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99年 - 99輔大轉學考營養學-基礎化學#83062

科目：研究所、轉學考(插大)-營養學 | 年份：99年 | 選擇題數：0 | 申論題數：18

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所屬科目：研究所、轉學考(插大)-營養學

選擇題 (0)

申論題 (18)

1. Normal body temperature is 98.6 °F. Calculate the corresponding temperature in degrees Celsius; and in Kelvin units.
2. Calculate the number of grams of O2 that will react with 1.00 mol of C3H8.
(a). Fuel oil is burned in a furnace.

(b). C6H12O6(S)→ 2C2H5OH(i) + 2C02(g)，△H= -16 kcal

(c). N2O5(g) + H20(l) + 2HN03(i) → 2HN03(1) +18.3 kcal

(d). N2(g) + 202(g) + 16.2 kcal→2NO2(g)

4. The density of ethanol at 20°C is 0.789 g/mL. What is its specific gravity?
(a). 58 protons, 58 electrons, and 78 neutrons,
(b). 17 protons, 17 electrons, and 20 neutrons?
(a). Ammonium phosphate; (NH4)2PO3
(b). Barium carbonate; Ba2CO3
(c). Aluminum sulfide; AI2S3
(d). Magnesium sulfide; MgS
(a).Which reactant is the limiting reagent and which reactant is in excess?
(b). How many grams of CO2 will be formed?
8. In an experiment forming ethanol, the theoretical yield is 50.5 g. The actual yield is 46.8 g. What is the percent yield?
9. If we dissolve 18.0 g of Li2O (molar mass = 29.9 g/mol) in sufficient water, to make 500.0 mL of solution, what is the molarity of the solution?

10. Balance each equation.
(a). CH4 + O2→CO2 + H2O
(b). Ba(NO3)2 + H2S →BaS + HNO3