C? PCO atm PCO2 atm
Use a drawing program to draw a beaker.
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