CHEMISTRY SEMESTER B FINAL EXAM REVIEW EXAM QUESTIONS WITH 100% CORRECT ANSWERSS

What atoms follow the Duet role? Li and Na What type of bonding takes place between N and F? covalent Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:08 / 0:15 Full screen How many electrons is an octet? 8 To draw the Lewis Structure of the polyatomic ion CIO2, you would have to ________ those in the structures of Cl, O, O and O. add one electron to The correct Lewis structure for a molecule of the compound C2H2 contains one triple bond Which of the following atoms has six valence electrons? Sulfur What is this structure for H2? H-H In a double bond, two electrons share a total of ______ electrons. four How many moles of HCl are present in 0.70L of a 0.33 M HCl solution 0.23mol What is the molarity of a solution that contains 125 g NaCl in 4.00 L solution? 0.535M How much KCl can you dissolve in 200g of 40 C water according to figure 1? 80g Which amount of KCIO3 dissolves in 100g of 30C water makes a saturated solution? 10g What is the molarity of a solution that contains 0.202 mol KCl in 7.98 L of solution? 0.0253 M The volume of 6.00M HCl needed to make 319 mL of 6.80M HCl is 362 mL Dissolved in water to make 100 mL of solution, 1.00g of NaCl would have a concentration of 0.171 M An NaOH solution contains 1.90 mol of NaOH, and its concentration is 0.555 M. What is its volume 3.42 L In the reaction H3PO4 + H20 -> H30+ + H2PO4, the ion H2PO4 acts as a(n) base A water solution whose pH is 2 is always acidic A water solution whose pH is 12 is always basic The pH of a solution is 10. What is its OH- concentration? 1.00 x 10-4 M In a acid-base tiration, equivalent quantities of hydronium ions and hydroxide ions are present at the equivalency point Consider the reaction HNO2 + H2O -> H3O+ + NO2. Which species is a conjugate base? NO2 Acids taste sour What is the molarity of an HCl solution if 50.0 mL is neutralized in a titration by 40.0 mL of 0.400M NaOH? 0.320M What is the pH of a neutral solution? 7 The pH of a solution is 9. What is its H3O+ concentration? 1 x 10-9 M What is the pH of a 1 x 10-4 M HCl solution? 4 If [H3O+] = 1.70 x 10-3 M, what is the pH of the solution? 2.77