number of moles He in a 2.4 L container @ 3.2 atm, 410 K
What is 0.23 moles?
100
moles of O2 necessary to completely combust 1.2 mole CH4
What is 2.4 mole O2?
100
law of constant composition
What is the principle that states all molecules of a certain compound have the same ratio of atoms?
200
5.03 + 7.432
What is 12.46?
200
number of atoms in 2.3 moles C4H10
What is 194 x 10 to the 23rd power
200
density of He @ STP
What is 0.18 g / L?
200
number of moles O2 needed to completely combust 1.2 moles C4H10?
What is 7.8?
200
elements in a column on the Periodic Table
What is the group of elements that shares common chemical features due to a common electronic configuration in the outermost energy level?
300
17.2 X 5.4
What is 93?
300
moles of O2 made from the decomposition of 6.4 moles H2O2
What is 3.2 moles O2?
300
change in volume when a balloon of 100 L He rises from ground level @ 1 atm and 303 K to 5000 ft @ 0.6 atm and 283 K.
What is 156 L?
300
g ratio of KClO3 to O2 when 2 KClO3 is decomposed to 2 KCl and 3 O2
What is 206 / 96?
300
electronic configuration
What is the process of naming a location for each electron in an atom or ion?
400
7.46 / 0.234
What is 31.9?
400
g of Carbon needed to make 5.1 moles CO2
What is 61.2 g C?
400
change in lung volume from sea level @ 1 atm and 4.2 L to 90 ft below the ocean surface @ 3 atm, constant T.
What is 1.4 L?
400
L of NH3 made from 4.2 L H2 @ STP and adequate N2.
What is 2.8 L NH3?
400
the difference between an atom and an ion of the same element
What is the basic difference between atoms of the same element that have the same number of protons but different numbers of electrons?
500
significant figures in 4200000
What is 2?
500
g of O atoms in 5.1 moles CO2
What is 163.2?
500
molecular mass and likely ID of a gas in a balloon of 4.0 L, 1.0 atm, 300 K, and weight of 7.2 g, that is laying on the ground
What is 44 g of carbon dioxide?
500
g dry ice (CO2) produced when 17.8 L CO2 gas @ 1.20 atm, 298 K is condensed to a solid chunk
What is 38.5 g CO2?
500
isoelectronic series such as O2-, F-, Ne, Na+, Mg2+
What is the term for a group of atoms, cations and anions that have the same number and arrangement of electrons, even though the number of protons in the nucleus is different?