CHEM 116 Final Exam questions with answers.

CHEM 116 Final Exam questions with |\ |\ |\ |\ |\ |\




answers

A solution is made by mixing 37.8 mL of 0.354 M CaI2 and 36.7
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mL of 0.288 M AlI3. What is the concentration of I- in the
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resulting solution? - CORRECT ANSWERS ✔✔7.85 × 10-1 M
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Which of the following is a solution?
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-paint
-fog
-blood
-brass
-none of the above - CORRECT ANSWERS ✔✔brass
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Salt in water
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Sugar in water |\ |\




Alcoholic drinks (alcohol in water) |\ |\ |\ |\




Tea
Oxygen in water |\ |\




....are examples of what? - CORRECT ANSWERS ✔✔solutions
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Which of the following is a solution?
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-bronze
-glass

, -gold
-air
-all of above - CORRECT ANSWERS ✔✔all of the above
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What is the expected vapor pressure when 58.9 g of hexane
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(C6H14) is mixed with 44.0 g of benzene (C6H6) at 60.0 °C?
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Vapor pressure of pure hexane at 60 °C is 573 torr.
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Vapor pressure of pure benzene at 60 °C is 391 torr. - CORRECT
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ANSWERS ✔✔3. VP=491 torr |\ |\ |\




A solution contains .550 moles of CH3CN (P=81torr at 23C) and
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.350 moles of C3H6O (P=184.5 torr at 23C). The vapor pressure
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of the solution at 23C is? - CORRECT ANSWERS ✔✔121 torr
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Find the molarity of 21.4 m HF. This aqueous solution has a
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density of |\




1.101 g/mL. - CORRECT ANSWERS ✔✔4. 16.5 M HF
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Find the molality of 18 M H2SO4. This solution has a density of
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1.84 g/mL. - CORRECT ANSWERS ✔✔4. 242 molal H2SO4
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If a reaction is endothermic, which way does the eqm shift if the
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temp increases? - CORRECT ANSWERS ✔✔to the product side
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(right)