Diborane (B2H6) is a gas at room temperature that forms explosive mixtures with air.It reacts with oxygen according to the following equation: B2H6(g)+3O2(g)→B2O3(s)+3H2O(l) How many grams of diborane will react with 7.0 mol of O2?Express your answer to two significant figures and include the appropriate units. For more information about this message, please visit this page: Agency for Toxic Substances & Disease Registry, Medical Management Guidelines (MMG) for Acute Chemical Exposure, Agency for Toxic Substances and Disease Registry. Diborane vapors are heavier than air and may collect in low-lying areas. Has auto complete popup list. The standard enthalpy of dimerization of BH 3 is estimated to be −170 kJ mol −1. Hospital personnel are at minimal risk of secondary contamination Rescue personnel are at low risk of secondary contamination In the meantime, please return home and try your request again. hospital personnel in an enclosed area can be secondarily Matsumoto. Email: Contact CDC-INFO. Instead, ask for a written lesson. B 2 H 6 + 3O 2 → B 2 O 3 + 3H 2 O. ΔH = -2165 KJ mol-1 – Diborane reacts with methyl alcohol to give trimethyl Borate. To access this article, please. The spectrum of BH and a pressure change were evidence of this when diborane was flashed alone at about 0$\cdot$01 atm. For example, it might be a waste of your time to wait online while a tutor reads and comments on your essay. Diborane is highly irritant when it contacts moist tissues such as the eyes, skin, and upper respiratory tract and can cause thermal burns. We use cookies to help provide and enhance our service and tailor content and ads. (Up to 30 minutes), * 96% of last 100 reviewed lessons were positively reviewed, 1) the amount of time you’d like them to spend (i.e. Since it is known that diborane can react explosively with oxygen, in qualitatively the same manner as hydrogen can, branching chain reactions are involved in the oxidation. address. Because of the alkyl branching, only two alkenes add to a BH 3 moiety (steric hindrance again), leaving one B-H covalent bond available for reaction … received from your tutor. It reacts with water to form hydrogen and boric acid. Diborane react with oxygen B 2 H 6 + 3O 2 → B 2 O 3 + 3H 2 O [ Check the balance ] Diborane react with oxygen to produce boron trioxide and water. Gobbett & Linnett (i962) have pointed out that oxygen and diborane have different effects on the second limit of explosion, oxygen having a … The kinetics of the B2H6/O (3P) system at room temperature. We currently support files up to 15MB in size. In the absence of other chemical species, it reacts with itself to form diborane. © 2003-2020 Chegg Inc. All rights reserved. This article is cited by ___________;__________. (You can set one up A Chemistry student asked our tutors for a. Diborane (B2H6) is a gas at room temperature that forms explosive mixtures with air. rescuers entering areas with potential high concentrations JSTOR®, the JSTOR logo, JPASS®, Artstor®, Reveal Digital™ and ITHAKA® are registered trademarks of ITHAKA. may rarely occur. JSTOR is part of ITHAKA, a not-for-profit organization helping the academic community use digital technologies to preserve the scholarly record and to advance research and teaching in sustainable ways. The file you've uploaded is too large. Timothy A. Ablott, Shane G. Telfer, Christopher Richardson. Diborane gas is irritating to the eyes, skin, and respiratory Calculate the standard enthalpy of formation of gaseous diborane (B2H6) using the following thermochemical information: 4 B(s) + 3 O2 (g) ---> 2 B2O3 (s) Delta H = -2509.1 kJ 2 H2(g) + O2 (g) ---> 2 H2O (l) Delta H = -571.7 kJ B2H6 (g) + 3 O2 (g) ----> B2O3(s) + 3 H2O (l) Delta H= -2147.5 kJ b. Pentaborane (B5H9) is another boron hydride.
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