Final Review

# Final Review - C3,13HW7aST 1 Calculate the following...

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C3,13HW7aST 1. Calculate the following quantity: Molarity of a 963-mL solution containing 689 mmol of glucose, C 6 H 12 O 6 . (Do not enter the units of your answer). Calculate to 2 decimal places and do not include units 2. Calculate the molarity of a hydrochloric acid solution that is 18.25% HCl by mass and has a density of 1.20 g/mL. a. 6.01 b. 21.9 c. 15.2 d. 12.0 e. 4.17 3. Calculate the following quantity: Volume of 2.050 M copper(II) nitrate that must be diluted with water to prepare 750.0 mL of a 0.8553 M solution 4. A vat contains 2.99 M hydrochloric acid solution. How many kg of Ca(OH) 2 will be required to react completely (neutralize) 851 L of the solution? Calculate to 0 decimal places and do not include units. 5. A beaker containing 250 mL of a 0.500 M solution of acetic acid COOH) is added to 125 mL of a 0.850 M solution of sodium carbonate. The reaction that ensues produces carbon dioxide, sodium acetate COONa), and water. How many grams of carbon dioxide are produced? 6. In the reaction: 2A → B, -Δ[A]/Δt = -0.50 M/s. What is the rate of formation of B? 7. At 200°C, in the reaction below, the molar concentration of A was 6.77 M after 2.00 s and 1.23 M after 7.97 s. What is the average rate of reaction in M/s? Calculate to 3 decimal places and do not include units. 2A => Q + Z

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8. The half-life for a first order reaction is known to be 4.5 h. How long will it take for 85% to be decomposed, in h? a. 1.1 b. 9.0 c. 10 d. 12 e. 27 9. The half-life of a reaction depends upon the concentration(s) of a reactant in all but which of the following rate law expressions? 10. Calculate the following quantity: Final volume of a 0.0700 M solution prepared by diluting 18.0 mL of 0.155 M lithium carbonate with water C2,7HW1aST 1. A neutral atom of the element potassium has: 2. How many electrons are in an atom of carbon-13 1. 2 2. 6 3. 7 4. 12 5. 13 3. an iron-56 nucleus contains 1. 56 protons and 26 neutrons
2. 30 protons and 26 neutrons 3. 26 protons and 26 neutrons 4. 56 protons and 56 neutrons 5. 26 protons and 30 neutron 4. Which of the following is a non-metal 1. S 2. Sr 3. Fe 4. Nb 5. Ga 5. A X-ray photon has a wavelength of 1.41 nm. What is its frequency in Hertz? Enter your answer in the form 1.02E12 for 1.02 x 10 12 with three significant figures. Do not enter units with your answer. 6. What would be the best description of Einstein's explanation of the photoelectric effect? a. Electrons have a definite mass. b. Ejection of electrons occurs when the intensity of light increases beyond a certain minimum. c. Light consists of "particles" with a definite mass. d. Light consists of "particles" with a definite energy. e. Ejection of electrons occurs when the energy of the photon is greater than a certain minimum.

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