(a) To identify a liquid substance, a student determined its density.Using a graduated
Chapter 13, Problem 1.29(choose chapter or problem)
(a) To identify a liquid substance, a student determined its density.Using a graduated cylinder,she measured out a 45-mLsample of the substance. She then measured the mass of the sample, finding that it weighed 38.5 g. She knew that the substance had to be either isopropyl alcohol or toluene . What are the calculated density and the probable identity of the substance? (b)An experiment requires 45.0 g of ethylene glycol,a liquid whose density is . Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder.What volume of the liquid should he use? (c)A cubic piece of metal measures 5.00 cm on each edge. If the metal is nickel, whose density is , what is the mass of the cube?
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