CSM CHEM 210 Final Exam 2023 With Complete Updated Solution

If the fuel efficiency of an automobile is 22 miles per gallon, what is its fuel efficiency in Kilometers per liter? ( 1Km= 0.621 mile, 1.00 L=1.057 quarts and 4 quarts = 1 gallon) - answer9.4 Km/L *What is the correct answer to the following expression: (49.1 - 42.61 ) x 13.1? - answer85 An intensive property of a substance is independent of amount. - answerTrue Lithium has two stable isotopes with masses of 6.01512 amu and 7.01600 amu. The average atomic mass of Li is 6.941 amu. What is the percent abundance of each isotope? - answer7.493% Li-6 and 92.51% Li-7 C3H8 + O2 -- CO2 + H2O (unbalanced) How many grams of oxygen are required to burn 36.0 grams of C3H8? - answer131 g *There are mol of bromide ions in 0.500 L of a 0.500 M solution of AlBr3 - answerWe put 0.250 - WRONG FIGURED OUT 0.75 Aluminum reacts with chlorine to produce aluminum chloride. If 2.00 moles of Al reacts with excess Cl2, how many grams of AlCl3 can be formed? Al + Cl2 AlCl3 . ( unbalanced) - answer266 g A mixture of MgCO3 and MgCO3.3H2O has a mass of 2.883 g. After heating to drive off all the water the mass is 2.427 g. What is the mass percent of MgCO3.3H2O in the mixture? - answer40.4 A precipitation is expected when an aqueous solution of sodium iodide is added to an aqueous solution of - answerMercury(I) chloride