How many grams of a gas with a molar mass 36.02 g/mol would be required to occupy a 1894 mL flask at 1 atm and 90.3 degrees Celcius? Record your answer in scientific notation to 2 decimal spaces.
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How many grams of NaCl (1 molar mass = 58.44 g/mol) are required to make 350 mL of a 1.25 M NaCl solution
Question 10(5 points) A sample of gas with a molar mass of 8.0067g/mol grams is found to occupy 3.20 L at 298.0K and 732.0 mm Hg. What is the density of the gas in g/L? Your Answer: Answer units Save Question 11 (5 points) B A certain electromagnetic wave has a wavelength of (3.25x10-7) nm. What is the frequency of the wave? Report your answer in scientific notation. Note: Your answer is assumed to be reduced to the highest power...
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How many moles are contained in each number of grams of table sugar (C12H22O11, molar mass 342.3 g/mol)? Enter your answer in scientific notation. a. 13.0 g b. 0.0470 g
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3a. Calculate the required mass of an unknown nonelectrolyte (ℳ = 125.7998 g/mol) dissolved in 129.7 g of solvent that gives a solution that freezes at 1.85 °C. The freezing point of the pure solvent is 4.44 °C and its Kf value is 1.87 °C/m. Report your answer to TWO places past the decimal. 3b. Calculate the molar mass (in g/mol) of an unknown nonelectrolyte if 0.613 g dissolved in 250.3 mL of water at 19.47 °C has an osmotic...
How many grams of Al would be required to form 245 g AlCl3? How many molecules of Al are required to fully react with 100.0 g Cl2? 12.5 mL of 12.0 M HCl (aq) is transferred to a flask and an additional 200.0 mL of water is added. Determine the molar concentration of the new, dilute HCl (aq).
A laboratory group measures an excess of a volatile liquid. They add this to an empty flask with a volume of 29 mL. They heat the sample to 100.7 degrees Celcius until all the liquid is vaporized. The pressure in the lab is 0.987 atm. If 0.229 grams of volatile liquid were left in the flask, what was the molar mass of the compound? Record your answer to 2 decimal spaces.