Chemistry, 18.09.2019 05:10 BLASIANNkidd
Aspherical balloon of volume 4.12 103 cm3 contains helium at a pressure of 1.24 105 pa. how many moles of helium are in the balloon if the average kinetic energy of the helium atoms is 3.60 10-22 j? part 1 of 4 - conceptualize the balloon has a volume of 4.12 l and a diameter of about 20 cm, which seems like a reasonable size for a large toy balloon. the pressure of the balloon is only slightly more than 1 atm, and if the temperature is close to room temperature, we can use the estimate of 22 l/mol for an ideal gas at stp conditions. if this is valid, the balloon should contain about 0.2 moles of helium
Answers: 3
Chemistry, 21.06.2019 23:30
Which of the following statements concerning the influence of culture on ethnic identity formation is accurate? a. one will reject ethnic identity if cultural stereotypes are encountered. b. if one’s ethnic city is different from the dominant cultural group, then one’s ethnic identity you will become weekend. c. if an the ethnic group is excepted by dominant culture, then ethnic identity formation can be a difficult process. d. similarity to the dominant culture can determine how easy it is for one to except ethnic differences.
Answers: 2
Chemistry, 22.06.2019 01:00
Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.
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Chemistry, 22.06.2019 09:30
What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.
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Chemistry, 22.06.2019 09:30
Based on its chemical properties, identify the position of each chemical family on the periodic table.
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Aspherical balloon of volume 4.12 103 cm3 contains helium at a pressure of 1.24 105 pa. how many mol...
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