Answer Happy

1 Final Exam CHM 201 Name Spring 2022 1 inch 2.5 cm freezing point of water O'C 2.2 pounds 1 kilogram normal body temperature is 37°C Avogadro's number 6.02 x 10²3 °F 9/5 °C 32 Talin C 273 *C= 5/9 (F-32) Molarity moles solute 1 mole of gas at STP~22.4 liters STP 1 atm and 273K total volume of solution 1 atm pressure 760 mm mercury 30 inches mercury = 14.7 pounds/in²35 feet water There are 25 questions 4 points each 1 How many kilograms is 8.8lbs? 2 A length of 150 cm is how many inches? 3 The molar mass of H₂SO4 is closest to A 150g B 50g C 25g D 125g E 75g F 100g 4 What is the total number of moles of ethanol in 115 grams of ethanol, C₂H₂OH? A 2.5 8 3.0 C 1.5 D 1.0 E 0.75 F 0.4 G 46 5 What is the total number of atoms in 3.0 moles of Copper, Cu? A 18 x 10 86 x 10 C 29 D 63.6 E 81 F 3x 10 6 1,8 x 10 H4 x 10 6 What is the total mass of 3 x 10" atoms of Helium (He) gas? A 4.0g B 8.0g C 6.0g D 3.5 g E 3.0g F 0.5g G 2.0 g 7 300K equals. A 573°C B 27 F C -27°C D-573°C E 0°C F 273°F G 27°C 8 Which temperature below best represents the freezing point of water? A 373K B 100°F C 100K D 273K E OF F-450°F G 37°C HOK 9 How are two isotopes of the same neutral element similar?. and 10 What are the relative sizes of an electron, proton, and neutron? 11 Which element has an electron configuration of 152 252 2P6 352 3P3 Fill in the underlined spaces. For the species name-fill in either neutral atom, cation, or anion #neutrons net charge species name Species #electrons #protons 12 V 13 Fe 14 V 15 02- 16 1.5 moles Argon, Ar= grams of Argon 17 1.5 moles Argon, Ar = number of atoms of Argon, Ar 18 69 grams Sodium, No is moles sodium, Na 1