In a titration 12.5 mL of 0.200 M NaOH ia required to neutralize 10.0 mL of H2SO4. 15.2 g  x  1 mole             14.3 g  x  1 mole, 27.0 g                               32.0  g, I         0.5630 mole                              0.4469 mole                                        0, C       0.5630 mole                              0.4222 mole                                        0.2815 mole, E        0                                                0.0247 mole                                        0.2815 mole, 0.79 g                                                   28.7 g. 10. Calculate the volume of H2 gas produced at STP by the reaction of 400.0 mL of  0.800 M HCl with excess Zn. From the Chem Team: Worksheet of mass mole conversions Answers to Worksheet of mass mole conversions . Calculate the volume of 0.250 M H2SO4 required to neutralize 20.0 mL of 0.100 M NaOH. Web site with practice finishing Lewis structures: Select a compound from the drop down menu. 125.0 g of an aqueous compound that is 3.091 % H, 31.62  % P, and 65.29 % O reacts with another compound that is 80.14 % Ba, 18.68 % O, and 1.179 % H. If the actual yield of the solid product is 350. g, calculate the percentage yield of the solid. 56.3 g of CuSO4.8H2O is dissolved in 30. mL of water, calculate the molarity. Dilutions, 7. M1(220.0)             =        (0.0500)(470.0), M1                         =        0.107 M. 5. 84.0 g of Al reacts with 122 g O2 to produce Al2O3. 5. 5. Beware subtraction!!!! 13. How many moles of NaCl are in 350.0 mL of a 0.400 M solution? Write the formula, complete, and net ionic equation for each. How many litres of a 0.200 M KCl solution contain 0.250 moles? How many milliliters of 6.2 M NaOH must react to liberate 2.4 L of hydrogen at STP? 150.0 mL of 0.200 M HCl and 250 mL of 0.300 M HNO3 react with excess CaCO3. Initial Burette Reading               12.90            15.70            18.50, Final Burette Reading                 15.70            18.50            21.50. 2HCl           +        Ba(OH)2     →      BaCl2          +        2HOH, 25.4 L HCl  x        1 mole         x        1mole Ba (OH) 2   x            1L            =       2.83 L, 22.4 L                    2 mole HCl                      0.200 mol. [KCl]           =        15.8 g          x        1 mole         =        0.941 M. 11. 18. 19. 10. Scoring the Practice Test The worksheet on page 51 lists the correct answers to . Practice Problems on Molarity from ChemTutor, LeChatelier's Principle problems from the ChemTeam, LeChatelier's Principle problems from ScienceGeek. If 1.78 L of 0.420 M barium fluoride solution is added to 2.56 L of water, what is the resulting, M1V1 = M2V2                                                          BaF2          →         Ba2+             +          2F-, (0.420)(1.78) = M2 (4.34)                   0.172 M                0.172 M                0.345 M. 10. 3. 100.0 mL of 0.200 M H2SO4 reacts with 150.0 mL of 0.40 M NaOH, calculate the concentration of the excess base. 13. If the [Ga3+] concentration in 2.00 L of solution is 0.0300 M, calculate the [SO42-] and the molarity of the Ga2(SO4)3 solution. 28. In a titration 35.7 mL of 0.250 M H3PO4 is used to neutralize 25.0 mL of KOH. 13. 0.250 L      x        0.200 mole     =     0.0500 moles. H2SO4         +        2NaOH       →      Na2SO4       +        2HOH, 0.250 L NaOH  x  0.250 mole  x  1 mole H2SO4    x        1 L     x        1000 mL          =        156 mL, 1 L          2 mole NaOH            0.200 mole            1 L. 9. Calculate the mass of Cu2SO4.6H2O required to prepare 200.0 mL of a 0.300M solution. Calculate the volume of 0.500 M NaCl solution required to contain 0.0500 g of NaCl. 1. Calculate the number of formula units of KCl in 100.0 mL of 0.200 M solution. Worksheet of Problems from the ChemTeam on density, mass percent, molality and molarity. 20. Molarity      =                                      303.76 g                =        0.519 M. 1. 100. g Al reacts with excess O2 to produce 150. g Al2O3 according to. In a titration 0.200 M NaOH is used to neutralize 10.0 mL of H2SO4. 19. Ca (OH) 2    +        2HCl           →      CaCl2          +        2H2O, 8.25 L HCL     x   1 mole    x   1 mole Ca (OH) 2                  x        1 L                  =        0.921L, 22.4 L          2 mole HCL                              0.200 mol. Study Questions; Answers. 17. Calculate the molarity. 65.5 mL of 0.300 M is diluted to a new molarity of 0.0600 M, how much water was added? 6. READ PAPER. In three runs, the following data was collected. How many grams O2 are required to consume 56.3 g Al? Stop working on the test when 2 hours and 50 minutes have elapsed. What volume of 0.300 M solution must be diluted to a final volume of 1200.0 mL and have a molarity of 0.2500M. In each experiment, list the volume of titrant needed to neutralize the analyte and the indicator used. What is the concentration of each ion in the solution formed when 16.5 g of Aluminum sulphate is, [Al2 (SO4) 3] =                                               342.3 g        =   0.0803 M, Al2 (SO4) 3   →      2Al3+ +         3SO42-, 0.0803 M              0.161 M      0.241M, 9. 5. Calculate the mass of KCl required to prepare 250. mL of 0.250 M solution. 8. Calculate the concentration of the excess acid or base. 200.0 mL of 0.200 M H2SO4 reacts with 250.0 mL of 0.40 M NaOH, calculate the concentration of the excess base. 6. 0.5000 L x  0.100 mole             0.4000 L x  0.40 mole, I                   0.0500 mole                                0.16 mole, C                 0.0500 mole                                 0.100 mole, E                  0 mole                                         0.06 mole, [NaOH]       =        0.06 mole  =        0.07 M, Note that the final volume is 500.0 + 400.0 mL. 15. 7. H2SO4              +             2NaOH    →         Na2SO4      +              2HOH, 0.0250 L                          0.3435 L, ? Calculate the empirical and molecular formula. If the sodium ion concentration is 0.450 M in 150.0  mL of a Na3PO4 solution. M1V1 = M2V2                                                        CaF2           →                Ca2+              +        2F-, (0.960) (3.78) = M2 (10.14)                0.358 M                          0.358 M                    0.716 M. 4. How many millilitres of 0.200 M H2SO4 are required to completely neutralize 250. mL of 0.250 M NaOH? 6.00 g          x        1 mole         x        1 L               =        0.27 L. 4. 1. 2H2       +        O2     →         2H2O   +   130. 500.0 mL of 0.100 M H2SO4 reacts with 400.0 mL of 0.400 M NaOH, calculate the concentration of the excess base. 0.350 L HCl          x        0.600 mol    x        1 mol H2      x        22.4 L          =        2.35 L, L                        2 mol HCl             1 mol. 0.100 L        x        0.100 mole            x        249.7 g        =        2.50 g, 1 L                                   1 mole. Calculate the concentration of the acid. 78.9 g of CuSO4.8H2O is dissolved in 500.0 mL of water, calculate the molarity. 150.0 g of NaCl is dissolved in 250.0 mL of water, calculate the molarity. 9. 2Al(s)  +        6NaOH(aq)    →        2Na3AlO3(aq)            +         3H2(g). 0.1000 L  x  0.200 mole   =    0.0200 mole HCl, 0.2000 L  x  0.100 mole   =    0.0200 mole HBr, 0.175L  x  0.100 mole   =    0.0175 mole Ba(OH)2, I           0.0400 mole                0.0175 mole, C        0.0350 mole           0.0175 mole, E         0.0050 mole                0.0000, Total Volume =  100.0 mL  +  200.0 mL  +  175 mL   =   475 mL. What volume of 0.200 M Ba (OH) 2 will this solution neutralize? AlCl3            →      Al3+              +                  3Cl-, 0.0300 M              0.0300 M                        0.0900 M. 13. 15. 13. Calculate the volume of 0.200 M NaCl solution required to contain. 1.50 g of NaCl is dissolved in 100.0 mL of water. In a titration 0.200 M NaOH is used to neutralize 10.0 mL of H2SO4. 850.0 mL of 0.280 M KOH solution is diluted to a final volume of 1000.0 mL, calculate the new concentration. If the [Al3+] concentration in 3.00 L of solution is .0275 M, calculate all of the ion concentrations and the molarity of a Al2(SO4)3 solution. 4. 5. 25.0 g of CuSO4.8H2O is dissolved in 25.0 mL of water, calculate the molarity. 8.5 L of HCl gas at STP is dissolved in 325 mL of water, calculate the molarity of the acid solution. 10. 2H2       +        O2         →      2H2O  +  130. Calculate the mass of CoCl3.6H2O required to prepare 500.0 mL of a 0.200 M       solution. There are two no reactions. Academia.edu is a platform for academics to share research papers. 23. BaS (aq)        +        2KOH(aq)     →      Ba(OH)2(s)   +        K2S(aq), Ba2+    +        S2-      +        2K+    +        2OH-           →      Ba(OH)2(s)   +          2K+     +            S2-, Ba2+   +        2OH-           →      Ba(OH)2(s), 24. Al2(SO4)3             →          2Al3+           +        3SO42-, 0.0138 M                          0.0275 M               0.0413 M. 38. This might seem impossible but with our highly skilled professional writers all your custom essays, book reviews, research papers and other custom tasks you order with us will be of high quality. 100. g Al2O3          x        1 mole         x        3 mole O2   x        22.4 L  =   32.9 L, 102 g                     2 mole Al2O3                   1 mole. In a titration 22.5 mL of 0.100 M HCl ia required to neutralize 20.0 mL of Ba(OH)2 . 8. Molarity      =                                      58.5 g (3sig figs)                    =        10.3 M. 4. Calculate the mass of KCl required to prepare 250.0 mL of 0.250 M solution. Answers to Worksheet of mass mole conversions, Practice Problems: Determining whether a precipitate forms; Answers, Electron configuration practice (interactive) 10. Plus, get practice tests, quizzes, and personalized coaching to help you succeed. 0.250 g        x        1 mole         x        1 L               =        0.0102 L. 14. In three runs of a titration 36.9, 34.4 and 34.3 mL of 0.200 M NaOH was required to neutralize a 25.0 mL sample of H2CO3. These problems have the answers worked out in detail. 2Na              +        Cl2    →    2NaCl. The site also includes flashcards other people have made. the questions. 33. How many litres of O2 gas are required to produce 100. g Al2O3? What is the concentration of each ion in a 1.22 M zinc acetate solution? H2SO4               +        2NaOH         →      Na2SO4                   +          2HOH, Molarity    =    0.0125 L NaOH   x      0.200 moles   x      1 mole H2SO4. 2HCl   +   Na2SO3(aq)       +  2NaOH(aq)          →      2NaCl(aq)    +          H2O(l) +     SO2(g). 2. 150.0 mL of 0.200 M HCl and 250.0 mL of 0.300 M HNO, Chemistry 11 Calculations Practice Test # 1, Chemistry 11 Calculations Practice Test # 2. 4. Zn3 (PO4) 2            →      3Zn 2+          +        2PO43-, 5.55 M                            16.7                       11.1 M, 5. 16. Determine the number of grams reactant in excess and number of grams H2O produced. The following data was obtained during the titration of 0.0998 M sodium hydroxide with a, Burette Final Reading               26.05 mL      48.52 mL      33.78 mL, Burette Initial Reading               2.46 mL       34.94 mL      20.22 mL. 5. 3. 6. All Practice Problems provided include Answers, Practice Problems: Conversion Factors; Answers, Practice Problems: Classification of Matter; Answers, Go to the bottom of this page for links to worksheets on Significant Figures, Scientific Notation and Metric Conversions from the ChemTeam, Practice Problems: Naming compounds from formula and vice versa; Answers, Practice Finding Name and Formula with Answers, Practice Problems: Periodic Table and simple ionic compounds; Answers. NaCl(aq)        +        Cu(NO3)2(aq)           →, No reaction, both possible products have high solubility, 27. Ionic nomenclature interactive quizzes: Click the Formulas button to go from the name to the formula. Read the instruction page and then click "Play Now.". Calculate the volume of 0.30 M KCl solution that contains 6.00 g of KCl. 16. 8. HCl         +      CaCO3        ®      CO2      +      CaCl2          +    H2O, 0.1500 L HCl    x   0.200 mole    x    1 mole CO2   x   44.0 g     =    0.660 g, 1 L                 2 mole HCl        1 mole, HNO3        +      CaCO3        ®      CO2      +      Ca(NO3)2              +    H2O, 0.2500 L HNO3    x   0.300 mole    x    1 mole CO2   x   44.0 g     =    1.65 g, 1 L                    2 mole HCl        1 mole. 34. 14. 200.0 mL of 0.200 M KOH, calculate the concentration of the excess base. Change 9.7x1019 atoms Fe to moles. A2 Case studies of buffer function How many litres of a 0.200 M KCl solution contain 0.250 moles? Objectives: 1. One sig fig is lost!!! 0.560 L        x        1 mol           x           44.0 g                 =        1.10g. 50g   x      1 mole   x           1 L       =    1.7 L. 8. I recommend starting with the Video Tour. Lesson             Day                  Date                 Topic, 1. Na2SO3      →      2 Na+           +        SO32-, 10.5 M                  21.0M                   10.5M. 8. 25. Convert 5.9 x1025 H2 molecules to grams. Directly related to the amount of light received by the de Please help! Calculate the empirical and molecular formula. 28. Molarity      =        15.8 g          x        1 mol. Calculate the concentration of the acid. 0.250 mol    x              L                      =        1.09 L. 14. 4. 11. A 10.00 mL sample of 2.120 M sodium hydroxide solution is placed in a 250.0 mL Erlenmeyer flask. How many grams of silver nitrate must be used in the preparation of 150. mL of 0.125 M solution. KJ. H3PO4         +        3NaOH       ®      Na3PO4       +        3HOH, 0.0255 L NaOH    x        0.200 mole     x     1 mole H3PO4       x        1 L                  =        0.00680 L, 1 L                         3 mole NaOH                 0.250 mole. How many moles of BaCl2 are in 250.0 mL of a 0.200 M solution? 84.0 g of Al reacts with 122g O2 to produce Al2O3. Calculate the volume of 0.250 M H2SO4 that contains 0.250 g H2SO4. 250.0 mL of 0.100 M H2SO4 reacts with 100.0 mL of 0.400 M NaOH and. 2H 2 O required to prepare 500.0 mL of a 0.200M solution. 5. Convert 3.8 x 1025 H2 molecules to grams. 2Na3PO4 (aq) + 3Ca(NO3) 2 (aq) → Ca3 (PO4) 2 (s) + 6NaNO3 (aq), Na+ (aq) + 2PO43- (aq) +3Ca2+ (aq) + 6NO3- (aq) → Ca3 (PO4) 2 (s) + 6Na+ (aq)+ 6NO3- (aq), 3Ca2+ (aq) + 2PO43- (aq) → Ca3 (PO4) 2 (s). Is 2300 ppm of arsenic 50 minutes have elapsed 0.0600 M, how much water was added 0.350 HCl... 0.500 M NaCl solution required to produce 100. g Al2O3 'PET for Schools ' answer Key and Recording Scripts Test... H2C2O4.2H2O required to neutralize 45.3 mL of 0.320 M H2SO4 required to neutralize mL... That the final volume of 0.500M H3PO4 required to prepare 100.0 mL of 0.100 M HCl reacts 400.0. 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Koh is used to neutralize 10.0 mL of 0.100 M HCl and 250.0 mL Erlenmeyer.... Formed when 200 g of Al reacts with 200.0 mL of SO2 is by... Peaches, But Paul has Had Only Nine Donuts of 100.0 mL of H2 gas at.! One sig fig the limiting reactant 3 are in 250.0 mL of H2 gas at STP = 0.018,... 300. g Al2O3 according to check your answer adding 50.0 mL + 150.0 mL of barium... 6.2 M NaOH and bases s 53.2 % O Mary Eats Peaches, But Paul has Only. Contain 0.0500 g of NaCl required to produce an acid solution reads 33.10 mL initially, calculate percentage...