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Chem 100-110 Practice Final Exam 20. 34.62 mL of 0.1510 M NaOH was needed to neutralize 50.0 mL of an H,SO, solution. What is the concentration of the original sulfuric acid solution? a) 0.105 M b) 0.209 M c) 0.0523 M d) 0.218 M e) 0.0229 M

Chem 100-110 Practice Final Exam 20. 34.62 mL of 0.1510 M NaOH was needed to neutralize 50.0 mL of an H,SO, solution. What is the concentration of the original sulfuric acid solution? a) 0.105 M b) 0.209 M c) 0.0523 M d) 0.218 M e) 0.0229 M

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ISBN:9781305957404
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Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chem 100/110 Practice Final Exam 20. 34.62 mL of 0.1510 M NaOH was needed to neutralize 50.0 mL of an H,SO, solution. What is the concentration of the original sulfuric acid solution? a) 0.105 M b) 0.209 M c) 0.0523 M d) 0.218 M e) 0.0229 M 21. Which of the following is ranked in order of largest to smallest atomic radius? a) Rb> Mn> As>$>O b) Mn> Rb>0> S > As c) O>S> As > Mn > Rb d) Rb> As> Mn>0> S e) Rb> Mn > S > As > 0 22. The number 0.00215 expressed in scientific notation is a) 2.15 x 10¹ b) 2.15 x 10 c) 215 × 10¹ d) 2.15 x 10² e) 2.15 × 10³ 23. A student finds that the weight of an empty beaker is 14.049 g. She places a solid in the beaker to give a combined mass of 14.142 g. To how many significant figures is the mass of the solid known? a) 2 b) 3 c) I d) 5 24. An experiment requires 66.6 g of ethyl alcohol (density = 0.790 g/mL). What volume, in liters, will be required? a) 8.43 x 10 L b) 5.26 x 10 L c) 8.43 x 10 L d) 8.43 x 10¹ L c) 52.6 L 25. How many protons, electrons, and neutrons, respectively, does "P have? a) 15, 15, 161 b) 15, 16, 15 c) 16, 15, 31 d) 15, 15, 31 e) 15,31, 16.
Transcribed Image Text:Chem 100/110 Practice Final Exam 20. 34.62 mL of 0.1510 M NaOH was needed to neutralize 50.0 mL of an H,SO, solution. What is the concentration of the original sulfuric acid solution? a) 0.105 M b) 0.209 M c) 0.0523 M d) 0.218 M e) 0.0229 M 21. Which of the following is ranked in order of largest to smallest atomic radius? a) Rb> Mn> As>$>O b) Mn> Rb>0> S > As c) O>S> As > Mn > Rb d) Rb> As> Mn>0> S e) Rb> Mn > S > As > 0 22. The number 0.00215 expressed in scientific notation is a) 2.15 x 10¹ b) 2.15 x 10 c) 215 × 10¹ d) 2.15 x 10² e) 2.15 × 10³ 23. A student finds that the weight of an empty beaker is 14.049 g. She places a solid in the beaker to give a combined mass of 14.142 g. To how many significant figures is the mass of the solid known? a) 2 b) 3 c) I d) 5 24. An experiment requires 66.6 g of ethyl alcohol (density = 0.790 g/mL). What volume, in liters, will be required? a) 8.43 x 10 L b) 5.26 x 10 L c) 8.43 x 10 L d) 8.43 x 10¹ L c) 52.6 L 25. How many protons, electrons, and neutrons, respectively, does "P have? a) 15, 15, 161 b) 15, 16, 15 c) 16, 15, 31 d) 15, 15, 31 e) 15,31, 16.
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