Final Exam Practice Questions Chemistry 103- General Chemistry 2023

Which nitrogen - containing compound is one cause of acid rain? - ANS-NO2 How many moles of gas would be found in a rigid 5.0L cylinder at 12.0 atm pressure and 15 degrees C - ANS-2.5 mol Which is the IUPAC name for Cu2SO3? - ANS-copper (I) sulfite NH3, H2S, NO2, and Cl2 each has a distinct odor. If you were standing one meter away when bottles of each of these gases were opened simultaneously, which gas would you smell first? - ANS-NH3 Which statement best describes the change phase of a gas to a liquid? - ANS-It is exothermic because energy is released Which is the volume of 7.50 mol argon, Ar, at STP? - ANS-168 Liters Which can be used to most accurately measure the volume of a liquid? - ANSgraduated cylinder If the atmospheric pressure is 99kPa and the water vapor pressure is 3.0 kPa, then what is the pressure of the gas collected over water? - ANS-96 kPa Express the measurement of 3750 meters in correct scientific notation. - ANS-3.75 x 10 raised to the third (3) meters What is produced when zinc, Zn(s), reacts with dilute sulfuric acid, H2SO4(aq) - ANSH2+ZnSO4 Which sample of gas at STP has the same number of molecules as 2.0 L neon, Ne, at STP. - ANS-2.0 L of fluorine, F2 Lysine has a molecular formula of NH2 (CH2)4 CHNH2 COOH. What is the empirical formula for lysine. - ANS-C6,H14,O2,N2 The melting point of gallium is 29.8 degrees C. What is the physical state of gallium at 250K? - ANS-solid ________ H3PO4+_______ Ca(OH)2 ---- Ca3(PO4)2 + ? H20. Which is the coefficient of water, H20, in this equation when it is balanced using the whole number coefficients? - ANS-6 Continues...