Question

CaCO3+2HBr>CaBr2+H2O+CO2 сколько моль бромоводородной кислоты должно прореагировать,чтобы образовплось 30 углекислого газа?

Answer 1

Ответ:

Объяснение:

                          Х моль                        30 л

   CaCO3     +    2HBr   =    CaBr2   +   CO2   +   H2O

                      n=2 моль                      n=1 моль

                                                          Vm=22,4 л/моль

                                                           V = 22,4 л

Х моль  HBr   -   30 л  СО2

2 моль  HBr   -   22,4 л  СО2

n(HBr) = 2 * 30 / 22,4 = 2,7 моль

Answer 2

Answer in detail. CaCO3 + 2HBr > CaBr2 + H2O + CO2 How many moles of hydrobromic acid must react to form 30 moles of carbon dioxide gas?

To answer this question, we need to use the stoichiometry of the balanced chemical reaction and the mole ratio between the reactants and products. The balanced chemical reaction is:

CaCO3 (s) + 2 HBr (aq) → CaBr2 (aq) + CO2 (g) + H2O (l)

The mole ratio between HBr and CO2 is 2:1, which means that for every mole of CO2 produced, two moles of HBr are consumed. Therefore, to produce 30 moles of CO2, we need 2 x 30 = 60 moles of HBr. This is the theoretical amount of HBr required for the reaction. However, in practice, there may be some limiting factors that affect the actual amount of HBr needed, such as the purity of the reactants, the temperature and pressure of the system, the presence of catalysts or inhibitors, etc. These factors can be determined by performing an experiment or using a simulation tool.

If you want to learn more about the reaction between calcium carbonate and hydrobromic acid, you can check out these web sources:

- [chem Flashcards | Quizlet](https://quizlet.com/531007765/chem-flash-cards/) - [Solved Calcium carbonate reacts with hydrobromic acid to - Chegg](https://www.chegg.com/homework-help/questions-and-answers/calcium-carbonate-reacts-hydrobromic-acid-form-calcium-bromide-carbon-dioxide-water-accord-q23410265) - [CaCO3 + HBr → H2O + CO2 + CaBr2 | Equation Balance](https://chemicalequationbalance.com/equation/CaCO3%20HBr=H2O%20CO2%20CaBr2-5666)