Respuesta :
Answer:
Explanation:
Okay. So we have been asked to calculate the Henry's law constants of 02 at 40 degrees Celsius. Now the scalability of 02 in water that was given a 6.5 mg per later understand that. Million is a prefix and it's the value is times 10 to the power minus three. Now at atmospheric pressure we're giving 1.8 E. M. The temperature 40 degrees Socials. The Henry's law constants are representing that with a case of age and that is what we are looking for. Case of H. That's what we are looking for. Now the hair is law constant. It can be written in two forms. It can either be written like this or it can be written like that and whichever one you right you're correct. But it depends on the unit of the Harris law constant. In this particular case we are going to use this one and in no time you know why you know why now P is your partial pressure? The case of H is the Harris law constantly C. S. The concern show issue is the concentration. Now you realize that when you look up here we have our cell ability to be in milligram per later. But the final solution we are being asked to leave our final answer mo per letter a T. M. Movie later, 80 M. Therefore we need to convert this particular um figure here to move later, 80 M. To do that. We need to do it in steps. So first we convert it to grandpa later. Then from grandpa later to move later. How do we do that? So we have the million Is time sensitive about my next race. When you Change that, you're going to get 0.0065g later. Now the molecular mass of the 02 is 32 grand per move. So when you divide that by the possibility that you have, which is this particular one, then you get the answer in more per later. So our final answer in more for later. 0.000 203 most later. That is the answer from there. Now, that is our sole ability. What about our partial pressure? The partial pressure is given to us by this formula which is more fraction multiplied by the total pressure. And there's something we need to note. What we need to notice that oxygen in the atmosphere is 20.95%. So oxygen the 02 in the atmosphere. So, I use a tm to represent the atmosphere in the atmosphere. S 20 points 95 percent. 20.95%. And when you understand that, it would help us a lot. and remember the pressure. Is that one ATM. That is a total pressure. That is a total pressure. So yes, we can calculate the partial pressure. That will be 20 Where it's 95. All over 100. Multiplied by one. All over 100. multiplied By one. And this is going to give us zero points 20 nine five. Zero points 2095. Okay. And This is 80 m eight years. Okay. This is not the end. Remember the formula. Remember the formula? Which is this This particular formula The Harris Law can be written as they said. So let's pick that formula and just substitute values in there. So we have C. Is equal two cases of each multiplied by T. So we are looking for K. H. Case of H. And that will be C. All over api all over RP. So simple substitution. What we have the C. Is zero points 00 there 203. All over zero 20 nine five 95. And quickly when you compute this on a calculator, you're supposed to get 0.000 nine six. No. And this is he moves later. A. T. M. And this answers the question.
