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A 0.468 g sample of pentane, C5H12, was burned in a bomb calorimeter. The temperature of the calorimeter and the 1 kg of water rose from 20.45 degrees Celsius to 23.65 degrees Celsius. The heat capacity of the calorimeter is 2.21 kJ/Degrees Celsius. Using this information, determine the heat of combustion per mole of pentane. Could someone please explain clearly step by step on how to solve this problem.
ow many grams and how many moles of octane must be burned to release 450 kcal?
Which of the following substances is more likely to dissolve in liquid CS2. a). Sodium Iodide b). Lithium Iodide c). Iodine d). Potassium iodide
A white precipitate formed. This mixture was centrifuged and separated, and the clear solution was then treated with 1 M Na2Co3. No Preceipitate formed. Which metal ions were present in your unknown? Which metal ions were absent
A sample of propane,C3H8 , contains 18.0 moles of carbon atoms. How many total moles of atoms does the sample contain? Express the total number of moles of carbon and hydrogen numerically.
The concentration of Mg2+ in a sample of water is 262 mmol/L At what pH will 99% of the Mg2+ be precipitated as Mg(OH)2? Ksp = 8.9 x 10-12
mnbipyn32 is a coordination complexwith azide ion. what is the charge on the manganese? what is the overall charge on
Consider a glass of 254 mL of water at 25°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved.
How do I determine if an ionic compound has the crystal structure of a simple cubic, a body-centered cubic or a face-centered cubic. E.g. NaCl has a structure based on a face-centered cubic lattice. Why is that
When 1 mole of n-propylbromide is mixed with 1 mole of ammonia in a convenient solvent, only 50% conversion is achieved (ie, only 0.5 mol of ethylamine is formed) unless also 1 mol of a base,
Draw a representation of the 3-D structure of the anion, including only the bonding-pair electrons, and any sulfur lone-pair electrons. What is the orientation of the oxygen atoms with respect to each other around the S-S bond?
All of the following are physical properties of a substance in a liquid state EXCEPT a.indefinite volume b.definite mass c.not easily compressed d.indefinite shape
What are the entropy change and Gibbs energy change on mixing to produce a benzene-toluene solution with 1/3 mole fraction benzene at 25C
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