Homework Answers
Answer (d)
A mol of any substance contains the same number of particles as a mol of any other substance.
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Problem 1. Which statement below is true (choose only one): (a) A mol of any gas...
3. Avogadro's law states that a. 1 liter of any gas contains 6.02 x 1023 gas...
3. Avogadro's law states that a. 1 liter of any gas contains 6.02 x 1023 gas molecules. b. the volume of a gas is directly proportional to its temperature. c. the gas constant equals 0.0821 L atm/(mol K) for all ideal gases. d. the volume of a gas must always be a constant. e. equal volumes of all gases at the same pressure and temperature contain an equal number of moles.
Physics 119 General Physics II Winter 2019 Assigament 2 Due Thursday, January 31 For the whole...
Physics 119 General Physics II Winter 2019 Assigament 2 Due Thursday, January 31 For the whole assignment, remember, as with everything, neatness counts. Conceptual Questions: These questions are to be answered with a short para- graph. You will be graded on the physics content of your answer as well as on its structure and conciseness. Problem 1. Which statement below is true (choose only one): (a) A mol of any gas has different volume than a mol of any other...
18. Under conditions of constant temperature and pressure, one mol of any gas will A. never...
18. Under conditions of constant temperature and pressure, one mol of any gas will A. never occupy the same volume B. always react with 2 moles of gas C. alter its volume based on the molarity D. always occupy the same volume 19. what is the molar volume of a gas? A. it is the molar mass of an ideal gas. B. it is the volume of one mol of gas. C. it is the number of grams per volume...
IV. Avogadro's number Consider two identical cylinders with moveable pistons, as described in section II. One...
IV. Avogadro's number Consider two identical cylinders with moveable pistons, as described in section II. One contains hydrogen gas other oxygen gas. and the Both cylinders have been in the same room for a long time. Their pistons are at the same height A. Compare the volumes, temperatures, and pressures of the gases in the two eylinders. Compare the number of moles of oxygen gas to the number of moles of hydrogen. consistent with the ideal gas law. Make sure...
Which one of the following statements concerning the mole is incorrect? A) One mole of a...
Which one of the following statements concerning the mole is incorrect? A) One mole of a substance contains the same number of particles as one mole of any other 8. bstance The mole is related to Avogadro's number. The mole is the SI base unit for expressing the "amount" of a substance. One mole of a substance has the same mass as one mole of any other substance.
General Chemisto Workshop 9: The Mole The mole is the unit of measurement for an amount...
General Chemisto Workshop 9: The Mole The mole is the unit of measurement for an amount in chemistry and physics. It is defined as the amount of sample that contains as many items as there are atoms in 12 grams of carbon-12 ( Isotope). The number of items in 1 mole is called the Avogadro's number NA 6.022141 x 1023 1 le t o Mole in science, just like a dozen in our everyday life, allows us to quickly count...
13. Select the correct statement below regarding H2O and SH2. a) both molecules are nonpolar b)...
13. Select the correct statement below regarding H2O and SH2. a) both molecules are nonpolar b) both molecules are polar c) H2O is polar, but SH2 is nonpolar d) SH2 is polar, but H2O is nonpolar 15. Select the correct statement a) a double bond consists of two pi bonds b) a triple bond consists of three pi bonds c) a single bond consists of one sigma bond d) all statements are correct17. Select the incorrect statement. a) Gases molecules...
General Chemistry Workshop 9: The Mole The mole is the unit of measurement for an amount...
General Chemistry Workshop 9: The Mole The mole is the unit of measurement for an amount in chemistry and physics. It is defined as the amount of sample that contains as many items as there are atoms in 12 grams of carbon 12 ( isotope). The number of items in 1 mole is called the Avogadro's number NA - 6.022141 x 100 1/mol Mole in science, just like a dozen in our everyday life, allows us to quickly count or...
Part A) A 1.37 mol sample of Xe gas is confined in a 32.7 liter container at 18.1 °C. If the temperature of the gas sam...
Part A) A 1.37 mol sample of Xe gas is confined in a 32.7 liter container at 18.1 °C. If the temperature of the gas sample is raised to 41.5 °C holding the volume constant, the average kinetic energy will remain the same decrease not enough information to answer the question increase Part B) A 1.24 mol sample of O2 gas is confined in a 29.2 liter container at 13.5 °C. If the temperature of the gas sample is lowered...
I have filled in two glass gas bulbs with the same pressure of two different gasses:...
I have filled in two glass gas bulbs with the same pressure of two different gasses: hydrogen gas (H2) and propane gas (CH,CH,CH3). The gas bulbs have the same volume and are also kept at the same temperature. Which of the two bulbs contains more molecules of gas? Select one: a. The bulb filled with propane contains more molecules, because propane has a greater molar mass than hydrogen b. The bulb filled with propane contains more molecules, because one propane...
3. Avogadro's law states that a. 1 liter of any gas contains 6.02 x 1023 gas molecules. b. the volume of a gas is directly proportional to its temperature. c. the gas constant equals 0.0821 L atm/(mol K) for all ideal gases. d. the volume of a gas must always be a constant. e. equal volumes of all gases at the same pressure and temperature contain an equal number of moles.
Physics 119 General Physics II Winter 2019 Assigament 2 Due Thursday, January 31 For the whole assignment, remember, as with everything, neatness counts. Conceptual Questions: These questions are to be answered with a short para- graph. You will be graded on the physics content of your answer as well as on its structure and conciseness. Problem 1. Which statement below is true (choose only one): (a) A mol of any gas has different volume than a mol of any other...
IV. Avogadro's number Consider two identical cylinders with moveable pistons, as described in section II. One contains hydrogen gas other oxygen gas. and the Both cylinders have been in the same room for a long time. Their pistons are at the same height A. Compare the volumes, temperatures, and pressures of the gases in the two eylinders. Compare the number of moles of oxygen gas to the number of moles of hydrogen. consistent with the ideal gas law. Make sure...
Which one of the following statements concerning the mole is incorrect? A) One mole of a substance contains the same number of particles as one mole of any other 8. bstance The mole is related to Avogadro's number. The mole is the SI base unit for expressing the "amount" of a substance. One mole of a substance has the same mass as one mole of any other substance.
General Chemisto Workshop 9: The Mole The mole is the unit of measurement for an amount in chemistry and physics. It is defined as the amount of sample that contains as many items as there are atoms in 12 grams of carbon-12 ( Isotope). The number of items in 1 mole is called the Avogadro's number NA 6.022141 x 1023 1 le t o Mole in science, just like a dozen in our everyday life, allows us to quickly count...
General Chemistry Workshop 9: The Mole The mole is the unit of measurement for an amount in chemistry and physics. It is defined as the amount of sample that contains as many items as there are atoms in 12 grams of carbon 12 ( isotope). The number of items in 1 mole is called the Avogadro's number NA - 6.022141 x 100 1/mol Mole in science, just like a dozen in our everyday life, allows us to quickly count or...
I have filled in two glass gas bulbs with the same pressure of two different gasses: hydrogen gas (H2) and propane gas (CH,CH,CH3). The gas bulbs have the same volume and are also kept at the same temperature. Which of the two bulbs contains more molecules of gas? Select one: a. The bulb filled with propane contains more molecules, because propane has a greater molar mass than hydrogen b. The bulb filled with propane contains more molecules, because one propane...
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