105 F11 lecture 10

105 F11 lecture 10 - Solve the Mystery Fire crews at a...

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Chemistry 105 Diamond Ring Under White Light
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Diamond Ring Under UV Light
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A mole of diamond (60 carat) $7,230,500.
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Mass Moles Atoms or molecules Molar mass Avogadro’s # *Mass, mole, particle conversions
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Industrial processes and Ni-Cd batteries are major sources of the 2.12 kg of cadmium metal that arrives at a water treatment plant on an average day. How many atoms is this? A. 1.14 × 1025 B. 1.44 × 1029 C. 60.22 × 1025 D. 3.13 × 10-23 E. None of these
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Expanding to reactions A forklift combusts 10.3 grams of methane (CH4) fuel in 15 seconds. How many grams of H2O are produced? A. 11.6 B. 18.31 C. 23.2 D. 2966 E. 5933
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Unformatted text preview: Solve the Mystery Fire crews at a house fire notice an odorous liquid under some unburned floorboards. The liquid is taken back to the laboratory for analysis. Combustion analysis How can the chemical formula of a hydrocarbon be determined? 15.215 g of a hydrocarbon (C, H, and O possible) were burned in pure oxygen creating 35.210 grams of CO2 and 7.206 grams of H2O. Combustion analysis 75.45 g of hydrocarbon were burned in pure oxygen creating 21.98 g of CO2 and 8.992 g of H2O. • What is the empirical formula of the compound? A. CH B. CH2 C. CH3 D. C2H...
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105 F11 lecture 10 - Solve the Mystery Fire crews at a...

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