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When a 0.550g sample of olive oil is burned in a calorimeter, the heat released increases the temperature of 370g of water from 22.7C to 38.9C? What is the energy value of the olive oil in kJ/g and kcal/g?
What are the quantum numbers associated with the last electron[highest energy] in ground state Zn. please be very explicit as to the process and confer all of your internal dialog as you perform the exercise.
Calculate the molar solubility of AgBr in a 1.00 M aqueous solution of ammonia. Then calculate the solubility of AgBr in pure water, and compare the two solubilities. (Ksp for silver bromide is 7.7x10^-13 and Kf for Ag(NH3)2+ is 1.6x10^7)
How many seconds after the start of the reaction does it take for the reactant concentration to decrease to 0.0131 M?
When a 4.25-g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 degree C to 16.9 degree C.
Find the absolute and relative uncertainty and express each answer with a reasonable number of significant figures.9.2 (+/- 0.7) * [[5.4 (+/- 0.3) * 10^-3] + [5.6 (+/- 0.1) * 10^-3]]
A reaction vessel contains these compounds at equilibrium. What will happen if the volume of the container is reduced by 50% at constant temperature.
draw an electron-dot structure for acetonitrile c2h3n which contains a carbon-nitrogen triple bond. how many electrons
Assume that no heat is lost to the surroundings or to the coffee cup itself. Assume that the mass of the solution is equal to the mass of the water.
Magnesium sulfate, MgSO4, is added to 461 mL of 0.030 M sodium hydroxide, NaOH, until a precipitate just forms. How many grams of magnesium sulfate were added?
A 195mg sample of a non-electrolyte isolated from throat lozenges was dissolved in enough water to make 10.0mL of solution at 25 degrees Celsius. The osmotic pressure of the resulting solution was 4.83atm. Calculate the molar mass of the compound.
A 40.0ml sample of 0.150 Ba(OH)2 is titrated with 0.400M NH)3 . Calculate the pH after the addition of the following volumes of acid, and plot the versus milliliters of added.
The mass of Earth is 5.974 ô°€ 1024 kg. Assume that Earth is a sphere of diameter 1.28 ô°€ 104 km and calculate the average density of Earth in g/cm3.
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