Hello, I only have what is written below, but I did not understand it 100% and would need an explanation to the questions What is the equilibrium reaction in relation to the calcium cycle? CaCO3 + H2CO3 <=> Ca2+ + HCO -3 , exothermic What and why is balanced here and is there an imbalance/equilibrium?…
Wet Fe(NO3)3 nonahydrate needs to be removed from any additional water, or if possible, its own water (to exactly nonahydrate, hexahydrate, or anhydrous), so that the molar mass is clear. How can this be achieved, for example, by heating it without decomposing the rest of the compound, and at what temperature? It's intended for dyeing…
Good day, I really don't know what's going on with me today, but my brain doesn't seem to be working. What does this sentence mean? "The reaction rate v = delta c / delta t is zero after equilibrium is reached." Thank you in advance. LG
Good evening, I have a question regarding dynamic equilibrium. I have the following sentence in my notebook: " A dynamic equilibrium can be shifted toward the products or reactants by changing the temperature (removing heat in exothermic reactions, adding heat in endothermic ones), changing the concentration, or changing the pressure (in gases) ." To what…
Hey, in a chemical equilibrium reaction, do the same number of reactants and products form in a given time? Is this always the case? Thank you.
Hello, I really can't find the solution to this problem: Given the following equilibrium: 4 HCL + O2 <–> 2 Cl2 + 2 H2O (all substances are gaseous) At 480°C, Kc=889 l/mol. If 0.03 mol HCl, 0.02 mol O2, 0.08 mol Cl2, and 0.07 mol H2O are mixed in a 1-liter container, in which direction…
Does the pH value change when the temperature increases or decreases? For example, with strong and also with weak acids.
Can someone help me with problem 3c? I'm stuck right now. A hint would be great. Please don't predict the solution, as I have to solve the problem myself. Our teacher said it's a problem that might come up in our advanced chemistry exam.
Hey people, This is about the rate of reactions in equilibrium under certain conditions, which we can see here. However, a statement must be made because we do not know whether the energy values are negative or positive or whether the Kc is greater or less than 1. Does anyone have any idea how this…
Hey people, I'd like some feedback on my solution. I may have made some mistakes.
Hello. I'm currently trying to solve the optional bonus problem 17.17 in Mortimer on equilibrium reactions, and I'm a bit stuck. Can you help me? This is the solution: My approach would have been to calculate the CO concentration directly using Kc=c(CO2)/c(CO), since I was given Kc and c(CO2). Why doesn't that work?
Hello, can someone explain to me whether the reactants or the products are present in excess when the equilibrium is on the left side.