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99年 - 99輔大轉學考營養學-基礎化學#83062
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題組內容
3. Are the following processes exothermic or endothermic?
(c). N
2
O
5(g)
+ H20(l) + 2HN0
3(i)
→ 2HN0
3(1)
+18.3 kcal
其他申論題
1. Normal body temperature is 98.6 °F. Calculate the corresponding temperature in degrees Celsius; and in Kelvin units.
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2. Calculate the number of grams of O2 that will react with 1.00 mol of C3H8.
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(a). Fuel oil is burned in a furnace.
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(b). C6H12O6(S)→ 2C2H5OH(i) + 2C02(g),△H= -16 kcal
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(d). N2(g) + 202(g) + 16.2 kcal→2NO2(g)
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4. The density of ethanol at 20°C is 0.789 g/mL. What is its specific gravity?
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(a). 58 protons, 58 electrons, and 78 neutrons,
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(b). 17 protons, 17 electrons, and 20 neutrons?
#337065
(a). Ammonium phosphate; (NH4)2PO3
#337066
(b). Barium carbonate; Ba2CO3
#337067