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The heat of reaction for the combustion of cyclohexane, C6H12, is 936.8 kcal/mol. What is the heat of combustion for cyclohexane in kcal/gram?
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)→ 2K2O(s) + 2N2(g) + 5O2(g)
A sample of argon gas occupies a volume of 950 mL at 25.0°C. What volume will the gas occupy at 50.0°C if the pressure remains constant?
A balloon filled with helium gas has a volume of 500 mL at pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm.
Determine the molar mass of Freon-11 gas if a sample weighing 0.597 g occupies 100 cm3 at 95°C, and 1000 mmHg.
Which of the following statements is true regarding chiral carbons with R configuration? a. plane polarized light is rotated clockwise b. plane polarized light is rotated counterclockwise
Application of Avogadro's law - To evaluate the volume of a gas using Avogadro's Law.
A mixture of gases containing 21.0 g of N2, 106.5 g of Cl2 and 12.0 g of He at 14°C is in a 50.0-L container. What is the total pressure in the vessel.
You have a radiocarbon sample analyzed and find out that the sample has 60% of the modern level of radiocarbon. Calculate the radiocarbon age of the sample using an assumed 5730-year half-life.
Calculate the molar solubility of thallium chloride in 0.20M NaCl at 25 degrees Celcius. Ksp for TICl is 1.7 x 10 -4. What volume of 0.500 M HNO3 is needed to titrate 60.00 mL of 0.500 M Ca(OH)2 to the equivalence point?
A 295mLflask contains pure helium at a pressure of 742torr . A second flask with a volume of 465mL contains pure argon at a pressure of 717torr .
Elemental analysis of putrescine (The rotten smell of a decaying animal carcass is partially due to a nitrogen-contained compounded) showed
when 31g of phosphorus reacts with oxygen, 71g of an oxide phosphorus is the product. What mass of oxygen is needed to produce 13g of this product?
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