Putting it together chapters 1-4.doc - Putting it together,...

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Putting it together, Chapters 1-41.1.00 cm is equal to how many meters?(a) 2.54(b) 100.(c) 10.0(d) 0.0100
2.1.00 cm is equal to how many inches?
4.The number 0.0048 contains how many significant figures?oFoF)
8.An object has a mass of 62 g and a volume of 4.6 mL. Its density is:
11.An empty graduated cylinder has a mass of 54.772 g. When filled with 50.0 mL ofan unknown liquid, it has a mass of 101.074 g. The density of the liquid is:(a) 0.926 g/mL(b) 1.08 g/mL(c) 2.02 g/mL(d) 1.85 g/mL(Calculate the mass of the liquid, and then plug into density: 101.074 g – 54.772 g= 46.302 g.d = m / V = 46.302 g / 50.0 mL = 0.92604 g/mL)12.The conversion factor to change grams into milligrams is:(a) 100 mg / 1 g(b) 1 g / 100 mg(c) 1 g / 1000 mg(d) 1000 mg / 1 g.(The idea is to introduce mg and cancel the grams. Hence, mg / g)13.What Fahrenheit temperature is twice the Celsius temperature?(a) 64o(b) 320oF(c) 200oF(d) 546FoF
(must do by trial an error:oC = (oF – 32) / 1.8;64oF = 17.8oC;320oF = 160oC)
14.A gold alloy has a density of 12.41 g/mL and contains 75.0 % gold by mass. Thevolume of this alloy that can be made from 255 g of pure gold is:This volume contains 75% by mass gold. Thus, 8.058 mL of the alloy contains 75
g of gold.From proportion: 8.058 mL : 75 g = X: 255 gX = 27.4 mL)

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