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When 1.0 g of gasoline burns, 11500 calories of energy are given off. If the density of gasoline is 0.74 g/mL, how many kilocalories of energy are obtained from 1.1 gallons of gasoline?
Stoichiometry of reactions, When a mole of C7H16 is combusted, it reacts with 11 moles of O2. How many moles of CO2 product are obtained? How many moles of H2O product are obtained?
What is the molecular formula of the compound with empirical; formula C5H8O and molar mass 336.5 g mol-1?
Find the mass of a reactant using Dalton's law of partial pressures, ideal gas law, and stoichiometry - Determine the amount of zinc metal in grams consumed in the reaction.(Vapor pressure of water at 25 o C-23.8mmHg)
A solution of iodine was standardized with ascorbic acid. A 0.1150 g sample of ascorbic acid required 28.37 mL of I2 to reach a starch end point. Calculate the molarity of the iodine solution.
What is the hardness of this mineral? What is the specific gravity of this mineral? show your calculations. Using all these properties, identify this mineral?
If the acid dissociation constant, Ksuba, for an acid HA is 8 x 10^-4 at 25 degree C, what percent of the acid is dissociated in a 0.50 M solution of HA at 25 degree C?
Calculate the change in temperature for 4.5g of CaCl2 dissolved in 90.0mL of H20. Assume that calorimeter absorbs no heat. (Ccal=0)
A 47.0 mL sample of gas in a cylinder is warmed from 28 degrees Celsius to 91 degrees Celsius. What is the final temperature?
Calculate the value of Delta G for the process- AgCl (s) Ag+(aq) + Cl-(aq) to yield a saturated solution at 298 K.
A 320. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 59°C?
A cylinder contains 975 grams of chloroform, CHCl3, How many atoms of carbon are in the sample? How many atoms of chlorine are in the sample?
Which element requires the least amount of energy to remove the most loosely held electron from a gaseous atom in the ground state?
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