1000 Words Feb 26th, 2016 4 Pages
Experiment 1 Avogadro’s Law

Multiple Choice Questions

1. How many atm of gas did you add to the flask? A. 1 atm B. 3 atm C. 4 atm D. 2 atm 2. What was the volume of the flask? E. 100 mL F. 120 mL G. 150 mL H. 88 mL 3. How many grams of propane were there in 1 atm? Choose the closest answer. I. 0.735 g J. 0.274 g K. 0.664 g L. 0.232 g 4. How many grams of butane were there in 1 atm of gas? Choose the closest answer. M. 0.774 g N. 0.361 g O. 0.664 g P. 0.214 g 5. How many grams of methane were in 1 atm of gas? Choose the closest answer. Q. 0.244 g R. 0.337 g
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d. The volume of the gas varied depending on the identity of the gas. 10. There are 6.022 * 10^23 molecules/mole. Based on the number of moles in 1 atm of gas, how many molecules is this? Choose the closest answer. e. 10 * 10^10 molecules f. 3.7 * 10^21 molecules g. 6.8 * 10^21 molecules h. 8.4 * 10^23 molecules 11. The number of molecules in 1 atm of gas at constant pressure and temperature is identical, regardless of the identity of the molecules in the gas. Which of the following other statements are also true? i. The volume of a gas is independent of the pressure of the gas. j. The temperature of a gas is independent of the pressure of the gas. k. The total number of atoms in the gas at standard temperature and pressure can vary depending on the identity of the gas l. The molecules in a gas slow down with increasing temperature. 12. How many moles of ATOMS are there in 1 mole of methane (CH4)? m. 5 moles n. 1 mole o. 10 moles p. 3 moles 13. In this experiment, the pressure (P) was 1 atm, the temperature (T) was 295 K, the volume (V) was 0.150 L, and the number of moles (n)was 6.2 * 10^-3 moles. The ideal gas law states that P*V = n*R*T. Based on your experiment, what value do you get for R? q. 0.221 atm*L/(mol * K) r. 0.0112 atm*L/(mol * K) s.

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