Determine both the empirical and molecular formulas
A compound contains 10.13g of C and 89.87g of Cl. Determine both the empirical and molecular formulas of the compound given that the molar mass for the molecular formula is 237g/mol.
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A sample of neon has a volume of 470 mL when it is at a pressure of 685 mmHg. What will be the volume when the pressure is increased to 1212 mmHg?
The molar mass of corn oil is 890g/mole. How many moles and how many grams of sodium hydroxide are required to react with the 15mL (13.7g) of corn oil? Show your calculations a. Calculate the number of moles in 13.7 g of oil.
Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 48.7 g of sodium are added to water?
Calculate the expected change in temperature for 4.5 g of NH4NO3 dissolved in 100.0 mL of H2O. Assume that the calorimeter absorbs no heat.
A sample of air from the basement of a home is found to contain 8.3 ppm of radon. What is the partial pressure of radon in the basement if the total pressure is 755 torr? A. B. C. D. E. 6.8 104 mol/L 5.2 104 mol/L 4.9 104 mol/L 3.8 104 mol/L 1.1 1
a 125 g metal block at a temperature of 93.2 degrees Celsius was immersed in 100 g of water at 18.3 degrees celsius. Given the specific heat of metal (s= 0.900j/g x degrees celsius), find the final temperature of the block and the water.
You are to submit a detailed plan covering your operations both nationally and internationally in addition to the conduct of its employees, vendors, board of directors, and its business operations overall.
You drop a 142-g piece of brass (density = 8.56g/cm3) into the water. To what height does the water risein the graduated cylinder?
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