CHEM 1411 Practice Set for exam Questions and answers available

CHEM 1411 Practice Set for exam Questions and answers available Use the power point slides for exam 5 to answer these questions 1) For an ideal gas, which two variables are inversely proportional to each other, assuming all the other conditions remain constant? Ideal gas formula (PV=nRT) a) V and P b) V and T c) V and n d) T and P e) None of the above 2) At constant pressure. When temperature is doubled from 750C to 1500C the volume of the gas a) Increase by a factor of 75 b) halves c) doubles d) remains the same e) None of the above 3) Identify the following gas law (circle one) a) Charles law b) Daltons law c) Ideal gas law d) Boyles law e) None of the above 4) Identify the following gas law (circle the correct answer) a) Charles law b) Daltons law c) Ideal gas law d) Boyles law e) None of the above 5) Identify the following gas law (circle the correct answer) a) Charles law b) Daltons law c) Ideal gas law d) Boyles law e) None of the above 5) write the Lewis dot structure of Phosphorus Hint: Since phosphorus is in Group 5A in the periodic table, it has 5 valence electrons. Represent these as five dots surrounding the symbol for phosphorus. 6) Write the Lewis dot structure for the compound MgO Hint: draw lewis structure of magnesium and oxygen by drawing the dots around the symbol and then show what happens to the metal and the oxygen after the transfer 7) Draw the Lewis dot structure for the following compound a) Water (H2O) b) Identify how many bonding pairs electrons are present how many lone pairs of electrons are present 8) Draw the Lewis dot structure for the following compound a) Chlorine (Cl2) 9) what is the electron configuration of Oxygen a) What is the valence electron configuration? b) How many electrons are in the valance? c) Draw the Lewis dot structure of oxygen 10) What is the definition of a double bond 11) What is the definition of single bond 12) Which bond is shorter single, double or triple bonds