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A vessel containing 45.0 cm3 of helium gas at 25°C and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium. If this required 16.2 cm3 of ethanol, what was the final temperature of the helium?
If the specific heat of aluminum is 0.214 cal/g C, how much heat would it take to increase the temperature of a 100. gram block of aluminum from 25.0 C to 75.0 C?
What is the nature of the substance(non polar, polar, ionic) and intermolecular force(ionic or van der waals if van der walls give type including h-bond)
calculate the pH formed by mixing 100 mL of 0.20 M HCL with 50 mL of 0.30 M NaOH.
Provide me with your exact logic used to get the answer. A mysterious material was purified from safflower oil (hint: full of fatty acids). Upon ozonolysis it gave the following compounds in their respective molar ratios.
The structure of HxWO3 could contain H+ ions or OH- ions. Which do you think is more likely? Why?
calculate the activation energy for a reaction if its rate constant increases from 10 to 45 s as the temperature increases from 298 to 315 k .
Determine the product of the reaction. As a general rule, a metal will combine with a nonmetal to form an ionic compound.
At 212 mm Hg and 24 °C, a sample of gas occupies a volume of 125 mL. The volume is increased to 325 mL and the temperature is reduced to -5.0 °C. What is the final pressure of the gas in the flask?
What is the identity of the atom A When a solution containing .634 grams of ACl 3 was permitted to combine with an excess of aqueous silver nitrate AgNO 3
A nugget of pure gold of 4.80 grams is absorbed 284 Joules of heat. if the initial temperature was twenty eight degree Celsius then what was the final temperature of the Au? The specific heat of gold = 0.129 J/(g·°C)?
Consider a process carried out on 1.00 mol of a monatomic ideal gas by the following pathway from state A to state B
The rate of effusion of a particular gas was measured and found to be 24.0 mL/min. Under the same conditions, the rate of effusion of pure methane (CH4) gas is 47.4 mL/min. What is the molar mass of the unknown gas?
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