Determine total moles of atoms
A sample of propane,C3H8, contains 10.8 moles of carbon atoms. How many total moles of atoms does the sample contain?
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What is the electron domain geometry and molecular geometry for iodine trichloride
The normal respiratory rate for a human being is 15.0 breaths per minute. The average volume of air for each breath is 505 cm3 at 20 ? C and 9.95 × 10 4 Pa. What is the volume of air at STP that an individual breathes in one day? Give your a
Lithium iodide has a lattice energy of -720kJ/mol and a heat of hydration of -793kJ/mol. Determine how much heat is evolved or absorbed when 10.0g of lithium iodide completely dissolves in water.
"When strongly heated, magnesium sulfide formed a yellow crystalline deposit on the walls of a sealed reaction vessel. Metallic deposits were found on the bottom of the container" .
One of the components of pineapple flavor is ethyl butyrate, which has the empirical formula (C3H6O)x. Its vapor took 162 seconds to effuse through a porous plug; the same amount of Co2 molecules effused through the plug in 100seconds under the sa
A 93 gram solution of silver nitrate contains 16 grams of AgNO3. What is the percent by mass of silver nitrate in this solution?
What is the specific heat of a metal if the temperature of a 12.5-g sample increases from 19.5 degrees C to 33.6 degrees C when it absorbs 37.7 J of heat?
Calculate the molarity of acetic acid in a viegar sample, knowing that 5.00 mL of vinegar requires 43.50 mL of 0.105 M NaOH to jut reach the phenolphthalein endpoint in a titration.
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