What is the percent by mass of silver nitrate
A 93 gram solution of silver nitrate contains 16 grams of AgNO3. What is the percent by mass of silver nitrate in this solution?
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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" .
A sample of propane,C3H8, contains 10.8 moles of carbon atoms. How many total moles of atoms does the sample contain?
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
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.
Suppose you have 10 ml of 0.10m sucrose solution. you add 90 ml of water to the solution. Do the number of sucrose change? Does the molarity change?
What mass of NaCl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 °C? The freezing point depression constant, Kfp, for water is -1.86 °C/m. Assume the van't Hoff factor for NaCl is 1.87.
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Point of use cleaning of used instruments MUST be performed immediately following the procedure in the following location