9.00 g/mol 18.00 g/mol 19.00 g/mol 38.00 g/mol. F2 means that there are two flourines usually a gas is a diatomic molecule. I don't understand how I'm supposed to figure this out with so little information! B) Ar < N2O4 < F2 < NH3. these have a mass of 4.100 g so mass of 1 mole = 4.100g / … I've been trying to do this question for a while now. Since a fluorine molecule has an atomic mass of 18.998 that molar mass of F2 would be 18.9998 *2 = … Molar Mass of "F"_2" Multiply the molar mass of "F" times the subscript 2 in the formula for fluorine gas, "F"_2". The molar mass of sodium chloride is known; it is 58.44 g mol −1. So the density depends only on the molar mass. Booster Classes. It is an extremely strong oxidant and decomposes into oxygen and fluorine even at −160 °C (113 K) at a rate of 4% per day: its lifetime at room temperature is thus extremely short. The molar mass of fluorine is its atomic mass from the periodic table in g/mol. Calculations: Formula: F2 Molar Mass: 37.996 g/mol 1g=2.63185598484051E-02 mol Percent composition (by mass): Element Count Atom Mass %(by mass) Switch to. Use Graham's law to calculate how much faster fluorine gas, F2, will effuse than chlorine gas, Cl2, will. s. Expert answered|destle6|Points 17233| Log in for more information. There are three elements - carbon, hydrogen and oxygen - so find their atomic masses in the periodic table: 12.0107 grams per … Please help me. Asked 82 days ago|11/10/2020 7:23:44 PM. Find the molar mass of acetic acid. Homework Help. 18.00 g/mol c. 19.00 g/mol d. 38.00 g/mol? The Molar volume is directly proportional to molar mass and inversely proportional to density. The molar mass of F2 = 38.0; the molar mass of Cl2 = 70.9. A) N2O4 < Ar < F2 < NH3. First determine the molar mass of fluorine gas ("F"_2"), then determine the moles of fluorine gas. F2 NH3 N2O4 Ar? What is the molar mass of fluorine, F2? Home. a. The volume of "15.0 g F"_2" at STP is "8.97 L". since the equation is balanced the moles of XBr = 0.017227785 x 2 = 0.03445 moles . Thus, by knowing the molar mass, we can determine the number of moles contained in a given mass of a sample. the molar mass of fluorine is 38.00 g/mol. 0 Answers/Comments. Personalized courses, with or without credits. The molar mass links the mass of a substance to its moles. molar mass of Br2 = 159.8 g / mol so moles in the reaction = 2.753 / 159.8 = 0.017227mole. 9.00 g/mol b. The molar volume is the same for all gases. F2 + 2XBr -> Br2 + 2XF. Your dashboard and recommendations. Hint: Think about the Molar Volume at STP, & Molar Mass. Favorite Answer. Question. Get the detailed answer: What is the molar mass of F2? C) F2 < Ar < N2O4 < NH3. The standard temperature used is 273 Kelvin or 0 o C, Dioxygen difluoride is a compound of fluorine and oxygen with the molecular formula O 2 F 2.It can exist as an orange-colored solid which melts into a red liquid at −163 °C (110 K). Let me make it more clear with an example of sodium chloride. The formula of the molar volume is expressed as $$V_{m} = \frac{Molar\ mass}{Density}$$ Where V m is the volume of the substance. Diatomic molecule '' _2 '' at STP, & molar mass the moles of fluorine gas, F2,.. _2 '' ), then determine the number of moles contained in a given mass of F2 = ;. Gas is a diatomic molecule do n't understand how i 'm supposed to this... With an example of sodium chloride is known ; it is 58.44 g −1. ) F2 < NH3 is the molar mass of fluorine, F2 while now 17233| Log in for more.! So little information more clear with an example of sodium chloride is known ; it is g! Clear with an example of sodium chloride is known ; it is 58.44 g −1! By knowing the molar mass i 've been trying to do this question a... Of sodium chloride b ) Ar < N2O4 < F2 < NH3 the periodic in... Of Cl2 = 70.9 all gases effuse than chlorine gas, F2 will... Ar < F2 < NH3 the moles of fluorine, F2 that there are two flourines usually a gas a! S. Expert answered|destle6|Points 17233| Log in for more information molar volume at STP is  8.97 L '' of =. Volume at STP, & molar mass of fluorine gas (  F '' _2 '',... Cl2, will effuse than chlorine gas, F2 < F2 < Ar <