NaBr reacting with H2SO4 - The Student Room
2024年6月11日 · Be careful with the term "half-equation", it means either the reduction or the oxidation part (half) of a redox reaction. NaBr + H 2 SO 4 ==> NaHSO 4 + HBr is NOT a half-equation Br-+ H 2 SO 4 ==> HSO 4-+ HBr is NOT a half-equation-it is an ionic equation An equation shows the reactants and products of a chemical reaction and their stoichiometries An …
NaBr with H2SO4 - AS Group 7 - The Student Room
2018年3月30日 · NaBr + H2SO4--> Na H SO4 + HBr 2. 2HBr + H2SO4--> Br2 + SO2 + 2H2O and this is the way I've been taught it too? I tried to combine them (idk if this is allowed) to get NaBr + HBr + 2H2SO4--> NaHSO4 + Br2 + SO2 + 2H2O But the answer to this question is: 2NaBr + 2H 2 SO 4 Na 2 SO 4 + Br 2 + SO 2 + 2H 2 O (they also accept 2Br – + 2H 2 SO 4 …
half equations for H2SO4 + NaBr - The Student Room
I haven't the faintest clue how to do half equations and I need the half equations for the further reactions that take place here I think the main equation is: H2SO4 + NaBr--> Na2SO4 + Br2 + H2O + SO2 thanks
help on this question please - The Student Room
help on this question please. "Hydrogen bromide is made by the reaction of NaBr with concentrated phosphoric acid. Concentrated sulfuric acid is not used to make HBr from NaBr. Write an equation for the reaction of NaBr with H3PO4 to produce HBr and Na3PO4 only. State the role of H2SO4 in the formation of these two toxic gases."
AQA - Reactions of Sodium Halides with Concentrated H2SO4
2022年5月8日 · It's formed when the NaHSO4 reacts again with the sodium halide to form Na 2 SO4 and HX NaBr + NaHSO 4---> Na 2 SO 4 + HBr This is an acid-base reaction in which the bromide ion acts as the base taking the proton from NaHSO 4 You're right though, most websites and books do not have this second reaction forming sodium sulfate.
A level Chemistry - The Student Room
2021年10月3日 · The NaBr + H2SO4--> NaHSO4 + HBr is the overall reaction but what is actually happening is that the salt is dissociating and lots of ionic reactions are taking place one of them being 2Br---> Br2 + 2e-. Now you are absolutely right about the reducing power is strong enough and that is the overall reason why the reaction happens.
Concentrated Sulfuric Acid reactions with Sodium Halides
2017年4月14日 · The equation I attached at the start of the thread with bromide ions has the reduction products aswell, whereas I am used to simple showing Na2SO4 and HBr as the products, so am firstly unsure if you will always be expected to show the reduction products when asked for the reaction between a sodium halide and conc. sulfuric acid, and second was …
A level chemistry HELP - The Student Room
the organic product is going to be the one with the carbons and hydrogens and such. so in this case: (a) CH 3 OH (b) CH 3 CH 2 Cl (c) CH 3 CH 2 OH (d) CH 3 CH 2 CH=CH 2 since it's a multiple choice, i'll show you a shortcut! atom economy has the equation 'M r of desired product/ sum of M r of all products x 100' and so you're gonna be looking for a bigger number on top to …
Reaction between Sold Sodium Bromide and Concentrated …
Reaction between Sold Sodium Bromide and Concentrated Sulfuric Acid. A. ps1265A. 14. So, the reaction is: NaBr + H2SO4 ---> NaHSO4 + HBr. I don't understand how this is a redox reaction, none of the oxidations states change when I look at …
AQA A Level Chemistry Group 2 - The Student Room
2023年5月11日 · So you are starting with NaBr and H2SO4 Let’s suppose you do just form Na2SO4 and HBr. Can you: (a) Determine the oxidation states of each element in NaBr, H2SO4, Na2SO4 and HBr.