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Without a reference sample of a pure compound, can melting point alone be used to unambiguously assignt the correct chemical structure to an unknown? Explain.
a balloon is filled to a volume of 7.00 times 10^2 mL at a temperature of 20.0 degrees celcius. the balloon is then cooled at constant pressure to a temperature of 1.00 times 10^2 K. what is the final volume of the balloon?
A bicycle tire is filled with air to a pressure of 75. psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 degrees celcius. The volume of the tire increases by 4.0%. What ..
The mass percentage of iodine in the compound was determined by converting the iodine in a 0.850 g sample of the compound into 2.31 g of lead(II) iodide. What is the empirical formula of the compound? Could the compound also contain oxygen?
Sorbic acid, C5H7COOH, is a weak monoprotic acid with Ka = 1.7 x 10-5. Calculate the pH of a solution containing 11.25 g of potassium sorbate in 1.75 L of solution.
The increase in volume is due to the H2 gas created. 50 g of tin (Sn) is 0.421 moles. That is also the number of moles of H2 that are created. Use tha ideal gas law to compute the added volume due to that gas.
ow many grams and how many moles of octane must be burned to release 450 kcal?
What mass of carbon dioxide is present in 1.00 cm^3 of dry air at a temperature of 15 0C and a pressure of 697 torr?
The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Assuming an ideal solution, what is the molecular mass of the compound?
What is the molarity of sucrose, C12H22O11, that contains 125 g of sucrosein 3.50L of solution?
How reliable is the perfect gas law in comparison with the van der Waals equation? Calculate the difference in pressure of 10.00g of CO2 confined to a volume of 100cm3 at 25 degrees Celsius between treating it as a perfect gas and a van der Waals ..
What mass of silver chloride can be produced from 1.70 L of a 0.177M solution of silver nitrate.
When 0.069 mol of aluminum sulfate are dissolved in enough water to make 485 milliliters of solution, what is the molar concentration of aluminum ions?
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