General Chemistry Final Questions & Answers

General Chemistry Final Questions & Answers ____ states that, electrons will not join other electrons in an orbital if an empty orbital of the same energy is available. - CORRECT ANSWER - Hund's rule 2500 liters of oxygen gas is produced at 1.00 atm of pressure. It is to be compressed and stored in a 20.0 liter cylinder. If temperature is constant, calculate the pressure of the oxygen in the cylinder. - CORRECT ANSWER - 125 atm 5.6 mCi would be equal to: - CORRECT ANSWER - 2.1 x 108 disintegrations per second A 0.9% NaCl (w/w) solution in water is - CORRECT ANSWER - a solution that boils at or above 100° C A 5.00 liter gas sample is collected at a temperature and pressure of 27.0°C and 1.20 atm. It is desired to transfer the gas to a 3.00 liter container at a pressure of 1.00 atm. What must be the temperature of the gas in the 3.00 liter container? - CORRECT ANSWER - 150K A doctor has given your patient a prescription of a common amphetamine. What should the patient avoid when taking this medication? - CORRECT ANSWER - alcohol A furnace delivers 8.0 x 104 BTU per hour. How many kilocalories per hour is this? (hint: 1 cal = 0.00397 BTU) - CORRECT ANSWER - 2.0 X 104 kcal A good radioisotope tracer for medical use should not have the following characteristic. - CORRECT ANSWER - have a long half-life A molecular formula - CORRECT ANSWER - is represented using the symbols of the elements in the formula A molecule represented by O-O-O must be classified as - CORRECT ANSWER - homoatomic and polyatomic A reaction is spontaneous when - CORRECT ANSWER - The conditions are present for that reaction to progress and it does. A solution is made by dissolving 5.84 grams of NaCl in enough distilled water to give a final volume of 1.00 L. What is the molarity of the solution? - CORRECT ANSWER - 0.100 A solution is prepared by dissolving 4.66 g of KCl in enough distilled water to give 250 mL of solution. KCl is a strong electrolyte. How will the freezing point of the solution be different from that of pure water? Note: Kf for water is 1.86°C/M. - CORRECT ANSWER - solution will be 0.930°C lower than water Acetylene, C2H2, burns according to the following reaction: C2H2 +5O2 → 4CO2+2H2O. Suppose 1.20 g of C2H2 is mixed with 3.50 g of O2 in a closed, steel container, and the mixture