Homework 4.docx - CHM 114 GENERAL CHEMISTRY I FALL 2017...

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CHM 114 GENERAL CHEMISTRY I FALL 2017 TAKE HOME ASSIGNMENT #4 SHOW YOUR WORK! REMEMBER TO CONVERT FROM CELCIUS TO KELVIN WHEN MAKING CALCULATIONS… (K = C +273) 100 points total 1. (10 points) Write out Charles’s Law, Boyle’s Law, and Avogadro’s Law. Clearly label each, and then say what is assumed to be constant when using each equation. 2. (5 points) A balloon is filled with 0.5 L of gas at 25 C. You heat the balloon to 100 C, but it remains intact – what is the new volume of the balloon?
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3. (5 points) Convert the following values: a. 890 mm Hg to atmospheres b. 0.4 atm to KPa c. 314 K to C d. 2 moles of He to Liters of He e. 2 moles of N 2 to Liters of N 2 4. (10 points) Nickel tetracarbonyl (formula: Ni(CO) 4 ) is a useful organometallic compound, but it is outrageously toxic. In its gaseous state, it will readily ignite in air at room temperature, and it is believed to be immediately fatal at concentrations as low as 30 parts per million (CO 2 , by contrast, is present in the air at 400 ppm). People can’t agree on whether or not it is carcinogenic, largely because it kills far too quickly to be able to tell.
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