Angely R.

This page lists questions and answers that were posted by visitors named Angely R..

Questions

The following questions were asked by visitors named Angely R..

A reaction has a standard free-energy change of –10.30 kJ mol–1 (–2.462 kcal mol–1). Calculate the equilibrium constant at 25ºC.? This is what I've done so far.. ∆Gº= -2.3 RT + log (K) -10.31 kJ = -2.3 (.0083145)(298) + log K -10.31 kJ = -2.3 (2.48) log K...

HClO(aq) + H2O (l) <> H3O+ (aq) + ClO-(aq) Calculate the value of ΔGrxn at 25 °C for hypochlorous acid when [ClO-]=[H3O+]=5.69x10^-5 M [HClO] = 1.340 M Previously calculated a ΔGºrxn of 42.20 kJ/mol Q = [5.69x10^-5] / [1.340] = .00004245 M equation used:...

Question as follows: If you combusted 23g of ethanol with an excess of oxygen how much heat would be released or absorbed? the only thing I've deduced is the chemical reaction: C2H6O + 302 -> 3H20 + 2C02 I'm not sure how to proceed. I need Q. Not sure whi...

So my chem professor had a slide with a question that follows: If you combine 100 ml of 0.10 M HCl and 100 ml of 0.10 M NaOH, and find that the temperature goes up 0.67 degrees K What is ΔH° for the reac/on: OH(aq)- + H+(aq)->H2O(l)(c H2O= 4.18 J/°C sg,...

Answers

The following answers were posted by visitors named Angely R..

5/8 Money=9 Money= 8/5 * 9= 14.40

Nope. That gives me .0156621, and when I input that I got the response "Incorrect. The standard free energy change is negative." I changed it to a negative and it still didn't work.

I think I tried that. Let me show u my notes: -10.30 kJ = -(.0083145)(298) lnK -10.30 kJ = -2.478 lnK -10.30/-2.478 = lnK 4.157 = lnK e^(4.157) = 63.88 = Incorrect.

I'll even try the inverse -2.478/-10.33 =lnK .2399 = lnK e^(.2399)= 1.27 = incorrect

I'm using .0083145 for R because the -10.31 is in kJ

I COULD KISS YOU RIGHT NOW

They're back together in their new state. ICE (Slant)<-- Crystalloid formed molecules; they are vibrating slightly but packed together so tightly they do not move. As TRANSITION FROM ICE TO LIQUID <-- since heat is being applied molecules are moving about...

Did you try doing the Stoichiometric equation? Mg - 24.31 g Cl - 35.45 g Total Mass - 59.76 g 29g MgCl (1 mol MgCl/59.76g)= the answer.

Usually informants have a agreement with the government so that they have a lesser sentence or freedom while their gang mates get caught

grapefruit juice is considered acidic. So the question becomes what part of the pH scale is acidic?

Looking at laws of log: log(a+b) 3- log x + log 2 = 5 3- log x + .30103 = 5 Combining like terms, and moving log to the other side so we can stay positive 3- log x + .30103 = 5 + log x -5 3+.30103-5 = log x you can continue doing this and isolate x by usi...

I usually convert it (especially in ΔG = ΔGº + RTlnQ ) because it will confuse me other wise and I will get wrong numbers. I usually keep kJ because that's usually what I need, unless specified otherwise. I suppose I don't need to convert it for ΔG = RTln...

It's definitely not A or B. Ionic compounds share electrons, I keep thinking of NaCl and KBr which are both ionic compounds. I've drawn both in lewis dot structures multiple times, so A is out, as well as B. C is out because ionic compounds share electron...

I agree with Carls. France didn't become an ally until much later in the war.

okay so then Q = [5.69x10^-9]^2/1.3405 = 3.238x10^-9/1.3405 = 2.42x10^-9 ΔG = 42.20 + (.00833145)(298) ln (2.42x10^-9) = 42.40 + (2.477) (-19.84) = 42.40 + -49.144 = -6.74 rounded to 7 which is correct. Thank you sir! <3

"These structures are sometimes described as "cellular power plants" because they generate most of the cell's supply of adenosine triphosphate (ATP), used as a source of chemical energy.[2] In addition to supplying cellular energy, mitochondria are involv...